Page 1
METEOROLOGY
(Surender Singh)
NAME
Instructor
Subject
Batch
Date
Time
Max.Marks
Obt. Marks
1. Height of freezing
freezing level
level during
during m
monsoon
onsoon season over
over Delh
Delhii is nea
nearr
a.
850 mb
b.
700 mb
c.
500 mb
2. In break monsoon conditions
conditions th
the
e axis of the
the monso
monsoon
on throu
through
gh at mean
mean sea leve
levell is
a.
In its normal position
b.
To the south of its normal position
c.
To the north of its normal position
3. If the surface
surface air temperature
temperature iis
s 30 deg C the temperatu
temperature
re at 2 km. (assuming
(assuming dry a
adiaba
diabatic
tic
lapse rate prevailing up to 2 kilometers from the surface) is about
a.
18 deg C
b.
10 deg C
c.
42 deg C
4. Warm an
an most air moving
moving over a cold ground
ground gives rise tto:
o:
a.
Thunder Clouds
b.
Fog and Stratus
c.
Frontal Clouds
5. An is
isot
othe
herma
rmall atm
atmosp
osphe
here
re is
a.
Stable
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b.
Unstable
c.
Neutral
6. Fro
Front
nts
s are a
asso
ssocia
ciated
ted wit
with
h
a.
Tropical Cyclone
b.
Monsoon depression
c.
Extra Tropical Cyclones
7. The
The ther
therma
mall w
win
ind
d is
a.
The wind that below because of thermals
b.
The
The win
wind
d wh
whic
ich
h mu
must be
be add
adde
ed v
ve
ecto
tora
raly
ly to th
the g
geo
eost
stro
roph
phic
ic win
wind a
att tth
he
lower level in order to obtain the geostrophic wind at the upper level
c.
The w
wa
ard wind th
that blows tth
he hi
hill on th
the le
leeward side
8. A co
cold
ld ffron
rontt is defi
define
ned
d as:
as:
a.
A ridge of high pressure
b.
Loading edge of advancing warm air
c.
Loading edge of advancing cold air
9. Normal
Normal wi
winds
nds a
att 200 mb a
att Del
Delhi
hi in Janua
January
ry are
a.
Westerlies
b.
Easterlies
c.
Southerlies
10. Sigmet iis
s issued for
for
a.
Fog
b.
Heavy Rain
c.
Active thunderstorm Area
11. A jet strea
stream
m wind iis
s
a.
40 Kt or more
b.
60 Kt or more
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c.
Not more then 100 Knot
12. Easterl
Easterly
y jet over India is seen in
a.
Northest monsoon season
b.
Pro – monsoon season
c.
Southwest monsoon season
13. Radio – Sond
Sonde
e is used to measure
a.
Amount of cloud and its speed
b.
Wind at various pressure levels
c.
The temperature and humidity at various pressure levels.
14. Tropop
Tropopause
ause is lowest over:
over:
a.
Polar Areas
b.
Mid Latitudes
c.
Tropics
15. The rate of fall of pressure with height on w
warm
arm air mass will be:
a.
The same as in cold airmass
b.
More than in a cold airmass
c.
Less then in a cold airmass
16. Warm air advec
advection
tion gives rise
rise to
a.
Veering of wind with height
b.
Backing of wind height
c.
No change in wind direction with height
17. Severe tropical cyclones in bay of Bengal are most frequent in
a.
S/W Monsoon Season
b.
Pre – Monsoon Season
c.
Post – Monsoon Season
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18. Wind speed in tropi
tropical
cal cyclone
a.
Is between 24 and 35 knots
b.
In not more than 50 knots
c.
Exceeds 33 knots
19. In a cyclone in Northern Hemisphere, around the low pressure centre
a.
Wind blows in an anti clockwise direction
b.
Wind blows in clockwise direction
c.
Wind are clam
20. If an reads aerodrome elevation at ground level, then the sub – scale must have been set to:
a.
QNH
b.
QNE
c.
QFE
21. Density o
off moist air is
a.
Higher than dry air
b.
Lower than dry air
c.
Equal to dry air
22. Lines of constant wind speed drown on weather charts are called:
a.
Isobars
b.
Isotachs
c.
Isogons
23. In geostrophic wind the following factors are important
a.
Pressure gr
gradient ffo
orce an
and C
Co
orriolis ffo
orce
b.
Pressure g
gr
radient fo
force an
and Ce
Centrifugal ffo
orce
c.
Centrifugal force and Corriolis force
24. A TREND type lan
landing
ding forecast is valid for
for
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a.
9 hrs
b.
2 hrs
c.
4 hrs
25. Wha
Whatt is:
a.
AIREP
b.
METER
c.
RVR
d.
CAVOK
e.
TAF
26. Match the following by choosing one from A and one from B
A
Matching A
a.
Thunderstorms
Eye
b.
Depression
c.
Tropical Cyclone
d.
Frost
e.
Satellite
f.
Stable Atmosphere
Squall
g.
Fronts
Cloud Imagery
h.
Anticyclones
Pro – Monsoon
i.
Heat waves
Strong Winds
j.
Sub – tropical westerly jet
Inversions
Fine Weather
Extra tropics
Bad Weather
Winter
27. The average height of the Tropopause varies from approx
a.
8 km at the poles to 16 km at the equator
b.
12 km at the equator to 9 km at the poles
c.
16 km at the poles to 9 km at the equator
28. The rate of fall of pressure with height in a warm air mass
a.
Will be less than in a cold air mass
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b.
Will be more than in a cold air mass
c.
The same as in a cold a air mass
29. In the N
Northern
orthern Hemisphere, geostrophic wind
wind blows
a.
Parallel to the isobars with high pressure to the left
b.
Across the isobars from high pressure to low pressure
c.
Parallel to the isobars with low pressure to the left
30. Under the same condition of pressure and temperature moist air is
a.
Lighter than dry air
b.
Heavier than dry air
c.
Has the same density as dry air
31. If the wind above a certain station is reported to be ffrom
rom the North at an altitude of about
3600 ft you would expect the surface wind to be from:
a.
North East
b.
North
c.
North West
32. The solar radiation received by the earth is called
a.
Insolation
b.
Convection
c.
Inversion
33. Earth radia
radiates
tes heat energy in the
a.
Long Waves
b.
Short Waves
c.
Very Short Waves
34. Instrum
Instrument
ent for recording pressure
pressure is called:
a.
Anemograph
b.
Barograph
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c.
Hygrograph
35. Instrum
Instrument
ent for recording pressure
pressure is called:
a.
10 C/Km
b.
15 C/Km
c.
5 C/Km
36. Any lapse rate less than saturated adiabatic lapse rate is described as
a.
Absolutely unstable
b.
Conditionally stable
c.
Absolutely stable
37. At a height of 16 km the temperature over the
the equator is
a.
b.
Higher than over the poles
Nearly the same over the poles
c.
Less than over the poles
38. On the lee side of mountains you would normally expect to find
a.
Down Drafts
b.
Updrafts
c.
Eddies and down-drafts
39. If you are flying from Bombay to Calcutta holding a constant indicated altitude and
experience a drift to the Starboard side, your actual altitude will be
a.
Lower than your indicated altitude
b.
The same as the indicated altitude
c.
Higher than the indicated altitude
40. Ice generall
generally
y forms on aircraft when
a.
The aircraft is flying through cirrus clouds.
b.
Ice crystals are present in the area of flight
c.
Water dr
droplets ar
are pr
present wi
with s
su
ubfreezing te
temperature.
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41. High clouds that take the form of hooks ending in small tufts are termed
a.
Cirrocumulus
b.
Cirrus
c.
Altocumulus
42. Lines of constant wind speed on weather charts a
are
re called
a.
Isotachs
b.
Isohects
c.
Isobars
43. Radio Son
Sonde
de is used to determin
determine
e
a.
The base of low clouds over a station
b.
The wind at various levels
c.
Temperature a
an
nd hu
humidity at
at v
va
arious pr
pressure lle
evels.
44. When a warm ffront
ront passess, the surface wind
a.
Back and increases
b.
Veers and decrease
c.
Veers and increase
45. The den
density
sity of a
air
ir
a.
Varies directly as pressure and temperature
b.
Varies d
diirectly as
as pr
pressure an
and in
inversely a
as
s te
temperature.
c.
Varies in
inversely as pressure an
and directly as tte
emperature
46. In the Troposph
Troposphere
ere density
a.
Increase with height
b.
Decrease with height
c.
Remains nearly constant.
47. Norwest
Norwesters
ers a
are
re
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a.
Depressions in (he Bay of Bengal which move towards
b.
Violent thunderstorms
c.
Western disturbances which affect NW
NW India.
48. The major constituent of air by weight is
a.
Oxygen
b.
Nitrogen
c.
Carbon dioxide
49. Thunderstorm activity is predominant in
a.
NE India
b.
Central India
c.
South Peninsular India
50. The altimeter of an aircraft parked at an a
airfield,
irfield, indicated a height of 450 ft when the
subscale of the instrument was set to 1013 Mbs If the QNH a the airfield was 1000-Mb and
a change of pressure of 1 Mb represents a height change of 27 ft, what is the elevation of
the airfield
a.
99 f t
b.
549 ft
c.
530 ft
51. The average height of the troposphere is
a.
Greatest near equator and minimum near poles
b.
Gre
rea
atest nea
nearr mid
midd
dle la
latitud
udes
es and mi
minimum n
nea
earr eq
equa
uattor and po
poles
c.
Greatest near poles and minimum near equator.
52. An adiabatic process is one in which heat content of the system.
a.
Increases
b.
Decreases
c.
Does not change
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53. Surface wind velocity reaches a maximum of most days at a given station
a.
In the afternoon
b.
In the early morning hours
c.
Any time of the day.
54. The temperature to which moist air must be cooled at its existing pressure
and humidity-mixing ratio in order that it shall be saturated, is called
a.
Wet bulb temperature
b.
Dew point temperature
c.
Virtual temperature
55. In the International Standard
Standard Atmosphere
a.
Means se
sea lle
evel pr
pressure iis
s1
10
000 m
mb
b an
and te
temperature is
is 1
15
5 C
C..
b.
Means s
se
ea level p
pr
ressure is 10
1013.25 mb and temp is 15
15 C
c.
Rate of fall of temp with height is 6.5 C/Km upto 21 Km.
56. An area on a weather map where isobars are relatively more closely packed, the surface
winds are likely to be
a.
Light and parallel to isobars
b.
Strong and parallel to isobars
c.
Strong and blowing across the isobars
57. The winds which spiral inward in a counterclockwise direction in the Northern Hemisphere
are associated with
a.
Low pressure area
b.
High pressure area
c.
Turbulence
58. Strong wind sheer conditions in the lower levels of the atmosphere are normally associated
with
a.
Thunderstorm
b.
Amount of moisture present
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c.
Fine weather
59. Hail is most likely to fall from a cloud
a.
Having layers
b.
Composed of ice crystals
c.
Having strong vertical de
development
60. The atmosphere may be nearly taken to be dry if the difference between the dry bulb temp
and dew point temperature is
a.
20 deg C
b.
5 deg C
c.
0 deg C
61. Dry air having a temperature of 35 deg C on surface when forced to rise adiabatically by 1
Km would attain a temperature of
a.
29 deg C
b.
25 deg C
c.
45 deg C
d.
41 deg C
62. Advection fog forms on nights characterized by
a.
Light and most winds; sky clear
b.
c.
Strong winds; sky cloudy
Slow
Slow pass
passag
age
e of re
rela
lati
tive
vely
ly wa
warm
rm,, mois
moistt and
and st
stab
able
le air
air over
over a co
cool
ol surf
surfac
ace
e
63. If an observer stands with his back to the w
wind
ind in the Northern Hemisphere, the lowpressure area will be
a.
Ahead of him
b.
To his left
c.
To his right
64. A High-intensity, short - duration, showery precipitation is associated with
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a.
A stratus cloud
b.
An altostratus cloud
c.
A cumulonimbus cloud
65. A squall is a phenomenon characterizing
a.
Heavy rainfall and downdraft in a thunderstorm
b.
The
sudden and
freq
eque
uen
nt
lighteni
ening
discha
charge
observ
erved in
a
thunderstorm
c.
The s
su
udden rise of surface wi
wind s
sa
atisfying tth
he sp
specif
cified crit
riterion o
off
Wind speed and duration associated with a thunderstorm.
66. The conditions necessary for formation of a thunderstorm are
a.
Steep lapse rate, strong winds
b.
Steep la
lapse rate, ad
adequate supply of mo
moisture
c.
Shallow lapse rate, adequate supply of moisture.
67. A "mature" thun
thunderstorm
derstorm has
a.
Strong updraft only
b.
Strong downdraft only
c.
Strong updrafts and downdraft
68. A dry air parcel from the surface level with a temperature of 35 deg C is lifted adiabatically
to a height of 1 km. Its temperature at this level will be
a.
30 deg C
b.
Same
Same as the
the s
sur
urfface
ace tem
tempe
pera
ratture,
ure, si
sin
nce in an a
adi
diab
abat
atic
ic proc
proces
ess
sn
no
oh
hea
eatt is
is a
all
llow
ows
s
to enter or leave the system.
c.
25 deg C
69. Aircraft icing is most favoured in the cloudn regions which have temperature:
a.
Ranging between
15 deg C to 40 deg C
b.
Ranging between
0 deg C to 15 deg C
c.
Below-40 deg C
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70. Hails is the
the
a.
Soli
Solid
d pre
reci
cipi
pita
tati
tion
on whi
hich
ch comm
common
only
ly oc
occu
curs
rs ov
over
er th
the
e mo
moun
unta
tain
ins
s re
regi
gion
ons
s
during winter.
b.
Fro
Frozen or partly froze
zen
n rain falling from shee
sheett type of clou
oud
ds
c.
Solid pr
precipitation ffa
alling fr
from a deep co
convective c
clloud.
71. Mounta
Mountain
in waves a
are:
re:
a.
The
The wav
waves
es gene
genera
rate
ted
d on
on tthe
he wind
indward
ward side
side of the
the m
mou
ount
ntai
ain
n whe
when
n tthe
here
re is st
stro
rong
ng
wind flow parallel to the ridge.
b.
The
The wav
waves
es gene
genera
rate
ted
d on
on tthe
he le
leew
ewa
ard si
side
de of the
the m
mou
ount
nta
ain whe
hen
n tthe
here
re is a s
str
tron
ong
g
wind flow parallel to the ridge.
c.
The
The wave
ves
s ge
genera
rate
ted
d on the
the le
leeward sid
side of the mou
moun
ntain whe
when tthe
here
re is a
strong wind flow perpendicular to the ridge.
72. Southwest monsoon period in the Indian climatological classification extends from
a.
May to September
b.
June to October
c.
June to September
73. Norwest
Norwesters
ers a
are
re
a.
The We
Western di
disturbances wh
which effect N
No
orthwest IIn
ndia
b.
Seve
Severe
re th
thu
unde
nders
rsttorms
rms whic
which
h occu
ccur o
ove
ver
r N
Nor
orth
thea
east
st Ind
India duri
rin
ng h
hot
ot
weather period
c.
Seve
Severe
re thun
thund
derst
erstor
orms
ms whi
hich
ch occu
occurr over
over Peni
Penin
nsula
sula du
duri
ring
ng ho
hott weat
weath
her per
erio
iod
d
74. Fronts are chara
characteristi
cteristic
c of:
a.
Tropical cyclones
b.
Extra Tropical depressions
c.
Monsoon Depressions
75. In a mature tropical cyclone the Centre and the area 10 - 20 km around it is characterized
by
a.
Moderate winds and heavy rain
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b.
Hurricane ffo
orce wi
winds, ffiierce sq
squalls a
an
nd v
ve
ery h
he
eavy rra
ain
c.
Calm wind, little clouding.
76. The tropical cyclones are most frequent over the Indian seas in the:
a.
Winter months
b.
Post monsoon months
c.
Monsoon months
77. A monsoon depression is located over the head of the Bay of Bengal South of Calcutta, The
most likely surface wind at Calcutta is
a.
Westerly 25 Knots
b.
Easterly 25 Knots
c.
Southerly 25 Knots
78. Dust Storms Usually occur over Northwest India
India during
a.
The post – monsoon period
b.
The winder period
c.
The pre – monsoon period
79. Delhi reports rainfall on a day in the month of January. You would infer that the rainf
rainfall
all is
associated with
a.
A lo
low
w pres
pressu
sure
re are
rea
a movi
moving
ng fro
rom
m East
East to West
West in th
the
e ne
neig
ighb
hbor
orho
hood
od of Delh
Delhi.
i.
b.
c.
A Wes
Weste
tern
rn dist
distur
urb
bance
ance mo
movi
vin
ng fro
from
mW
Wes
estt to
to E
Eas
astt iin
n the
the ne
neig
igh
hborh
borhoo
ood
d o
off Del
Delh
hi.
The
The rai
rain
nfall
fall re
repo
port
rt mi
migh
ghtt be
be w
wro
rong
ng as Delh
Delhii get
gets
s rrai
ainf
nfal
alll o
onl
nly
y in
in tthe
he mo
mons
nsoo
oon
n
season.
80. In the month of July Calcutta reports surface visibility as 500 meters in the
the morning synop.
You would infer the low visibility due to
a.
Fog
b.
Heavy rain
c.
Low cloud
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81. AIREP is the code nam
name
e given to
a.
Aircr
ircra
aft Meteo
teoro
rolo
logi
gic
cal R
Re
eport
ports
s Ori
Origi
gin
nated
ted b
by
y A
Air
ircr
cra
aft in Fli
ligh
ght.
t.
b.
Curr
Curren
entt Weat
Weath
her Repo
Report
rt is tra
ran
nsm
smit
itte
ted
d by AT
ATC
C to the
the Airc
Aircra
rafft in Fl
Flig
ight
ht..
c.
Meteorological Re
Reports Br
Broadcast fo
for A
Aiircraft O
Op
peration.
82. The upper air temperature and dew point observations are taken
taken by
a.
Pibal Station
b.
Radio sonde Station
c.
Rawin Station
83. Flying at a height of 30,00
30,000
0 from Calcutta to Delhi in the month of January you are most
likely to encounter.
a.
Very strong head winds
b.
Very strong tail winds
c.
Moderate southerly winds
84. A constant pr
pressure
essure chart is one on which
which
a.
Lines of constant pressure, called isobars, are drawn
b.
Lines o
off c
co
onstant he
height o
off th
the is
isobaric s
su
urface a
arre dr
drawn
c.
Rout
Routes
es alon
along
g whi
hich
ch an ai
airc
rcra
rafft shou
should
ld fly
fly at co
cons
nsta
tan
nt pre
ress
ssur
ure
e is ro
rout
utes
es
85. SIGMET is ori
originate
ginated
d by
a.
Meteorological Watch Office (MWO)
b.
Air Traffic Control (ATC)
c.
Flight Information Centre (FIC)
86. The therm
thermal
al wind is
a.
The wind that blows because of thermals.
b.
The w
wa
arm wi
wind tth
hat b
bllows do
down th
the hi
hills o
on
n th
the le
leeward s
siide
c.
The
The win
wind
d wh
whic
ich
h mu
must be
be add
adde
ed v
ve
ecto
tori
ria
all
lly
y to
to tth
he G
Geo
eost
stro
roph
phic
ic wind
ind a
att th
the
lower level in order to obtain the Geostrophic wind at the upper level.
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87. Give below are meteorological phenomenon, terms and symbols placed in two groups pick
out the most appropriate matching phenomenon, term of symbol from group B correspond
to each one in group A and write in the blank space provided.
a.
Jet Streams
b.
Visibility < 200 m
……………….
……………….
c.
Stratus
CAT
……………….
d.
Gale
e.
Cb
Mountain waves
……………….
……………….
f.
Rotor
GRADU
……………….
g.
Trend
TAFOR
……………….
h.
Aerodrome current weather report
i.
Pressure reduced to MSL in ISA
……………….
METAR
……………….
j.
Aerodrome forecast
QNH
……………….
88. The strat
stratospher
osphere
e is
a.
A la
layer of
of tth
he a
attmos
osp
pher
ere
e wh
where mos
mostt of
of tth
he we
weather activit
vity o
occ
ccu
urs.
b.
The highest layer of the atmosphere
c.
An up
upper
per a
atm
tmo
osph
spher
eriic lla
ayer cha
chara
rac
cteri
teriz
zed by
by tte
empera
peratture in
inve
ver
rsio
sion and
and
stability
d.
None the above
89. Assuming the water vapour content of the atmosphere to be constant throughout on
a sunny day, the relative humidity will very as follows:
a.
It is maximum in the morning hours, minimum in the aftern
ernoon and
then again rises
b.
It is minimum in the mor
orn
ning, maximum
mum in the aftern
rnoo
oon
n and then
again falls.
c.
Sinc
Since
e
ther
there
e is no chan
chang
ge in the
the water
ater vapo
vapour
ur co
con
ntent
tent of th
the
e atmo
atmosp
sphe
here
re,, th
the
e
relative humidity will also not have any variation during the day.
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90. An air parcel is at a temperature of 30 deg C an
and
d a pressure of 1000 Mb. It is cooled till it
gets saturated without changing the water vapour content of the parcel and its pressure.
The temperature at this stage is observed to be 20 deg C. This
This temperature of 20 deg C is
a.
The potential temperature of the air parcel.
b.
The due point temperature
c.
The wet bulb temperature
91. The air temperature at the surface level is 32 deg C and that
that at 1.5 Km height above the
surface is 33 C as recorded in a particular sounding of the atmosphere. Identity the correct
situation(s) from the following:
a.
The atmospheric layer surface - 1.5 km level is unstable
b.
The layer is stable
c.
The layer is conditionally unstable
d.
The layer is an isothermal layer.
92. A barometer indicates a pressure of about 1000 Mb at a station situated very close mean
sea level. The barometer is taken to a height of 3 Km immediately above, it will indicate a
pressure of around:
a.
5 0 0 Mb
b.
3 0 0 Mb
c.
7 0 0 Mb
93. Gradie
Gradient
nt wind is the wind:
wind:
a.
b.
Which flows parallel to the curved isobars
Which flows parallel to the straight isobars
c.
Which flows a
ac
cro
ros
ss tth
he is
iso
obars fro
from
m h
hiigh press
essure to llo
ow press
essure
against the" pressure gradient.
94. Altostr
Altostratus
atus is:
is:
a.
A low cloud of sheet type
b.
A medium cloud of sheet type
c.
A cloud of a large vertical growth
d.
A high cloud of sheet type
Page 17
Page 18
95. A high p
pressure
ressure area is usually associated with
a.
Fine weather
b.
Thunderstorms
c.
Strong Winds
96. The conditions necessary for the formation of a thunderstorm
thunderstorm area
a.
Steep lapse rate, strong winds
b.
Steep lapse, adequate supply of moisture
c.
Shallow lapse rate, adequate supply of moisture
97. Cold front is normally associ
associated
ated with
a.
Cb clou
oud
ds with fre
req
quent preci
ecipitation in the form of show
showe
ers
b.
Ci, Cs As & St type of clouds & steady precipitation
c.
Fine whether
98. Flying at 25,000 feet from Bombay to Delhi on normal day in July, you would expect
a.
Easterly winds
b.
Westerly winds
c.
Northerly Winds
d.
Southerly Winds
99. During winter season, fog will be more frequent in
a.
Assam
b.
Rajasthan
c.
Bihar
100.
100.
AR
Rad
adio
io So
Sond
nde
e is
is u
used
sed to de
dete
term
rmin
ine
e
a.
The direction and speed of winds at various upper level
b.
The temperature and humidity at various levels
c.
The height of the clouds over the station
Page 18
Page 19
101.
If the altimeter reads aerodrome elevation at ground level then the subscale must have
been set to
a.
QFE
b.
QNE
c.
QNH
102.
102.
SI
SIGM
GMEN
ENT
T is
is iss
issue
ued
d for
for
a.
Severe line squall
b.
Gusty winds
c.
Heavy rains
103.
103.
SP
SPEC
ECII is a wea
weath
ther
er re
repo
port
rt issue
issued
d
a.
Whenever specially requested for
b.
Only when thunderstorm is expected
c.
As soon
soon as the
the s
sp
pecif
ecifie
ied
d c
cri
rite
teri
ria
a of
of a Mete
Meteor
orol
olog
ogic
ical
al co
con
nditi
dition
on is sati
satisf
sfie
ied
d.
104.
104.
Fi
Fill
ll in the
the b
bla
lank
nks
s cho
choosi
osing
ng the
the corre
correct
ct word
words
s
a.
Ai
Airr ca
can hol
hold
d mor
more
em
moi
oist
stur
ure
e iiff iitt is
is ....
....
....
....
....
....
....
....
....
....
.. (C
(Coo
oole
led/
d/ heat
eated)
ed)
b.
Ev
Evap
apor
orat
atio
ion
n take
takes
s plac
place
e ....
......
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
.. (at
(at a
all
ll tim
times
es/d
/dur
urin
ing
g da
day
y on
only
ly))
c.
Heat
Heat is rele
releas
ased
ed in th
the
e pro
proce
cess
ss of ....
......
....
....
....
....
....
....
....
....
....
.... (ev
(evap
apor
orat
atio
ion
n / cond
conden
ensa
sati
tion
on))
d.
Loca
Locall w
win
ind
d whi
which
ch is set
set u
up
p whe
when
n the
the air
air c
coo
oole
led
d by
by con
conta
tact
ct with
with gro
roun
und&
d& st
star
arts
ts
flowing down hill is called .........................
......................... (Anabatic Wind / katabatic Wind)
e.
f.
Slow
Slow do
down
wn ward
ward moti
motion
on or air
air ove
overr lar
large
ge ar
area
ea is call
called
ed ....
......
....
....
....
.. ....
......
....
....
....
....
....
....
....
....
....
....
(Subsidence / Convection)
The
The most
most va
vari
riab
able
le gas
gas in th
the
e at
atmo
mosp
sphe
here
re is ....
......
....
....
....
....
....
....
....
....
....
....
.. (Wat
(Water
er Vapo
Vapour
ur /
Carbon Dioxide).
105.
105.
Gi
Give
ve one
one term
term for
for each
each of tthe
he foll
follow
owin
ing
g:
a.
An instrument used for measuring rainfall.
b.
An instrument used for measuring pressure
c.
An iin
nstrument us
used ffo
or ge
gelling co
correct rru
unway vi
visibility
d.
The a
aiir co
containing m
mo
oisture u
up
p to fu
full ca
capacity ……………….
Page 19
Page 20
e.
106..
106
Form o
off c
clloud th
that c
ca
auses th
thunderstorm …
……
…………………….
Mat
Match
ch the
the foll
followi
owing
ng b
by
y ch
choosi
oosing
ng o
one
ne ffrom
rom A and one from
from B
B::
a.
Norwester
Tamilnadu
b.
Clear Air Turbulence
Convergence
c.
Western disturbances
Jet Stream
d.
NE Monsoon
North Eastern
Parts of India
e.
107.
Upward Motion
What is
a.
ROFOR
b.
TAFOR
c.
NETAR
d.
VOIMET
e.
AIREP
108..
108
NW India
CAV
CAVOK
OK can be used in cu
curren
rrentt weathe
weatherr message
message w
when
hen tthe
he ffollo
ollowin
wing
g cond
conditi
itions
ons
are satisfied
a.
Visibility …………………………………………………..
………………………………………………….. 10KM
b.
No Cloud below ……………..ma and no…………….. 1500
c.
No ……………………………………………
……………………………………………………………
……………… Significant weather
109..
109
Mat
Match
ch the foll
followi
owing
ng in Co
Colum
lumn
n 'A' aga
agains
instt app
approp
ropriat
riate
e entries
entries in Col
Column
umn 'B
'B..
A
B
a.
Thunderstorm
Isohypses
b.
Fog
Vis less than 2000m
c.
Tropical storms
Super cooled water drops
d.
TAF
e.
SIGMET
f.
AIREP
Heavy Hail
First gust
CNS
Page 20
Page 21
g.
Airframe icing
h.
Pressure altitude
i.
PV R
Vertical ascent
j.
Subsidence
Inter
k.
Convergence
Spiral cloud bands
l.
Constant pressure charts
110.
110.
Vis less than 1000 m
Anticycleme
In Indi
India
av
vol
olmet
met broa
broadc
dcast
asts
s ar
are
e made
made by
by
a.
All class I met offices
b.
Met watch offices
c.
Only Bombay & Calcutta met offices.
111..
111
a.
Two hour
The atm
atmosp
osphere
here pressur
pressure
e at a po
point
int may be d
defi
efined
ned as
The
The fo
forc
rce
e exer
exerte
ted
d on a unit
unit are
rea
a due to th
the
e we
weig
igh
ht o
off the
the atmosp
sph
here
above it
b.
Is the force of the atmosphere above the point.
c.
Weight of the atmosphere on a point.
112.
The force on a unit area on the surface of the earth exerted by the weight of
atmosphere, above is called
a.
Atmosphere, pressure
b.
Isobars
c.
Isogonals
113.
113.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
ent.
t.
a.
Atmosphere pressure decrease with ht.
b.
Atmosphere pressure in
increases wi
with ht.
c.
Atmosphere p
prressure remains constant ir
irrespective o
off ht
114..
114
The aim
aim.. Pr
Pressu
essure
re de
decrea
creases
ses with
with ht a
att th
the
e follow
following
ing rat
rate:
e:
a.
1 mb for every 27'
b.
1 mb for every 40'
Page 21
Page 22
c.
1 mb for every 30 mtrs
d.
1 mb for 27'mtrs
e.
1 mb for 30'
115.
i.
The p
prressure de
decreases ra
rapidly with the h
he
eight in
in
a.
Cold air
b.
Ward air
ii.
ii.
116.
116.
Th
The
e pre
press
ssur
ure
e dec
decre
reas
ases
es le
less
ss rapi
rapidl
dly
y wi
with
th th
the
e ht
ht.. In :
a.
Cold air
b.
Ward air
The
The low
lowest
est te
temp
mp,, in Trop
Tropop
opau
ause
se ex
exis
ists
ts over
over::
a.
Pole
b.
45 deg lat
c.
Equator
117.
117.
In a stand
standar
ard
d at
atmo
mosp
sphe
here
re M
MSL
SL pres
pressur
sure
e is
a.
992 mbs
b.
1003.2 mbs
c.
1013.2 mbs
d.
993. 2 mbs
118.
118.
In a st
stan
anda
dard
rd atmo
atmosp
sphe
here
re M
MSL
SL temp
temp is
is :
a.
10deg C
b.
5 deg C
c.
50 deg C
d.
59 deg C
119.
119.
In a s
sta
tand
ndar
ard
d at
atmo
mosp
sphe
here
re tthe
he llap
apse
se ra
rate
te iis
s
a.
5.6 deg C/km
b.
6.5 deg C/km
Page 22
Page 23
c.
1.97 deg C/1 000'
d.
2.98 deg C/1000'
120..
120
The rrate
ate a
att wh
which
ich a
an
n asc
ascend
ending
ing p
parce
arcell of dry
dry air c
cools
ools iis
s cal
called
led..
a.
SALR
b.
DALR
121.
D.A.L.R. Means :
a.
The rate at which an ascending parcel of air cools
b.
The rate at which temp falls with it
c.
The rra
ate at wh
which ascending parcel of saturated air co
cools.
122..
122
a.
b.
123.
The ra
rate
te at wh
which
ich as a
ascen
scendin
ding
g parcel
parcel of Satu
Saturat
rated
ed air
air cool
cools
s is cal
called
led..
SALR
DALR
S.A.L.R mea
ean
ns:
a.
The rate at which an ascending parcel of dry air cools.
b.
The rate at which temp falls with ht.
c.
The rate at which ascending parcel of saturated air cools.
124.
The D.A.L.R. is
a.
5.4 deg. F, 1000'
b.
2.0 deg C/1000'
c.
2.7 deg C/ 10001
d.
1.5 deg C/10001
e.
5 deg C/Km
f.
10deg C/Km
125.
125.
a.
Th
The
e dry
dry air
air is
is sa
said
id to be
be stab
stable
le if
if
ELR > DALR
Page 23
Page 24
b.
ELR = DALR
c.
ELR > DALR
d.
DALR > SALR
126.
126.
The
The sa
satu
tura
rated
ted air
air is said
said to
to be stab
stable
le iif:
f:
a.
ELR < SALR
b.
ELR > DALR
c.
ELR = DALR
d.
ELR > SALR
127.
127.
The
The dr
dry
y air
air is
is sa
said
id to be
be insta
instabl
ble
e if
if::
a.
DALR < ELR
b.
DALR = SALR
c.
DALR = ELR
d.
DALR < SALR
128.
128.
The
The sa
satu
tura
rated
ted air
air is said
said to
to be in
inst
stab
able
le if
if
a.
ELR = SALR
b.
ELR < SALR
c.
ELR > SALR
129..
129
If th
the
e value
value of E
ELR
LR is betw
between
een DALR
DALR 8,
8, SALR
SALR the a
atmo
tmosph
sphere
ere sa
said
id to b
be:
e:
a.
Stable
b.
Unstable
c.
Conditionally stable
130.
If the aim. Temp, on the ground is 10 C. What will be the temp, of ascending parcel of
dry air after reaching 5000’
a.
0 deg.
b.
– 0.5 deg.
c.
-2.5 deg.
Page 24
Page 25
d.
131.
05 deg.
If th
the
e aim.
aim. Temp,
Temp, on the ground
ground is 10 C. W
What
hat will
will b
be
e the temp o
of-asc
f-ascending
ending parcel of
dry air after reaching 5000'
a.
6 deg.
b.
- 06 deg
c.
- 2.5 deg
d.
2.5 deg
132.
If th
the
e ground
ground level
level tem
temp
p on 90 F. What will be the
the temp of as
ascendin
cending
g dry parcel of ai
airr
after reaching 10000.
a.
36 C
b.
60 F
c.
70 F
133.
If the atm. Temp on the gro
ground
und level
level is 15
15 C, what
what w
will
ill be the tem
temp
p of ascendin
ascending
g parc
parcel1
el1
of saturated air after reaching 5000
a.
7. 5 C
b.
-7.5 C
c.
0 deg
d.
5C
134..
134
If th
the
e air temp,
temp, on the
the gr
groun
ound
d 10 C, what
what will
will be tthe
he temp
temp of as
ascen
cendin
ding
g parcel
parcel
a.
– 25 C
b.
– 60 C
c.
– 15 C
135.
If th
the
e ground
ground level
level tem
temp
p is 90 F. what will be the
the temp of as
ascendin
cending
g sat
saturated
urated parcel of
air after reaching 10,000.
a.
63 F
b.
0 deg
c.
36 F
Page 25
Page 26
136.
136.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
Dry air is lighter than moisture.
b.
Dry air is heavier than moisture
c.
Dry air has greater density than moisture
d.
Moist air has greater density than dry air.
e.
Moist and dry air have same density.
137.
The close relationship
relationship betwe
between
en height
height and pressure is ma
made
de use
use in constru
construction
ction of
a.
Altimeter
b.
ASI
c.
VSI
138.
138.
Alti
Altimet
meter
er alw
alway
ays
s me
meas
asur
ure
e the
the heig
height
ht o
off a
a.
AMSL
b.
Above datum level of 1013.2 mbs
c.
Above datum level at which its sub-scale has been set to
139.
Two a
a/c
/c fl
flying
ying at the
the same indicate
indicate al
altitud
titude
e with their sub-s
sub-scale
cale a
altimete
ltimeterr set to 1013.2
1013.2
mbs. One is flying over cold air mass and other on warm air mass which of the two has
greater altitude.
a.
AC flying over warm air mass will have greater altitude.
b.
AC flying ov
over co
cold ai
air m
ma
ass ha
have gr
greater al
altitude.
140.
Two a
aircraf
ircraftt with
with their
their sub
sub-scale
-scale of al
altimete
timeterr set to be same p
pressure
ressure 10.1
10.13.2
3.2 mbs
mbs are
flying at the same actual height. One is flying over cold mass other is flying over warm
air mass
a.
Ac over cold air mass has greater indicated altitude.
b.
Ac over warm mass has greater indicated altitude.
141..
141
AC fflyi
lying
ng from
from high
high to lo
low
w pr
pressu
essure
re ar
area,
ea, its alt,
alt, wil
willl rea
read
d
a.
Too high
b.
Too low
Page 26
Page 27
c.
142..
142
Same height
AC fflyi
lying
ng from
from low to high
high pre
pressur
ssure,
e, alti
altitud
tude,
e, read
reads
s
a.
Too high
b.
Too low
c.
Same height
143.
143.
An a
alt
ltim
imete
eterr of an a
a/c
/c und
under
er rea
reads
ds - when
when
a.
It flies from high to low pressure.
b.
It flies from low to high pressure
144.
144.
Aa
alt
ltime
imete
terr of
of an
an A
AC
Co
ove
verr rread
eads
s - when
when
a.
It flies from high to low pressure
b.
It flies from low to high pressure.
145.
145.
An a
alt
ltim
imete
eterr of an air
aircra
craft
ft read
reads
s too h
hig
igh,
h, if
if
a.
AC flies over warmer air mass.
b.
AC flies over colder air mass
146.
146.
An alti
altimet
meter
er of an AC reads
reads too
too low
low if
a.
AC flies over warmer air mass.
b.
AC flies over colder air mass.
147..
147
If an aircraf
aircraftt flie
flies
s ov
over
er w
warme
armerr air
air ma
mass,
ss, its alt
a.
Over reads
b.
Under reads
148.
148.
If an a/c
a/c ffli
lies
es ove
overr cold
colder
er mas
mass,
s, its
its al
altt
a.
Over reads
b.
Under reads
149..
149
Whe
When
n QFE is
is set a
an
n alt
altimet
imeter,
er, iitt reads
reads on lland
anding
ing at
at an a
aerod
erodrom
rome
e
Page 27
Page 28
a.
Elevation of aerodrome
b.
Zero height
150..
150
The atm
atmosp
osphere
here pressur
pressure
e at an a
aerod
erodrome
rome at any
any time
time is
a.
QFE
b.
QNE
c.
QFF
151.
The atmosp
atmosphere
here p
pressure
ressure at the
the a
aerodrome
erodrome reduced to M
MSL
SL taking
taking into consideration
consideration
that ISA atmospheric condition exists between station and
a.
QFE
b.
QNH
c.
QFF
152.
The atmosp
atmospheric
heric pressure
pressure at the aerodrome
aerodrome reduced
reduced to M
MSL
SL taking
taking into consideration
consideration
that ISA atmospheric condition exists between station and sea level is
a.
QFE
b.
QNH
c.
QFE
153..
153
An al
altit
titude
ude in IISA
SA at w
whic
hich
h the p
preva
revaili
iling
ng densi
density
ty ex
exists
ists is
is call
called:
ed:
a.
Pressure altitude
b.
Density altitude
c.
Flight level
154.
An al
altitude
titude in st
standar
andard
d atm
atmosphere
osphere,, at which the prevaili
prevailing
ng de
density
nsity exists is cal
called
led
a.
Pressure altitude
b.
Density altitude
c.
Flight level
155..
155
Sur
Surfac
face
e of consta
constant
nt atm
atmosp
ospheri
heric
cp
press
ressure
ure which
which are related
related to s
stan
tandar
dard
d atmosp
atmospheri
heric
c
pressure of 1013.2 mbs and are separated by specific pressure interval is called.
Page 28
Page 29
a.
Pressure altitude
b.
Density altitude
c.
Flight level
156.
156.
Press
Pressure
ure al
alti
titu
tude
de m
may
ay be defi
define
ned
d as:
as:
a.
An altit
ltitud
ude
e in
in the
the stan
stand,
d, atmo
atmosp
sphe
here
re at whic
which
h iis
s pre
preva
vail
ilin
ing
g p
pre
ress
ssur
ure
eo
occ
ccur
urs.
s.
b.
An altit
ltitud
ude
e in
in the
the stan
stand,
d, atmo
atmosp
sphe
here
re a! wh
whic
ich
h tthe
he prev
prevai
aili
ling
ng pres
pressu
sure
re occu
occurs
rs..
c.
An altit
ltitud
ude
e iin
n the
the sta
stan
nd, atmo
atmosp
sphe
here
re at whic
which
h the
the p
pre
reva
vail
ilin
ing
g d
den
ensi
sity
ty occu
occurs
rs..
157.
157.
De
Dens
nsit
ity
y alt
altit
itud
ude
em
may
ay be de
defi
fine
ned
d as
as :
a.
An altit
ltitud
ude
e iin
n a sta
stand
nd,, atmos
tmosph
pher
ere
e a
att wh
whic
ich
h the
the p
pre
reva
vail
ilin
ing
g p
pre
ress
ssur
ure
e o
occ
ccur
urs.
s.
b.
The
The alt
altit
itu
ude in
in the
the st
sta
and,
nd, at
atmosphe
sphere
re at w
whi
hic
ch th
the pre
preva
vail
ilin
ing
g de
densit
sity
occurs
c.
158.
Surf
Surfac
ace
eo
off c
con
onst
sta
ant
nt.. P
Pre
ress
ssur
ure
e wh
whic
ich
h are
are re
rela
late
ted
d tto
os
sta
tand
nda
ard datu
datum
mo
off 101
101 3.2
3.2
mbs.
An altitude
altitude in the vicinit
vicinity
y of an aerodrom
aerodrome
e at or below which the vertical
vertical positi
position
on of an
aircraft is controlled with reference to QNH is
a.
Transition altitude
b.
Transition level
c.
Transition layer
159..
159
The low
lowest
est level
level above
above tra
transi
nsition
tion alt
altitu
itude
de iis
s calle
called
d
a.
Transition altitude
b.
Transition layer
c.
Transition layer
160..
160
A air sp
space
ace be
betwe
tween
en transi
transition
tion a
alti
ltitud
tude
e and tr
trans
ansiti
ition
on le
level
vel is calle
called
d
a.
Transition altitude
b.
Transition layer
c.
Transition layer
Page 29
Page 30
161.
161.
a.
The
The tra
trans
nsit
ition
ion alti
altitu
tude
de may
may b
be
e de
defi
fine
ned
d as
The
The alt
altit
itud
ude
e iin
n the
the vi
vici
cini
nity
ty of an aero
aerodr
drom
ome,
e, at or
or bel
below
ow wh
whic
ich
h tth
he ver
verti
tica
call
position of a is controlled with reference to QNH
b.
The llo
owest flight lle
evel above th
the ttrransition altitude.
c.
The air sp
spa
ace between
een tra
ran
nsition altitude and tran
ransit
itiion level
vel
162.
162.
a.
The
The tr
tran
ansi
siti
tion
on llev
evel
el m
may
ay be def
defin
ined
ed as
as
The al
alt. In
In th
the vi
vicin
iniity of
of an
an aer
aero
odrome
ome a
att o
orr be
below w
wh
hich the ver
verttical
position, of an is controlled with reference to QNH.
b.
The lo
lowest ffllight lle
evel ov
over ttrransition al
altitude.
c.
The
The air space
pace betwe
tween tra
ran
nsi
sittion
ion alt
ltit
itu
ude an
and
d tra
ran
nsit
sition
ion le
lev
vel.
el.
163.
163.
The
The bre
bread
adth
th o
off tra
trans
nsit
ition
ion lay
layer
er is alw
alway
ays:
s:
a.
1000’
b.
1500’
c.
500’
164.
When the visibili
visibility
ty is reduced to less than 2000 meters but n
not
ot less
less tha
than
n 1000
1000 met
meters
ers
due to presence of dust particles in the atmosphere is called.
a.
Mist
b.
Haze
c.
Fog
165.
When the visibili
visibility
ty is reduced to less than 2000 meters but n
not
ot less
less tha
than
n 1000
1000 met
meters
ers
due to presence of moisture in the atmosphere is called.
a.
Mist
b.
Haze
c.
Fog
166.
When the visibili
visibility
ty is reduced to less than 1000 meters in th
the
e atmosphere
atmosphere due tto
o the
presence of water particles:
a.
Mist
b.
Haze
Page 30
Page 31
c.
167.
167.
a.
Fog
Ha
Haze
ze ma
may
yb
be
ed
def
efin
ined
ed as:
as:
When
hen the visi
visib
bil
ilit
ity
y is re
red
duced
ced less
less than
han 2000 meters
ters bu
butt not less
less
than1100 meters due to presence of water particulars in the atmosphere.
b.
When
When vi
visi
sibi
bili
lity
ty is re
redu
duce
ced
d to le
less
ss than
than 2000
000 me
metters
ers b
but
ut no
nott les
less
s tha
than
n 1
100
000
0M
due to presence of dust particles in the atm
c.
When
When vi
visi
sibi
bili
lity
ty is re
redu
duce
ced
d les
less
s tth
han 1000
1000 m due
due to pres
presen
ence
ce of wate
waterr p
par
arti
ticl
cles
es in
the atm.
168.
168.
a.
Mist
Mist ma
may
yb
be
ed
def
efin
ined
ed as :
When
hen vis
visiibi
bili
litty is
is r
re
educed to le
less than
han 2
20
000 m but not lle
ess tha
than 1
10
000 m
due to presence of water particles in the atm.
b.
When
When vi
visi
sibi
bili
lity
ty is re
redu
duce
ced
d to
to lles
ess
s tha
than
n 200
2000
0 m but no
nott les
less
s th
than 100
1000 m due
due to
to
presence of dust particles in the atm.
c.
When
When vi
visi
sibi
bili
lity
ty is re
redu
duce
ced
d to
to lles
ess
s tha
than
n 100
1000
0 m due to pres
presen
ence
ce of wate
waterr p
par
arti
ticl
cles
es
the atm.
169.
169.
a.
Fo
Fog
g may
may be def
efin
ined
ed as
When
When vi
visi
sibi
bili
lity
ty is re
redu
duce
ced
d to 2000
000 m b
but
ut not
not less
less than
than 100
1000 m due
due lo
lo p
pre
rese
sen
nce
of water particles in the atmosphere.
b.
When visibility is reduced to 2000 meters.
c.
When
hen vis
visiibi
bili
litty is
is r
re
educed to le
less than
han 1
10
000 mete
eters due tto
o p
pre
res
senc
ence o
off
water particles in the atmosphere.
170..
170
R.V
R.V.R.
.R. is alwa
always
ys take
taken
n when
when visibi
visibilit
lity
y falls
falls below:
below:
a.
2000 meters
b.
1000 meters
c.
1500 meters
171.
171.
Ra
Radi
dia
ation
tion fog forms
orms
a.
Over land
b.
Over sea
Page 31
Page 32
c.
172.
172.
May from during day
The
The for
forma
mati
tion
on of rad
radia
iati
tion
on ffog
og depe
depend
nds
s upo
upon
n
a.
Heating of the earth during day.
b.
Radiation cooling of earth al night.
173.
173.
For forma
formati
tion
on of Ra
Radi
diat
ation
ion Fo
Fog.
g.
a.
There should be sufficient moist in atm.
b.
Sky should be cloudy
c.
Sky should be strong wind
d.
There should be strong wind
e.
There should be light wind
174..
174
Rad
Radiat
iation
ion Fog forms
forms ov
over
er Nort
Northen
hen Part
Part of India
India d
durin
uring
g
a.
May to June
b.
Jan to March
c.
Oct to Nov
175.
a.
Fill in
in tth
he bl
blanks
The radiation for activity increases after the passage of ………….. WD
b.
Radiation for is essentially a ………………. Phenomena WINTER
c.
The radiation fog forms over ……………. LAND
d.
Radiation for forms at …………. Only SUNRISE
e.
The advec
ecttion for for
orm
ms due to hori
riz
zontal mov
ove
ement
ent of air ………..
176.
176.
Ad
Adve
vect
ctio
ion
n ffog
og form
forms:
s:
a.
During Night only.
b.
During day time only.
c.
During any time of day or night.
177..
177
The es
essen
sentia
tiall conditi
conditions
ons of tthe
he for
format
mation
ion of
of CB cl
cloud
ouds
s or thunde
thunderr stor
storm
m are
Page 32
Page 33
a.
Steep lapse rate
b.
Lapse rate may be below normal
c.
Inverted lapse rate
d.
Adequate moisture
e.
Tr
Trig
igge
ger
r act
actio
ion
n to the ra
rais
ise
e the moist
ist air in the leve
levell o
off in
insta
stabil
ilit
ity
y.
178..
178
The trig
trigger
ger a
acti
ction
on ma
may
y be ttake
ake p
place
lace by ffoll
ollowi
owing
ng p
proc
rocess.
ess.
a.
Clear night sky no wind
b.
Orographic lifting
c.
Solar heating during day
d.
Divergence as
associated with high pr
pressure sy
system
e.
Convergence associated with low pressure system
f.
Frontal lifting
179.
a.
Severe icing occurs in a CB clouds
b.
CB clouds are not dangerous.
c.
There are severe up and down draughts in CB clouds.
d.
Flying condition in CB clouds are smooth.
180.
180.
The
The li
life
fe cyc
cycle
le o
off CB cl
clou
ouds
ds con
consis
sisti
ting
ng of
of
a.
2 st
stages c
co
omprising fo
formation, mature an
and dissipating
b.
Only formation stage
c.
Only formative and dissipating stages
181.
181.
Th
The
e llif
ife
e cyc
cycle
le of CB is us
usua
uall
lly
y
a.
30 to 45 min
b.
2 to 3 hrs
c.
Only 1 hrs
Page 33
Page 34
182.
182.
The
The ac
acti
tivit
vity
y of
of CB
CB c
clo
loud
ud iis
s se
sever
verest
est for
for
a.
2 hrs
b.
30 to 45 min
c.
3 to 4 hrs
183..
183
Low a
amorp
morphou
hous
s cloud
cloud layer
layer of
of da
dark
rk g
gray
ray in
in colour
colour is
is called
called
a.
AS
b.
NS
c.
ST
d.
CB
e.
CU
184..
184
A uni
unifor
form
m lay
layer
er of clou
cloud
d resembl
resembling
ing ffog
og bu
butt not rrest
esting
ing on
on the g
grou
round
nd
a.
AS
b.
MS
c.
ST
d.
CB
e.
CE
185.
Icing oc
occurs in
in
a.
CI
b.
CS
c.
NS
d.
AC
e.
CE
f.
CB
186.
The cl
cloud,
oud, which is composed
composed o
off ice crystals
crystals and is wh
white
ite in colour having
having fea
feather
ther llike
ike
appearance.
a.
CI
b.
CS
Page 34
Page 35
c.
NS
d.
AC
187.
187.
The
The c
con
onden
densa
sati
tion
ons
s ttra
rail
il oc
occur
curs
s iin
n
a.
CI
b.
CS
c.
AO
d.
ST
188.
188.
Dr
Driz
izzl
zle
e occu
occurs
rs wit
ith
h
a.
CI
b.
CS
c.
AO
d.
ST
189.
189.
Dr
Driz
izzl
zle
e occu
occurs
rs wit
ith
h
a.
AS
b.
CS
c.
AO
d.
ST
190.
190.
Sh
Show
ower
ers
s occu
occurs
rs wit
ith
h
a.
CU
b.
CB
c.
AB
d.
AC
191.
191.
The
The mos
mostt da
dang
ngero
erous
us clou
clouds
ds for
for a
avi
viat
atio
ion
n ar
are
e
a.
CB
b.
CU
c.
ST
Page 35
Page 36
d.
192.
AC
The air m
mass
ass w
which
hich originated
originated from land areas located in tthe
he lo
lower
wer latitu
latitude
de are
are
a.
Warm & dry
b.
Ward & Moist
c.
Cold & Dry
d.
Cold & Moist
193..
193
The a
air
ir mas
mass
s which
which ori
origin
ginate
ates
s from lland
and area
area locat
located
ed in lo
lower
wer llat
at is ca
calle
lled.
d.
a.
Polar Maritime
b.
Polar Continental
c.
Tropical maritime
d.
Tropical Continental
e.
Equatorial maritime
194..
194
The a
air
ir ma
mass
ss wh
which
ich orig
origina
inates
tes ffrom
rom se
sea
a area
area locate
located
d in lo
lower
wer L
Lai.
ai. is
is
a.
Warm & Dry
b.
Ward & Moist
c.
Cold & Dry
d.
Cold and Moist
195..
195
The a
air
ir mas
masses
ses which
which o
origi
riginat
nates
es fro
from
m sea area
area loc
locate
ated
d in low L
Lat
at is calle
called
d
a.
Polar maritime
b.
Polar continental
c.
Tropical maritime
d.
Tropical continental
e.
Equatorial maritime
196..
196
The a
air
ir mas
mass
s which
which ori
origin
ginate
ated
d fro
from
m lan
land
d area loca
located
ted in p
pola
olarr region.
region.
a.
Warm & Dry
b.
Ward & Moist
Page 36
Page 37
c.
Cold & Dry
d.
Cold and Moist
197..
197
The a
air
ir mas
mass,
s, which
which orig
origina
inates
tes from
from land
land ar
area
ea locat
located
ed in po
polar
lar re
regio
gion.
n.
a.
Polar maritime
b.
Polar continental
c.
Tropical maritime
d.
Tropical continental
e.
Equatorial maritime
198..
198
The a
air
ir ma
mass
ss wh
which
ich orig
origina
inates
tes ffrom
rom se
sea
a area
area locate
located
d in po
polar
lar regi
region
on
a.
Warm & Dry
b.
Ward & Moist
c.
Cold & Dry
d.
Cold and Moist
199..
199
The a
air
ir mas
mass,
s, which
which orig
origina
inates
tes from
from sea
sea area llocat
ocated
ed in pola
polarr region.
region.
a.
Polar maritime
b.
Polar continental
c.
Tropical continental
d.
Tropical maritime
e.
Equatorial maritime
200..
200
The ffron
rontt whe
where
re the ward
ward a
air
ir mas
mass
s over takes
takes the
the cold a
air
ir mas
mass,
s, it is call
called
ed
a.
Warm front
b.
Cold front
201..
201
The ffron
rontt whe
where
re cold
cold air mass o
over
ver ttake
akes
s the warm
warm a
air
ir ma
mass
ss it iis
s cal
called
led
a.
Warm front
b.
Cold front
Page 37
Page 38
202.
At warm front
a.
Ward air over takes the cold air
b.
Cold air over takes the warm air
203.
NS clouds ffo
orm
a.
At cold front
b.
At ward front
204.
204.
The
The co
cond
ndit
itio
ions
ns are
are a
alw
lway
ays
s unst
unstab
able
le a
att
a.
Cold front
b.
Warm front
205.
205.
Preci
Precipi
pita
tati
tion
on o
occu
ccurs
rs 200
200 mil
miles
es ahe
ahead
ad of
of
a.
Warm front
b.
Cold front
206.
206.
Pr
Prec
ecip
ipit
itat
atio
ion
n occu
occurs
rs ahe
ahead
ad o
off
a.
Warm Front
b.
Cold Front
207.
Precipi
Precipitatio
tation
n occurs
occurs over a belt
belt of 20-30
20-30 mile
miles,
s, wh
which
ich ex
extend
tend on both
both side
side of front
a.
Cold front
b.
Warm front
208.
208.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
At cold front thunder storm occurs
b.
At warm front thunder storm occurs
209.
209.
CB cl
clou
ouds
ds occu
occurs
rs in
a.
Cold front
b.
Warm front
Page 38
Page 39
210.
210.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
Cold front may move as line squall.
b.
Warm front may move as line squall
211.
The ra
ratio
tio be
between
tween the a
amount
mount of water
water vap
vapour
our present
present in
in th
the
e given sample of ai
airr to the
amount of water vapour that this sample of air can hold at the same temp, is
a.
Humidity
b.
Relative Humidity
c.
Dew point
212.
The ttemp
emp in which a given
given sam
sample
ple of air be
be coole
cooled
d at const. Pressure
Pressure and const water
Vapor, contents in order to become saturated in :
a.
Wet bulb temp
b.
Dry bulb temp
c.
Dew point
d.
Rel. Humidity
213..
213
Lin
Lines
es drawn
drawn through
through places
places o
off equal
equal pressure
pressure is know
known
n as:
as:
a.
Isobars
b.
Isotherms
c.
Isogonal
d.
Isoclinals
214..
214
Lin
Lines
es drawn
drawn though
though plac
place
e having
having equa
equall temper
temperatu
ature
re is c
call
alled.
ed.
a.
Isobars
b.
Isotherms
c.
Isogonal
d.
Isoclinals
215.
Buy's Bellet law states
states that if an
an obse
observer
rver st
stands
ands with his b
back
ack tto
o the wind in N
hemisphere.
a.
Low exists to his left
Page 39
Page 40
b.
Low experts to his right
c.
High experts to his right
d.
High experts to his left.
216..
216
If an obs
observe
erverr stands
stands w
with
ith his
his ba
back
ck to the
the wind
wind in S-H
S-Hemis
emisphe
phere.
re.
a.
Low experts to his left
b.
Low experts to his right
c.
High experts to his right
d.
High experts to his left.
217..
217
If iin
n N-Hemi
N-Hemisph
sphere
ere a
a/c
/c fi
files
les from
from H to L it
it will
will ex
exper
perien
ience
ce
a.
‘S’ drift
b.
‘P’ Drift
218..
218
If a
an
n a flie
flies
s in S hemisph
hemisphere
ere ffrom
rom H to L it
it will
will ex
experi
perienc
ence
e
a.
‘S’ drift
b.
‘P’ Drift
219..
219
If a
an
n N-He
N-Hemisp
misphere
here fli
flies
es from
from L to H, it
it will
will e
expe
xperien
rience
ce
a.
‘S’ drift
b.
‘P’ Drift
220..
220
If a
an
n ac in
in SS-Hem
Hemisp
isphere
here fli
flies
es from
from L tto
o H, II will
will e
expe
xperien
rience.
ce.
a.
‘S’ drift
b.
‘P’ Drift
221.
221.
Ka
Kata
tab
batic
atic w
win
inds
ds oc
occu
curr
a.
During day only
b.
At any time of day or night
c.
At night only.
222.
222.
An
Anab
abat
atic
ic win
inds
ds oc
occu
curr
Page 40
Page 41
a.
During day only
b.
At any time of day or night
c.
At night only
223.
223.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
ent.
t.
a.
Anabatic wind is stronger than katabatic
b.
Katabatic wind is stronger than anabatic
c.
Katabatic w
wiind o
oc
ccurs due 10
10 d
do
own wa
ward mo
moveme
men
nts of
of a
aiir a
allong v
va
alley
d.
Katabatic w
wiind oc
occ
curs due tto
o up
upward mov
moveme
ement of air al
along valley
e.
Anabatic wind occurs due to downward movement of air along valley
224..
224
The win
wind
d that
that b
blow
lows
s fr
from
om sea
sea to lland
and during
during day (evenin
(evening)
g)
a.
Sea breeze
b.
Land breeze
225..
225
The win
wind
d that
that b
blow
lows
s fr
from
om land
land to sea
sea d
durin
uring
g da
day
y night
night
a.
Sea breeze
b.
Land breeze
226.
226.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
Sea breeze is stronger than land breeze
b.
Land breeze is stronger than sea breeze
227.
227.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
The wind blow clock around a low in a N – Hemisphere
b.
The wind blow clockwise around a low in a S – H
He
emisphere
c.
The w
wiind blow anti cl
clockwise a
arround a low in a N – Hemisphere
d.
The wind blow anti clock
ckw
wise around a low in a S – Hem
emiisphere
228.
228.
a.
Th
The
e dee
deep
p low
low is know
known
na
as
s
Cyclone
Page 41
Page 42
b.
Depression
c.
Trough
d.
Ridge
229.
229.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
Trough has a frontal characteristics
b.
The axis of trough is known on line of discontinuity.
c.
After crossing the axis of trough winds veer.
d.
After crossing the axis of trouble winds back
230.
230.
Th
The
e hig
high
h pre
press
ssur
ure
e iis
s kno
known
wn as
a.
Anticyclone
b.
Trough
c.
Col
231.
231.
No
Norm
rmal
ally
ly ffai
airr weat
weathe
herr is asso
associa
ciated
ted wi
with
th
a.
Low
b.
High
232.
232.
Ba
Bad
d weat
weathe
herr is asso
associa
ciated
ted wi
with
th
a.
Low
b.
High
233.
233.
A re
regi
gion
on betw
between
een two
two hi
high
ghs
s an
and
d tw
two
o is k
kno
now
w as
a.
Trough
b.
Ridge
c.
Col
234.
234.
Ab
bad
ad we
weat
athe
herr m
may
ay be assoc
associa
iate
ted
d wit
with
h
a.
High
b.
Low
Page 42
Page 43
c.
235.
Col
The resultant wind that blows under the influence of pressure gradient and geostrophic
force and cyclosetrophic force due curvature of isobars is called
a.
Gradient Wind
b.
Geostrophic Wind
236.
236.
a.
Ge
Geos
ostr
trop
ophi
hic
c wind
ind is
The
The res
resul
ulta
tant
nt wind
wind that
that blow
blows
su
un
nder
der tthe
he infl
influe
uenc
nce
eo
off pre
press
ssur
ure
ea
and
nd Geos
Geostr
trop
ophi
hic
c
force
b.
The
The re
resu
sult
lta
ant wind
wind that
that blow
blows
s unde
underr the
the infl
influe
uenc
nce
e of pres
pressu
sure
re,, grad
gradie
ient
nt
Geostrophic force and cyclostrophic force due curvature of isobars.
237.
237.
a.
b.
Ge
Geos
ostr
trop
ophi
hic
c wind
ind is
The rre
esu
sulltant wi
wind tth
hat b
bllows un
under in
influe
luence o
off pr
pressu
ssure, gradient
ent
and geostrophic force.
The
The re
resu
sult
ltin
ing
g wind
ind that
that blow
lows un
und
der the
the inf
influen
luence
ce of pre
ress
ssur
ure
e grad
gradie
ien
nt
and geostrophic force and cyclostrophic force due curvature of isobars.
238.
238.
Un
Unit
its
s use
used
d fo
forr mea
measu
surin
ring
g alms,
alms, pre
pressu
ssure
re are:
are:
a.
Lbs / inch
b.
MBs
c.
Inches of Igs
d.
Dynes/Sec/Seo
239.
239.
Un
Unit
its
su
used
sed for
for m
mea
easu
surin
ring
g vis
visib
ibil
ilit
ity
y
a.
NM
b.
SM
c.
Kilometers / meters
d.
Feet
240.
240.
a.
Th
The
e clou
cloud
d bas
base
e iis
s rrep
epor
orte
ted
d in
in
Meters
Page 43
Page 44
b.
Feet
c.
Kilometers
d.
Miles
241.
241.
Ma
Mark
rk th
the
ec
cor
orre
rect
ct st
stat
atem
emen
entt
a.
DMO's maintain round the clock watch.
b.
MMO's maintain round the clock watch
c.
SMO's can provid
vide rou
outte fore
rec
cast without prio
rior informa
rmation.
d.
DMO's maintain watch down to dusk.
242..
242
Dur
During
ing tthe
he month
month o
off Jan
Jan-Fe
-Feb
b (wind
(winder
er month
month)) rainfa
rainfall
ll occurs
occurs
a.
Over Southern tip of India (Central part of India)
b.
Radiation Fog occurs in Southern part of country
c.
In Bengal & Bihar
243.
243.
Du
Duri
ring
ng th
the
e mon
month
th of JanJan-Fe
Feb
b
a.
Radiation Fog occurs ov
over N
No
orthern & Central p
pa
art o
off In
India
b.
Radiation Fog occurs in Southern part of country
c.
Activity of Radiation Fog increases after the passage of WD in
northern India
244.
244.
Low h
hum
umid
idit
ity
y & temp
temp is th
the
e charac
characte
teri
risti
stics
cs of
a.
Winter months
b.
Hot weather
c.
Monsoon
d.
Post Monsoon
245.
Hot we
weather iis
s
a.
Jan - Feb
b.
March - May
c.
June - Sep
Page 44
Page 45
d.
246.
246.
Oct. Nov. & Dec.
Du
Duri
ring
ng ho
hott weath
eather
er
a.
WD cause T IS or dust storm over Punjab & Raj
b.
No WD occur in N-Parts of country
c.
Track of WD react Northwards a
as
s the se
season advances
d.
The track of WD is Southern most in March
247.
247.
No
Norw
rwes
este
ters
rs occu
occurr duri
during
ng
a.
Jan - Feb
b.
March - May
c.
June - Sep
d.
Oct. - Dec.
248.
248.
No
Norw
rwes
este
ters
rs occu
occurr duri
during
ng
a.
Winter months
b.
Hot weather
c.
Monsoon
d.
Post Monsoon
249.
249.
No
Norw
rwes
este
ters
rs oc
occu
curr ove
overr
a.
Northern India
b.
Southern India
c.
Central Part of the Country
d.
Bengal and Bihar, Orissa and Assam
250.
250.
Du
Duri
ring
ng ho
hott wea
weath
ther
er T
TRS
RS may
may o
occu
ccurr over
over
a.
Madras
b.
Ocean Plato
c.
Southern tip of India
d.
Bay of Bengal
Page 45
Page 46
251.
251.
TR
TRS
S o
occ
ccur
urs
s ove
overr Ind
India
ia se
seas
as
a.
Equatorial Region
b.
10-14deg N
c.
5 - 8 deg N
252.
Norwesters a
arre
a.
Weaker thunder storms
b.
Violent thunder storms
c.
Similar to cyclones but less active
d.
The d
deg
egre
ree
e of
of av
aviation ha
hazards in
in tth
he N
No
orwesters
ers, is
is h
hiigher than in
in a
cyclone
253.
253.
No
Norw
rwes
este
ters
rs no
norm
rmal
ally
ly occur
occur duri
during
ng
a.
Morning hours
b.
Afternoon
c.
Night hours
254.
254.
The
The a
aver
verag
age
e lif
life
eo
off a Norw
Norwes
ester
ters
s is
is
a.
8-9 hours
b.
2-3 hours
c.
7 hours
255.
255.
Mo
Mons
nsoo
oon
np
per
erio
iod
d occ
occur
urs
s
a.
Jan to Feb
b.
March to May
c.
Jun to Sep
d.
Oct to Dec
256..
256
The rai
rainfa
nfall
ll over
over Ind
India
ia during
during mon
monsoon
soon depend
depends
s on
a.
Higher pressure in Afghanistan
b.
Depression that from Bay of Bengal
Page 46
Page 47
c.
257..
257
The position of the axis of trough
The rrain
ainfal
falll all o
over
ver the
the cou
countr
ntry
y occ
occur
ur durin
during
g the mons
monsoon
oon when
when
a.
Axis of trough of low pressure is in the southern — most
b.
Axis of trough of low pressure is along Himalayas
c.
Depression as formed over Bay of Bengal.
258.
258.
It iis
sk
kno
nown
wn to be brea
break
k in
in m
mon
onsoo
soon
nw
whe
hen
n
a.
Axis of trough of low pressure is in the southern — most
b.
Axis of trough of low pressure is along Himalayas
c.
Depression as formed over Bay of Bengal.
259.
259.
In Indi
India
a tthe
he mon
monsoo
soon
n c
cur
urren
rents
ts are
are
a.
South - westerly current
b.
SE ly current
c.
NE ly current
d.
Both a & c are correct
260.
260.
Th
The
e mon
monso
soon
on ad
adva
vanc
nces
es with
with::
a.
Bay of Bengal currents only
b.
Arabian sea currents only
c.
Adv
dva
anc
nce
es as two curr
rre
ents. Bay of Bengal
gal and Ara
rab
bian
ian se
sea
a curr
rre
ents
261..
261
The S
SE
E by trad
trade
e win
winds
ds in S
South
outhern
ern - H
Hemis
emisphe
phere
re are d
draw
rawn
n in a
as
s S moi
moist
st
currents in N-Hemisphere under the influence of seasonal low over NW India and
these currents are known as
a.
Monsoon
b.
Trade winds
c.
Cyclone winds
262.
a.
Maximu
Maximum
m w/v in a monsoon low moving
moving from B
Bay
ay of Bengal
Bengal alon
along
g axi
axis
s of trough occur,
NE of Low
Page 47
Page 48
b.
SW Sector of low
c.
NW Sector of low
d.
SE Sector of low
263.
263.
Po
Post
st mon
monso
soon
on we
weat
athe
herr occu
occurs
rs..
a.
Jan - Feb
b.
March - May
c.
June – September
d.
Oct - Dec
264..
264
Dur
During
ing post mon
monsoon
soon weathe
weatherr lower
lower pressure
pressure occurs
occurs o
over:
ver:
a.
Bay of Bengal
b.
NW India
c.
NE India
d.
Central India
265..
265
Dur
During
ing post mon
monsoon
soon higher
higher pre
pressur
ssure
e occur
occurs
s over
over
a.
Bay of Bengal
b.
NW India
c.
NE India
d.
Central India
266.
266.
Post
Post mon
monsoo
soon
nw
wea
eath
ther
er iis
s also
also kno
known
wn as
a.
NE Monsoon
b.
SW Monsoon
c.
SE Monsoon
d.
Retreating Monson Season
267.
267.
Mo
Mons
nsoon
oon we
weat
athe
herr may
may a
als
lso
o be know
known
na
as
s
a.
NE Monsoon weather
b.
SW Monsoon
Page 48
Page 49
c.
SE Monsoon
268..
268
TRS m
may
ay also
also be occur
occur durin
during
g ...
......
......
.....
.. monso
monsoon
on weath
weather
er
269.
269.
No
Norw
rwes
este
ters
rs orig
origin
inat
ate
e fro
from
m
a.
Chota - Nagpur hills
b.
Dacan plato
c.
Sub-mountain district
d.
Khasi hills
270..
270
Sum
Summer
mer season
season the
the wind
wind of west
western
ern coas
coastt durin
during
g day
day is
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
271..
271
In su
summe
mmerr sea
season
son the wind
wind on Weste
Western
rn co
coast
ast durin
during
g ni
night
ght is
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
272..
272
In s
summ
ummer
er se
seaso
ason
n th
the
e wind
wind o
on
n Ea
Easter
stern
n coast
coast duri
during
ng day
day iis
s
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
273..
273
Dur
During
ing summ
summer
er the
the w
wind
ind on East
Eastern
ern coas
coastt durin
during
g ni
night
ght is
a.
Easterly
b.
Westerly
Page 49
Page 50
c.
Northerly
d.
Southerly
274.
274.
In s
sum
umme
merr the
the wi
wind
nd at
at Bomb
Bombay
ay duri
during
ng day
day iis
s
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
275.
275.
In s
sum
umme
merr the
the wi
wind
nd at
at Bomb
Bombay
ay duri
during
ng nig
night
ht iis
s
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
276.
276.
In s
sum
umme
merr the
the wi
wind
nd at
at Madr
Madras
as dur
durin
ing
g day
day is
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
277.
277.
In s
sum
umme
merr the
the wi
wind
nd at
at Madr
Madras
as dur
durin
ing
g nigh
nightt is
a.
Easterly
b.
Westerly
c.
Northerly
d.
Southerly
278.
278.
An air
air m
mas
ass
s bec
become
omes
s uns
unsta
tabl
ble
e whe
when
n
a.
Easterly
b.
Westerly
c.
Northerly
Page 50
Page 51
d.
279.
279.
Southerly
Sq
Squa
uall
ll a
are
re d
dis
isti
ting
ngui
uish
shed
ed from
from g
gus
usts
ts by
by ai
airr
a.
Shorter duration
b.
Longer duration
c.
Lower wind speed
280.
280.
Fr
Fron
ontts are
are foun
found
d in
a.
A thermal low
b.
A mid latitude low pressure area
c.
A tropical low pressure area
281..
281
The h
high
igh press
pressure
ure area
area a
are
re gener
generall
ally
y associ
associate
ated
d wit
with
h wi
winds
nds whic
which
h
a.
Back and increases
b.
Veers and decreases
c.
A tropical low pressure area
282.
282.
Wh
When
en a c
cold
old fr
fron
ontt pass
passes,
es, the
the tem
tempe
pera
ratu
ture
re
a.
Will suddenly rise
b.
Will suddenly fall
c.
Will remain constant
283..
283
Whe
When
n flyi
flying
ng in a stabl
stable
e ai
airr mass
mass y
you
ou c
can
an expect
expect
a.
Commulous types of slouds
b.
Stratus types of cloud with smooth flying condition
c.
Stratus type of cloud with turbulence
284..
284
The atm
atm.. Pressu
Pressure
re a
att a speci
specific
fic level
level may
may be define
defined
d as
as::
a.
The pr
pressure ex
exerted by
by on
one c
cu
ubic fo
foot of
of air a
att tth
hat le
level.
b.
The down
ownward force per uni
unit area
rea ex
exe
ert
rted
ed by air at that level.
el.
c.
The density of air at that level.
Page 51
Page 52
285.
285.
Th
The
e warm
warm fro
front
nt ma
may
yb
be
ed
def
efin
ined
ed as
a.
The leading edge of an advancing cold air
b.
The leading edge of an advancing ward air
c.
The ridge of high pressure.
286.
When sub scale
scale of an altimete
altimeterr is s
set
et to 1013.2
1013.2 mbs the h
htt ind
indicated
icated on th
the
e altimeter:
altimeter:
a.
Is the highest over sea level
b.
Is the highest over the aerodrome level
c.
Is the flight level.
287.
287.
Tr
Trop
opic
ical
al rev
revol
olvi
ving
ng s
sto
torm
rm occ
occur
ur
a.
In the Bay of Bengal in Oct. / Nov.
b.
In the Arabian sea in Oct. / Nov.
c.
In the North West of India in May / June
288.
While avoiding
avoiding th
the
e cent
centre
re of a cyclone
cyclone in the N
Northern
orthern Hemisphere
Hemisphere a
advanta
dvantage
ge can be
taken of tail winds by flying to the
a.
Left
b.
Right
c.
North of centre when approaching from any direction
289..
289
Wit
With
h th
the
e sub scale
scale se
sett to 1013
1013.2
.2 mbs
mbs alti
altimet
meter
er in
indic
dicate
ates
s
a.
True altitude a.m.s.1
b.
Height above ground
c.
Pressure altitude
290..
290
If th
the
e QNH is
is high
higher
er tha
than
n 1013.2
1013.2 m
mbs
bs the
the altitu
altitude
de of th
the
e Flight
Flight lev
level
el wou
would
ld be
a.
Same as standard
b.
Less than standard
c.
More than standard
291..
291
Pre
Pressur
ssure
e altit
altitude
ude at
at a pl
place
ace when
when QNH is above
above 1013
1013.2
.2 mbs
mbs is
Page 52
Page 53
a.
More than true altitude
b.
Less than true altitude
c.
Same as true altitude
292..
292
A cha
change
nge of press
pressure
ure of 1 mb
mb in vertica
verticall dire
directio
ction
n at 6 kms
kms a.m.s.c
a.m.s.c.. wou
would
ld
correspond be a vertical distance of
a.
30 f t
b.
Less than 30 Ft
c.
More than 30 Ft.
293.
If th
the
e QNH of a statio
station
n dec
decreases,
reases, heights
heights of diffe
different
rent ffit
it level
level ab
above
ove th
the
e station.
station.
a.
Decreases
b.
Increases
c.
Remain constants
294..
294
The pres
pressure
sure altitu
altitude
de of a place
place d
depe
epends
nds onl
only
y on llaw
aw a
atm.
tm.
a.
Pressure
b.
Temp
c.
An density
295.
The h
higher
igher the elevatio
elevation
n of a station
station the
the differen
difference
ce between
between QNH. QFE of the station
station will
be
a.
Greater
b.
Less
296..
296
An inc
increas
rease
e of 1000
1000 ft in ele
elevat
vation
ion ne
near
ar the ea
earth
rth is associ
associate
ated
d with d
decre
ecrease
ase of
pressure of
a.
100 mb
b.
1000 mb
c.
3 mb
d.
33 mb
Page 53
Page 54
297..
297
Diu
Diurna
rnall p
press
ressure
ure variat
variation
ion are most pron
pronoun
ounced
ced in
a.
Polar region
b.
Middle latitude
c.
Tropic areas.
298..
298
The aver
average
age hei
height
ght of Tropo
Tropopau
pause
se over
over equat
equatoria
oriall region
regions
s
a.
8 kms
b.
10 kms
c.
16 kms
299..
299
A smoo
smooth
th fligh
flightt may b
be
e expecte
expected
d if the
the radi
radio-s
o-sond
onde
e observa
observatio
tions
ns show
show
a.
Temperature inversion
b.
Lapse rate termed as dry adiabatic
c.
Super adiabatic lapse rate
300.
If a
an
n a/c
a/c flies
flies at
at a constant
constant iindicat
ndicated
ed altit
altitude
ude ttoward
owards
s an area of o
over
ver temperat
temperature,
ure, the
altimeter will
a.
Under reads
b.
Over reads
c.
No change
301.
301.
In S
SH
H aroun
around
d a low
low pre
pressu
ssure
re area
area wi
wind
nds
s bl
blow
ow
a.
In a clock wise direction
b.
In an anticlockwise direction
c.
Across the isobars towards the centre
302.
302.
In tthe
he NH
NH th
the
e dire
directi
ction
on o
off th
the
e th
therm
ermal
al win
wind
d is
a.
At right angles to the isotherms from high to low temp
b.
Along the isotherms with low temperature to the left.
c.
Along the isotherms with low temperature to the right.
303..
303
The ap
appea
pearan
rance
ce of len
lentic
ticula
ularr clouds
clouds enable
enables
s the pilot
pilot to inf
infer
er the presen
presence
ce of
Page 54
Page 55
a.
Warm front
b.
Cold front
c.
Standing waves over mountain regions
304..
304
A fog fforme
ormed
d by warm
warm moist
moist air fflow
lowing
ing o
over
ver a c
cold
old s
surf
urface
ace is
is cal
called
led..
a.
Advection fog
b.
Radiation fog
c.
Frontal fog.
305.
To avo
avoid
id a/
a/c.
c. ici
icing
ng in flight
flight in cloudy condition
condition a pilot is advised
advised tto
o be guided by. Optica
Opticall
phenomenon & fly through a cloud which is seen to have
a.
Halo
b.
Carona
c.
A system of coloured rings called "glory"
306..
306
In the B
Bay
ay of Be
Benga
ngall duri
during
ng the month
months
s of July & Au
August
gust ttrop
ropica
icall depr
depressi
ession
on for
form.
m.
a.
At the head of the bay
b.
Central bay
c.
South bay
307..
307
In Ind
India
ia Easterl
Easterly
y jjet
et strea
stream
m is fou
found
nd south
south bay
a.
In the winter months along a lat of 2600n at 12 km
b.
During S
S/
/W monsoon season at 1 2 k
km
m. Near lla
at 1 300 N.
308.
During the month
month of
of May & Jun
June,
e, in India the seasona
seasonall low-pressur
low-pressure
e area lies over.
over.
a.
NE India
b.
NW India
c.
South Bay of Bengal
309..
309
a.
b.
Dur
During
ing S
S/W
/W monsoo
monsoon
n seas
season
on the
the uppe
upperr winds
winds at 4000
40000
0 ft over
over south
south India
India are
Easterly
Westerly
Page 55
Page 56
c.
310.
310.
South Westerly
Cy
Cyclo
cloni
nic
c stor
storms
ms cross
cross Tami
Tamiln
lnad
adu
u co
coast
ast in
a.
October to December
b.
May to July
c.
February to May
311.
The surface discontinuit
discontinuity
y between
between Polar Easterlies
Easterlies & the temperature
temperature Westerlies
Westerlies iis
s
called.
a.
Equatorial front
b.
Tropopause
c.
Polar front.
312.
312. We
West
sterl
erly
y dist
disturb
urban
ances
ces affe
affect
ct the
the
a.
the southern part of India from November to February
b.
Northern part of India from December to March
c.
Western part of India from July to September
Page 56