INSTITUTE OF AERONAUTICS & ENGINEERING
Paper – II
DGCA June -2009
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Which type of view is shown in IPC and service bulletins
1. Assembly drawing
2. Detail drawing
3. Exploded view
4. All
Identify the figure
1 External thread
2. Internal thread
3. Thread insert
4.
Which type of drawing (projection) basically used in a/c
1. 1st angle
2. 3rd angle
3. Both
Maximum allowable weight without fuel
1. Pay load
2. Zero fuel weight
3. Both
4. None
Ballast should be installed in a/c
1. Near the C-G
2. Farthest from C – G
3. Permanent ballast is preferable
4.Any one
In vapor lock, the pressure of fuel
1 High
2. Low
3. Both
Colour of 100 LL AVGAS
1. Red
2. Green
3. Blue
4. Yellow
MTCS
1. 100 LL colour is green
2. 100 LL not over 2.0 ml/ gallon and is blue colour
3. Dispenser of fuel is blue
4. Both 2 & 3
Rigid tubing made of
1. Teflon
2. Nylon
3. Steel tube and aluminum
4. All
MTCS, Regarding flexible hose
1. used in location subject to vibration
2. Connected with moving parts
3. Where flexibility is a factor
4. All
MTCS,
1.Teflon hose detoriates with temp.
2. High resistance to vibration and less resistance to fatigue
3. Teflon is not affected by detoriation
4. (2) + (3) both are correct
White tightening bolt instead of nut
1. Over tighten
2. Under tighten
3. Some other method
In close tolerance bolt
1. Pounding load is reqd
2. Used when bolt and rivet are used
3. Both
Lock bolt
1. Bolt and nut
2. Rivet and nut
3. Rivet and bolt
4. Only 1 & 2 are correct
In castle nut
1. Large tension load
2. Cotter pin used
3. Deep costellation
4. All
Which is opened without ……………. Tool with quick action
1. Fastner
2. Bolt (Shear)
3. Wing nut
4. Check nut
If locking nut
1. Used under vibration 2. Not used in rotation
3. Used in controls and pulleys
4. All
Sheet spring nut
1. Used in standard sheet metal self tapping screws
2. Used in structural location
3. Only 2 is correct
Plain washer
1. Prevent surface damage
2. Smooth bearing surface
3. Prevent corrosion
4. All
Bolt should be installed
1. Top and in board
2. Down and in board
3. Inboard and bottom
…….. screws
1. Peening
2. ………. Locking insert
3. nylon , female receivable
4. any one of the above
In nuts, ‘R’ indicates
1. Right hand thread
2. Round head
3. Recessed type
4. All
Turnbuckle barrel made of
1. Brass
2. Bronze
3. Copper
4. Both 1 & 2
In turnbuckles, left hand can usually identified by
1. Yellow mark on left side
2. Knurled
3. Grooved +2
4. Only 2 is correct
While safety wiring the parts, the ……… wire should not be length more than
1. 1"
2. 3"
3. 2"
4. 1.1/2"
While approaching the wire to the rotational axis of Q part the angle should be less than
1. 30
2. 45
3. 60
4. 90
Al alloy 7075 rive is indicated by
1. Raised dash 2. 3 recessed dash
3. 3 raised dash
4. One recessed & one raised dash
Pin rivets
1. One time stronger than solid shank rivet
2. 2 time stronger than solid shank rivet
3. 3 time stronger than solid shank rivet
0
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Dissimilar metal corrosion caused due to
1. Galvanic action
2. High humidity
3. Improper heating & cooling
While clamping
1. Remove corroded part
2. Remove anodized part
3. Both 1 & 2
Anodizing is
1. Chemical treatment
2. Electrochemical treatment
3. Both
Zinc chromate primer is used for
1. Thermal insulator
2. Corrosion & base for top layer point
3. Both
Modulus of elasticity
1. Stress/ strain within elastic limit 2. Strain /stress
3. None
Alumimium cable is used
1. Less wt.
2. Mechanical advantage
3. Temp. Compensation
SAF 4130 contains
1. Chromium
2. Mo
3. Ni
SAF 4130 last 2 digit indicates
1. Major alloying element.
2. Carbon content
3. Carbon content
4. Corrosion % in 1%
Alclad is
1. Al alloy coating with pure Al. Core
2. Al. surface with Al. Alloy core 3. surface with Zn alloy core
Which among these is highest resistance
1. 1000 w, 200 v
2. 100 w, 100v
3. 500w , 500 w lamp
4. 100v. 200v temp.
In short ckt. Condition
1. Voltage zero, current zero
2. Voltage infinity, current zero
3. Voltage zero , current infinity
In capacitive ckt current
1. Lag voltage by ۸/2
2. Lead voltage by ۸/2
3. Resonance
In installing battery in a/c
1. Hot lead first
2. Cold lead first
3. Cold lead first
4. Both simulates
Glavano meter corrected to voltmeter
1. Shunt
2. Resistance in series
3. Both
Power factor Is 0.6
1. Ratio watt less to watt full is 0.6
2. Ratio is watt full upon watt full
In an A.C Ckt opposition by coil
1. Impedance
2. Resistance
3. Inductive reactance
Cleaning of spilled electrolyte
1. Acid of Ni- cd battery
2. Baking soda for lead acid battery 3. Both
Electrolyte in Ni- Cd . battery
1. Potasium hydroxide
2. Potasium peroxide
3. Potasium oxide
State of charge of Ni- cd battery is cheakedly
1. Spark test of +ve & –ve terminal
2. State of discharge
3. Level of electrolyte
When battery is old an not giving of 80% capacity is recovered by
1. Full cell recovery check
2. Cell balancing
3. Voltage checking
4. All
In a transistor
1. Emitter base forward bios
2. Collector base reversed bios
3. Both
4. Only 1 is correct
In a dny dist
1. Will conduct By zero diode
2. Will not enduct by zero diode
3. None
In fuse material used
1. High melting point in resistance
2. Law melting point law resistance
3. High melting point high resistance
4. Low melting point high resistance
Limited type operation switch is
1. Toggle switch
2. Push button switch
3. Both are equal
Continuity of ckt.
1. Ohm meter
2. Ammeter
3. Voltmeter
To check the steping up & step down of transformer
1. Ohm meter
2. Ameter
3. Volt meter & ammeter
4. All
Change of a capacitor
1. Directly depend on voltage & plate
2. Directly proportional to the dist b/w plates & voltage
3. Directly proportional to the current
Parallel switch is
1. OR
2. AND
3. NOR
4. N AND
High starting torque
1. Series AC motor
2. Shunt DC motor
Constant voltage w/o fluctuation is given by
1. Shunt wound
2. Series wound
3. Different wound
4. Diode
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Full power full rectifier is used
1. 2 diode
2. 4 diode in bridge
3. 3 diode
4. 2 diode is sufficiently in bridge
HI – tigue pin
1. Close fit
2. Loose fit
3. Interference fit
Three unit regulator contain
1. Voltage limiter
2. Current limiter
In synchronizing alternator
1. Alternator to the same bus must have the same phase sequence or well as the voltage & frequency
2. Bus is not compulsory
Seams checked
1. DPI
2. MPI
3. PFD
Surface & subsurface check in plastic , ceramic , metals , shuts
1. Fluorescent
2. UFD
3. Eddy current
4. All
Water in honeycomb is checked by
1. X – ray
2. VFD
3. MPI
UFD checks
1. Fatigue craks
2. Thickness
3. All
In pressure fuelling
1.Bowser press must be correct
2. Grounding must be connected 3. Both
4. Only 2
MTCS
1. On a/c with Steerable nose wheel, the locking secssior would be a full swivel
2. Must be towed backward
4. All
When a/c is heading to the wind
1. Elevator down by 20
2. Elevator fully up position
3. elevator up by 30
Centre of a cylindercal object is obtained by
1. Micrometer
2. DTI
3. Combination
4. All
When battery freezes but still it is used because of
1. Acid in the solution
2. –Ve resistance increased
3. Both
Reamer
1. Reaming hole of exact size
2. For drilling long holes
3. For cutting threads
Screw pitch gauge
1. No of thread for inch, both external & internal
2. Pitch dia & 1
Breaks are made by
1. Carbon
2. Aramid
3. 1 & 2
4. Ceramic & aramid
Properties of armide
1. High lensite strength 2. Yellow in colonr
3. Both
Ribbon is cut
1. Along the direction of torn
2. Along circular
3. Along the top & below
Colour of skydril
1. Green
2. Red
3. Blue, in yellow
Flux is used for
1. Remove oxidation
2. For filling space
3. All
Dull thud sound indicates,
1. Delamination
2. Water Presents
3. Onward
4. None
In an turn ad bank indicator battery is thrown due to (While turning )
1. Over banking
2. Under banking
3. Slipping
While removing damaged rivet
1. Use longer diameter of drill
2. Use smaller dia of drill
3. Same dia of drill
While drilling composite material
1. Low feed, high rpm , water is added for same condition
Bonded honeycomb structure . Is used for
1. Weight to strength ratio
2. Compressive strength
3. Weight to strength ratio and resistance to sense vibration
Material which can be connected to insulator & conductor by setting the wire
1. Insulator
2. Conductor
3. Semiconductor
4. Resistor
CFRP
1. Carbon fibre rein forced plastic
2. Carbon fiber rein forced plastic
3. Compo site fibre rein forced plastic
In self locking nut, correct installation is check by
1. Chamfered portion of bolt protruding out of insert
2. At least 3 threads protruding out of nut
3. 1 thread protruding out of nut
4. 1 & 3
Discharge of battery due to
1. Sulfa nation
2. Rapid change & discharge
3. Both
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Major alloying element of 2024
1. Cu
2. Mg
Brass is alloy of
1. Cu & Zn
2. Cu & Tn
In PFD the penetration time
1. 10 min.
2. 1 & more time for fine
In florescent type the defect color is
1. Green yellow
2. Blue voilet
Direction of movement of driven shaft of generator is
1. View from front
2. View from back
When motion parallel shaft
1. Surfers
2. Bevel gear
PFD inspection is applicable to
1. Ferrous Alloy
2. Non ferons alloy
Conduits used in fluid line because of
1. High temp
2. High press
I 1 miliber is equal to
1. 0.75 mm of Hg
2. 0.75"
Addendum
1. Above the pitch circle
3. Zn
3. Bronze & Cu
3. 30 min
4. All
3. None
3. Both
4. Con not be determined
3. Sector gear
3. Non porous
3. None
4. A/c
ANSWER SHEET
1-3
2-3
3-2
4-2
5-2
6-2
7-2
8-2
9-3
10-4
11-2
12-1
13-3
14-3
15-4
16-3
17-4
18-1
19-4
20-1
21-4
22-1
23-4
24-3
25-3
26-4
27-2
28-3
29-3
30-1
31-2
32-2
33-2
34-1
35-1
36-3
37-2
38-1
39-3
40-2
41-1
42-1
43-2
44-1
45-1
46-3
47-1
48-2
49-1
50-3
51-2
52-4
53-2
54-1
55-1
56-1
57-1
58-1
59-1
60-3
61-3
62-2
63-1
64-2
65-1
66-1
67-3
68-1
69-1
70-2
71-3
72-3
73-1
74-1
75-4
76-3
77-1
78-1
79-1
80-1
81-2
82-2
83-1
84-3
85-3
86-1
87-4
88-3
89-1
90-1
91-3
92-1
93-3
94-1
95-4
96-1
97-1
98-