DENİZCİLİK İNGİLİZCESİ
------------- is the first signal of
lube- oil trouble.
•
•
•
•
A) Lube oil gravity tank low level alarm goes off
B) Low lube oil sump level
C) Low outlet temperature from lube oil coolers
D) No flow throught bull’s eye from gravity tank
observed
• E) A and B
The usual cause of crankcase
explosions in diesel engines
is not ----------------------•
•
•
•
•
Heating lubricating oil
Overheating lubricating oil
Poor condition of the cylinder
Crank shaft bearing failures maintenance
Any above
-------------- is not one of the
advantages of the open
cooling system.
•
•
•
•
Being the simplest system
No requirement of heat exchange
Obligation of keeping engine cool
The requirement of only one water
circulating pump
• The requirement of 2 water circulating
pumps
4.The TEV (thermostatic
expansion valve) is located
between:
A.
B.
C.
D.
E.
The receiver and the king valve
The king valve and solenoid
Both A and B
The solenoid valve and evaporator
The charging valve and solenoid
5. Another name for the
liquid valve is:
A.
B.
C.
D.
E.
Master valve
King valve
Freon valve
Shut off valve
None of above
6. What is the high pressure
side of the refrigeration system?
A.
B.
C.
D.
E.
Compressor to condenser
Evaporator to compressor
Expansion valve to evaporator
Compressor to expansion valve
Evaporator
7. The low pressure side of a
refrigeration system is from the:
•
•
•
•
•
A)
B)
C)
D)
E)
Expansion valve to compressor
Compressor to expansion valve
Expansion valve to the evaporator
Condenser to the expansion valve
None of the above
8. The bulb for the TEV
(thermostatic expansion
valve) is located:
A.
B.
C.
D.
E.
In the middle of the evaporator coils
Near the evaporator coil outlet
Near the evaporator coil inlet
On the bottom row of the evaporator
None of the above
9. The solenoid valve can be
typed as a:
A.
B.
C.
D.
E.
Thermal valve
Magnetic stop valve
Bellows valve
Bimetallic valve
Both C and D
10. What is the advantage of
using a hydraulic starting system
for an emergency diesel?
A.
B.
C.
D.
E.
The system is inexpensive
High pressure lines are not required
It is compact
Faster cranking speeds are obtained
None of the above
11. What would cause white
smoke after you just started
the diesel?
A.
B.
C.
D.
E.
Too week battery power
Water in the fuel
Water in the gas
Water in the oil
Salt water in cooling water
12. Pre combustion chambers
in a diesel engine:
A. Require that each cylinder use two spray nozzles
B. Require the use of flat crowned pistons to obtain
turbulence
C. Permit the use of a wide range of fuel in that
engine
D. Contain all of the air charge at the end of the
compression stroke
E. Require that each cylinder use more than four spray
nozzles
13. The coils in the evaporator
are attached to the header by:
A.
B.
C.
D.
E.
Pipe nipples
Union type fittings
Welding
Bolted flanges
Both C and D
14. Cylinder liner are
generally used on diesel
engines because:
A. Liners may be easily replaced after the cylinder
walls show wear
B. Liners provide a more efficient cooling system
C. Rubbing speeds are reduced through
the use of liners
D. Liners provide a better lubricating surface
E. None of the above
15. The dehydrator on a
refrigeration plant is used to:
A.
B.
C.
D.
E.
Add moisture to the system
Remove moisture from the system
Remove air from the system
Remove oil from the system
Both C and D
16. Regardless of the geographical
location of on oil spill, you should
notify the ------------------
A.
B.
C.
D.
E.
Local police department
Local fire department
Corps of Engineers
Coast Guard
The pilot
17. ---------------is the principal
hazard to staff when a diesel
nozzle tester is in use is
A.
B.
C.
D.
E.
Electrical shock
Toxic fumes
Explosion
Blood poisoning
Loosing consciousness
18. A “pneumercator” measures:
A.
B.
C.
D.
E.
Oil pressure
Air level
Liquid level
Air pressure
Air temperature
19. What type of gauge reads
pressure and vacuum?
A.
B.
C.
D.
E.
Duplex
Simplex
Both B and C
Compound
Bourdon tube
20. Most gauges in the fire
room are:
A.
B.
C.
D.
E.
Manometers
Thermocouples
Dual purpose
Thermometers
Bourdon tube – type
21. The removal of contaminating
impurities from lubricating oil will
......................
A.
B.
C.
D.
E.
Increase engine wear
Decrease engine wear
Increase possible breakdowns
Decrease possible breakdowns
B and D
22. Cut out system on the aux
boiler operates
................................
•
•
•
•
•
A)
B)
C)
D)
E)
Low level alarm
Low low level alarm
High level alarm
High pressure alarm
Low pressure alarm
23. ---------------is the cause of
burned exhaust valves
A.
B.
C.
D.
E.
Overloaded cylinder
Poor combustion
Distortion and faulty reseating
maintenance
Any above
A and B
24. When a cargo hose joint or
coupling starts to leak badly the
attempt you should do is to...
A. Reduce pressure and rag
leak securely
B. Shut down transfer and make repairs
C. Soak spill with sawdust and reduce
pumping pressure
D. Wash deck immediately and close tank
tops
E. Carry on transfer pumping
25. Water in the lube oil system may
be detected by: I. sounding lube oil
tanks with water sensitive paste; II.
observing the purifier discharge.
A. I
B. II
C. I and II
D. Neither I nor II
E. None of above
26. Electrohydraulic steering units
are protected from pounding forces
(rudder shock) by:
A.
B.
C.
D.
E.
Buffer springs
Follow up mechanism
Relief valves
Relieving gear
Steering pumps
27. Blue smoke coming from the
diesel exhaust would indicate:
A. Excessive fuel consumption/unburned
fuel
B. Burning of lube oil due to possible blowby
C. Lean fuel/air mixture, too much air
D. Insufficient amount of fuel consumption
E. None of the above
28. The valve which is always
partially open when the
evaporator is in operation is the:
A.
B.
C.
D.
E.
Vapor valve
Continuous blowdown valve
Bottom blowdown valve
Surface blowdown valve
Fresh water valve
29. Studs and nuts intended for use
in main steam line flanges and
fittings are marked with an “H” or a
“T” to show they are:
•
•
•
•
•
A)
B)
C)
D)
E)
Heat resistant
Hard finished
Half threaded
Corrosion resistant
Fire proof
30. The rotating part of a
micrometer is the:
A.
B.
C.
D.
E.
Anvil
Barrel
Frame
Thimble
Cover
31. An advantage of
aluminum pistons compared
to cast iron pistons is:
A.
B.
C.
D.
E.
Greater high temperature strength
Greater weight per cubic meter
Increased resistance to wear
Low temperature strength
Better heat conductivity
32. Trunk type diesel engine
pistons are most effectively
cooled when heat is:
A. Radiated through the engine block
B. Mixed with lubrication oil
C. Conducted through the piston crown
D. Transferred to escaping exhaust gases
E. Transferred to water cooled cylinder
walls
33. Cavitation, the forming and
bursting of vapor filled cavities
or bubbles will result in ...........
A.
B.
C.
D.
E.
A loss of thrust
Erosion of the blade surface
Vibrations in the afterbody of the ship
Noise
All above
34. When the oil in the seperator
is decreasing, which place
cannot be leaking?
A.
B.
C.
D.
E.
Lower bearing casing
Drum shaft
Wormgear shaft bearing hosing
Middle ball bearing casing
The o-ring at shock water entrance to
seperator into shockwater
35. -------------should be regarded
as a special attention after
installing a new hydraulic pump.
A)
B)
C)
D)
E)
The relief filters should be readjusted
The filters and strainers should be
checked frequently
System pressures should be readjusted
The fluid should be drained and
renewed
All above
36. All details of fuel bunkering,
ballast handling, tank cleaning or
slop disposal must be entered in the
...............................................
A.
B.
C.
D.
E.
Rough log
Engine room log
Oil record book
Smooth log
A and B
37. It shall be the responsibility
of the ------------------- to prepare
the boilers for inspection.
A.
B.
C.
D.
E.
Chief Engineer
2nd Engineer
Boatswain
2nd officer
Any above organization
38. Performance of a
turbocharged engine can be
improved by:
A. Decreasing valve over lap
B. Preheating
C. Aftercooling intake air
D. Preheating light fuels
E. Heating intake air
39. When maneuvering, you discover
heavy smoke coming from the
turbocharger casing. You should:
A.
B.
C.
D.
E.
Check the air filter for dirt
Check for an exhaust leak
Check the cooling water temperature
Notify the bridge and ask to shut the
engine down
Check fuel oil consumption
40. A device which will function to bring
an engine to a full stop in order to protect it
from damage due to excessively high
speed is known as a/an:
A.
B.
C.
D.
E.
Torque limiter
Overspeed trip
Overspeed governor
Load limit governor
Any of above
41. The requirement for portable
fire equipment is ................
A. Annual check
B. Keeping in easily accessible places
C. Hose connections and keeping hoses in
good condition
D. All above
E. Before the end of consuming period
42. A fire sprinkling system must
be fitted ........
A. On all vessels over 5000 GT.
B. In conjuction with the Co2 system,
C. With a pressure tank of fresh water to the
supply system pending the starting of the
pump,
D. None of the above
E. A and C
43. The process of supplying the intake of
a diesel engine with air at a pressure
greater than atmospheric is called
A. Engine displacement
B. Scavenging
C. Air injection
D. Supercharging
E. Intercooling
44. In the simple mechanical
governor, the:
A. Flywheel centrufigal force is balanced by
spring pressure
B. Centrifugal force rotates the ball head
C. Flyweight centrifugal force is balanced by
hydrolic pressure
D. Speeder spring actuates the fuel control
rod.
E. Hydrolic force rotates the ball head
45. The bulb for the TEV
(Thermostatic Expansion Valve) is
located..........
A. In the middle of evaporator coils
B. Near the evaporator coils outlet
C. Near the evaporator coils inlet
D. On the bottom row of the evaporator
E. None of the above
46. The coils in the evaporator
are attached to the header by
A. Pipe nipples
B. Union type fittings
C. Welding
D. Bolted flanges
E. Both C and D
47. The dehydrator on a
refrigeration plant is used to ...
A. Add moisture to the system
B. Remove moisture from the system
C. Remove air from the system
D. Remove oil from the system
E. Both C and D
48. The oil level in the
compressor should be checked:
A. While the compressor is in the operation
B. Just before starting the compressor
C. After a long period of operation
D. For both B and C
E. None of the above
49. As freon leaves the
expansion valve:
A. Pressure decrease-Volume increase
B. Volume decrease-Pressure increase
C. Volume increase-Pressure increase
D. Pressure increase-Volume decrease
E. None of the above
50. The selonoid valve can be
typed as a:
A. Thermal valve
B. Magnetic stop valve
C. Bellows valve
D. Bimetallic valve
E. Both C and D
51. What statement is not true
regarding the function of steam turbine
A. Steam turbine extracts mechanical work
from the energy stored in steam
B. Steam turbine generates electrical energy
C. Sometimes steam turbine is connected to
a reduction gear
D. Steam turbine is used as cargo pump
drive source
E. Steam turbine produces steam for steam
engine
52. The burning of fuel and air
mixture in the cylinder is called as:
A. Propulsion
B. Combustion
C. Expansion
D. Compression
E. Conversion
53. “Gas will expand when heat is applied”
What statement below has the same
meaning with this law of phsycs
A. Gas expands unless heat is applied
B. When gas expand, its temperature decreases
C. Whenever gas is heated, it expands
D. Gas expands, otherwise heat is applied
E. If we expand the gas, it will heat
54. “When a gas is compressed, the temperature of
the gas will increase”
What word can be used instead of underlined word
without changing meaning
A. Decrease
B. Raise
C. Reduce
D. Expand
E. Exceed
55. What statement is not true
regarding gas turbines
A. Gas turbine operates on the Otto Cycle
B. Gas turbine has low manoeuvring
capability
C. Gas turbine are used on super tankers,
naval ships or aircrafts
D. Gas turbine is not attractive for a ship
owner because of high fuel cost
E. Gas turbine is an internal combustion
engine
56. Performance of a turbocharged
engine can be improved by
a.
b.
c.
d.
e.
Decreasing valve overlap
Preheating
Aftercooling intake air
Preheating light fuels
Heating intake air
57. When maneuvering, you discover
heavy smoke coming from the
turbocharger casing. You should:
a.
b.
c.
d.
Check the air filter for dirt
Check for an exhaust leak
Check the cooling water temperature
Notify the bridge and ask to shut the
engine down
e. Check fuel oil consumption
58. A device which will function to bring
an engine to full stop in order to protect
it from damage due to excessiveley
high speed is known as a/an:
a.
b.
c.
d.
e.
Torque limiter
Overspeed trip
Overspeed governor
Load limit gavernor
Any of above
59. Refrigerant leakage from the
compressor crankcase is
prevented by........
a.
b.
c.
d.
e.
Using skirt type piston
Using shaftseals
Using lantern rings
Maintaining a vacuum in the crankcase
Any above
60. The reciprocating motion of
a connecting rod is transformed
into a rotary motion by the .......
a.
b.
c.
d.
e.
Crankshaft
Crankwebs
Crank cheeks
Crankpins
Piston
61. A pyrometer is normally
used to measure:
a.
b.
c.
d.
e.
Steam pressure
Water temperature
Draft loss
Humidity
Gas temperature
62. The successive order of 4
stroke diesel engines:
a.
b.
c.
d.
e.
Compression-suction-firing-exhaust
Suction-firing-compression-exhaust
Suction-compression-exhaust-firing
Suction-compression-firing-exhaust
Compression-air inlet-firing-exhaust
63. When the valves are operated........
on a diesel engine, they are actuated
by means of cams, pushrods, rocker
arms and rollers
a.
b.
c.
d.
e.
Mechanically
Hydrolically
Pneumatically
Electrically
Any above
64. The pistonheads in the engine
are manifactured concave and
convex shaped in order that........
a.The vessel will be faster
b.It will control the temperature of the engine
c.It will increase oil pressure in the engine
d.It will increase the durability of the piston
e.It will provide a powerful engine
65. Lubrication oil viscosity in an
operation diesel engine can be
reduced by:
a.
b.
c.
d.
e.
Overloading the engine
Increasing the amount of lube oil
Decresing the amount of cooling water
Combustion by products contamination
Fuel oil dilution
66. All the following are used for low
temperature starting, except:
a.
b.
c.
d.
e.
Ether
Jacket water heaters
Both a and b
Air intake heaters
Cylinder compression ratio reduced
67. The purpose of the low
pressure cutout switch is to:
a. Maintain liquid refrigerant at the suction of the
compressor
b. Maintain a preset suction pressure to the
compressor
c. Cut out the compressor in at a preset
temperature
d. Maintain a compressor in at a preset
temperature
e. Cut compressor in and out at a preset
pressure
68. In terms of pressure and
temperature, what happens to the
primary refrigerant in the compressor
a. Its pressure and temperature are both lowered
b. Its pressure and temperature are both raised
c. Its pressure is lowered and its temperature is
raised
d. Its pressure is raised and its temperature is
lowered
e. None of the above
69. Watertube boilers are
designed to operate within the
conditions of ........
a.
b.
c.
d.
e.
High pressure, temperature, capacity
Low pressure but high capacity
Heavy but quick steam raising process
A and c
For the auxiliary purposes
70. The purpose of the
evaporator is to:
a.
b.
c.
d.
e.
Absorb latent heat of vaporization
Absorb latent heat of fusion
Transfer latent heat of vaporization
Transfer latent heat of fusion
Transfer latent heat of freezing
71. In a gas turbine , the
pressure of air is changed
a.
b.
c.
d.
e.
At the inlet
In the combustion chamber
Through the compressor
During the combustion
Through the inlet of turbine
72. What factor is not primarily
taken into account by a ship
owner when choosing an engine
a.
b.
c.
d.
e.
Cost
Propulsive efficiency
Size and weight
Maintenance work load
Installation time
73. The term ........indicates the
piston motion in the cylinder
a.
b.
c.
d.
e.
Cycle
Sequence
Combustion
Stroke
Ignition
74. The sequence of events that
take place in the cylinder of an
engine is indicated by the term:
a.
b.
c.
d.
e.
Cycle
Stroke
Power
Compression
Combustion
75. “Piston moves upward to almost
top of the cylinder, both intake and
exhaust valves are closed. The air
compressed above the piston”
describes the .......... stroke
a.
b.
c.
d.
e.
Compression
Power
Intake
Exhaust
Ignition
76. What statement is not true
regarding power stroke?
a. The air pressure is very high
b. The compressed air temperature is below
the ignition point of the fuel
c. The heated air ignites the fuel
d. The intake and exhaust valves are closed
e. Power stroke comes after compression
stroke
77. “The piston is forcing the exhaust
gas out of the cylinder by moving
downward”
What word must be changed to get the
true meaning
a.
b.
c.
d.
e.
Piston
Exhaust
Gas
Cylinder
Downword
78. What statement is not true
regarding two-stroke engines?
a. Two stroke engines are uniflow and cross
flow types
b. Two stroke engines have ports on liner
c. Crankshaft completes two revolutions in a
two stroke cycle
d. Compression and power strokes are two
strokes comprising the cycle
e. Two-stroke engines may be fitted with
crossheads
79. In “Sulzer 7RLB 66”; 66
indicates ........
a.
b.
c.
d.
e.
The number of cylinder
The diameter of cylinders
The year that engine manufactured
Revolution per minute
Model
80. .......is not stationary part of
a diesel engine
a.
b.
c.
d.
e.
Crankcase
Crosshead
Bedplate
Cylinder
Liner
81. Bedplate is seated on the
..........
a.
b.
c.
d.
e.
Cylinder block
Crankcase
Engine frame
Girders
Foundation
82. What statement is not true
regarding crankcase?
a.
b.
c.
d.
e.
It is below the cylinder
It consist of upper and lower sections
It provides a sump for fuel oil
It encloses the crankshaft
Manholes on it allow access for
maintenance
83. Cylinder head on a fourstroke engine contains.......
a.
b.
c.
d.
e.
Air starting valve
Inlet valve
Exhaust valve
Fuel injector
All
84. What statement is not true
regarding bedplate?
a. Bedplate supports the engine
b. It consists of cross and longitudinal
girders
c. It is seated on the foundation
d. It must withstand the fluctiating forces
during operation
e. It encloses the main bearing
85. The cooling medium for cylinder
cooling circulates through
a.
b.
c.
d.
e.
Jacket
Main bearings
Crankcase
Sump
Shafting
86. Which of the following parts
is not a running part?
a.
b.
c.
d.
e.
Piston
Crosshead
Cylinder
Exhaust valve
Camshaft
87. What part is exposed to the
combustion directly
a.
b.
c.
d.
e.
Piston crown
Piston skirt
Piston rod
Piston rings
Piston pin
88. Piston is connected to
connecting rod by:
•
•
•
•
•
Piston rod
Piston head
Piston pin
Piston skirt
Crosshead guide
89. The grooves on the piston
are for:
a.
b.
c.
d.
e.
Piston pin
Piston rod
Piston crown
Crosshead slippers
Piston rings
90. What has a direct contact
with piston rings?
a.
b.
c.
d.
e.
Liner
Camshaft
Crosshead
Crankshaft
Jacket
91. What statement is true
about pistons?
a. Piston is generally cooledwith seawater
b. Piston moves axially
c. Piston is connected to the connecting rod
by piston pin
d. Piston is only made of steel
e. Diesel engines use only trunk type
pistons
92. What statement is not true
regarding camshaft?
a. Camshaft is used to operate the fuel
pump and exhaust valve
b. It rorates at the same speed with the
crankshaft on four stroke engines
c. Camshaft is driven by crankshaft with the
gear gear drive or chain drive
d. Camshaft has cams
e. The camshaft is driven by a cam gear
93. In two stroke crosshead
engine, the piston is connected to
the crosshead by:
a.
b.
c.
d.
e.
Crosshead slipper
Piston rod
Piston pin
Cam journal
Piston crown
94. ........is not a cooling system.
a.
b.
c.
d.
e.
Piston cooling
Crankcase cooling
Lube oil cooling
Charge oil cooling
Pitch propeller cooling
95. The purpose of cylinder
cooling is:
a. Maintaining the engine temperature at a
certain level of operation
b. Retaining the piston temperature at
constant speed
c. Making liner more slippery
d. Treating the fresh water before starting
the engine
e. Reducing the crankshaft revolution speed
96. Receiving fuel on board the
vessel is called as:
a.
b.
c.
d.
e.
Storage
Seperation
Bunkering
Transfer
Service
97. Fuel transfer pumps are of:
a.
b.
c.
d.
e.
Centrifugal type
Gear type
Positive dispalcement type
Axial flow type
Screw type
98. Fuel main is located:
a.
b.
c.
d.
e.
On the bunkering station
On the storage tank
On the service tank
In the engine room
Underneath the cargo spaces
99. What parts are not
lubricated on four stroke cycle
engines?
a.
b.
c.
d.
e.
Main bearings
Crank pins
Piston pins
Crosshead guides
Liners
100. The lubricating oil
temperature is controlled with a:
a.
b.
c.
d.
e.
Thermostatic valve
Viscosity regulator
Heater
Cooler
Strainer
101. The lubricating oil is
stored in the ........located at the
bottom of crankcase
a.
b.
c.
d.
e.
Sump
Expansion tank
Drain tank
Lubricator
Steam heating coil
102.
a.
b.
c.
d.
e.
What is not a part of
propulsion system
Propeller
Shafting
Main thrust block
Reduction Gear
Rudder
103.
a.
b.
c.
d.
e.
“Hub, blade, pitch”. The
terms are related to:
Shafting
Rudder
Thrust block
Propeller
Sterntube
104.
“Each blade is set into the
boss and connected to the crosshead.”
What word cannot be used instead of
the underlined word?
a.
b.
c.
d.
e.
Linked
Attached
United
Slipped
Joined
105.Performance of a turbocharged
engine can be improved by:
a.
b.
c.
d.
e.
Decreasing valve over lap
Preheating
Aftercooling intake air
Preheating light fuels
Heating intake air
106. The drains from both effects in
a low pressure evaporator have
their pressures equalized in the:
a.
b.
c.
d.
e.
Equalizer tank
Drain tank
Flash chamber
Air ejector condense
Fuel oil tank
107.Prior to port arrival, a diesel alternator
....., turbo alternator ....... And all the full
away procedure should be done .....
a. Will have to be started/will be shut down/in
reverse order
b. Does not have to be started/will have to be shut
down/in reverse order
c. Will have to be started/will have to be started/in
right order
d. Will have to be shut down/will have to be
started/in reverse order
e. Doesn’t have to be shut down/will have to be shut
down/in right order
108.When oil is heated, it
becomes.......
a.
b.
c.
d.
e.
Less viscous
Emulsified
More viscous
Vitrified
Not necessarly viscous
109.The instrument always used in
conjunction with a salinity indicator
is the:
a.
b.
c.
d.
e.
Pyrometer
Thermometer
Hygrometer
Hydrometer
Oxygen meter
110. ............is hardly the cause of a
smoky diesel engine exhaust
a.
b.
c.
d.
e.
Overload
Malfunctioned injector
Choked exhaust pipes
Inappropriated amount of fuel
Appropriated amount of fuel
111. When starting ballasting
.....valve should be opened last
a.
b.
c.
d.
e.
Seacock
Pump discharge valve
Deck filling valve
Tank suction valve
None above
112. Fire detecting and extinguishing
equipment is required on all ......
a. Cargo vessels
b. Passanger vessels on international
voyage
c. Vessels over 150 feet in lenght
d. Vessels over 450 feet in lenght
e. Cruise boats
113. The lubricant is expected
to have the qualities of .......
a.
b.
c.
d.
e.
Preventing metal to metal contact
Causing metal to metal contact
Decrease friction
Decrease friction wear
All expect B
114..........Should be followed as a
procedure, if it is necessary to pump
bilges while a vessel is in port
a.Pumping only if discharge is led to a shore
tank or barge
b. Pumping only during the hours of
darkness
c. Pumping only on the outgoing tide
d. Pumping only as much as is necessary
e. Pumping only the day hours
115. .........should be considered as a
hazard on the propeller and a through
examination and repair will be carried
out when the vessel is in dry dock
a.
b.
c.
d.
e.
Bent blades
Signs of cracks on the blade edge
Deep pits and holes
Edge cracks
All above
116. Considering the fuel ignition
quality is determined by .........
a.Cetane number
b. Diesel index
c. Calculated cetane index
d. Flash point
e. All except D
117. How often should the emergency
diesel be run under load?
a.
b.
c.
d.
e.
Once a year
Once a month
Once a week
At survey time only
At drydock
118. The main charecteristics of
a diesel engine is:
a. Internal combustion engines; the fuel is
burned external of the cylinders
b. Producing high power of energy
c. Either 2 or 4 stroke, fuel is burned inside
the cylinder
d. Economical in compare with the steam
engines, but hard maintenance
e. Fixed sequence of events within its
unique type
119. On a diesel engine a freshwater
heat exchanger is used rather than a
saltwater one to:
a.
b.
c.
d.
Maintain fuel oil temperature
Maintain lub oil temperature
Cut down on rust and corrosion
Keep the engine block from freezing in
cold water
e. Maintain air temperature
120. The upper section of a
piston is called the:
a.
b.
c.
d.
e.
Land
Skirt
Crown
Plate
Disk
121. The suction control switch
on the compressor is a .......
a.
b.
c.
d.
e.
Thermal element
Thermostat
Pressure element
None above
All of above
122. The heat which is used to change
a liquid to a gas or vapor is called latent
heat of...
a.
b.
c.
d.
e.
Absorbtion
Fusion
Liquid
Evaporization
Fission
123. As freon leaves the
expansion valve .........
a.
b.
c.
d.
e.
Pressure increases – volume increases
Pressure decreases – volume increases
Pressure decreases – volume decreases
Pressure increases – volume decreases
Pressure increases – no change in the
volume
124. An overheated bearing in the
main propulsion unit is indicated by:
a.
b.
c.
d.
Bubbles in the sight glass
Sludge in the strainers
A high oil level in the sump
Low temperature of the lube oil leaving
the bearing
e. High temperature of the lube oil leaving
the bearing
125. Emulsification of oil will
occur when mixed with:
a.
b.
c.
d.
e.
Air
Water
Black oil
Ice cream
Oxygen
126. The liner which has no direct
contact with the cooling water is what
kind of a liner
a.
b.
c.
d.
e.
Wet
Dry
Integral
None of the above
Cooled with lubrication oil
127. What statement is not true
regarding boilers
a. Boilers produce steam for machinery
b. Boilers are used for main propulsion plant
c. Boilers can be classified as fire tube and
water tube
d. Boilers can be found on all motor vessels
e. Boiler feedwater is circulated by a
feedwater pump in all boilers
128. A scotch marine boiler
does not have:
a.
b.
c.
d.
e.
Furnace
Manhole
Smoke tubes
Burner
Drums
129. What statement is not true
regarding tubes of a fire tube boiler
a.
b.
c.
d.
e.
All the tubes are made of heat-resistant metal
All the tubes are surrounded by water
All the tubes immersed in water
All the tubes are mounted vertically
The hot gases pass through these tubes
130. What gives the
characteristic of fire tube boilers
a. Fire tube boilers have less water capacity
b. Fire tube boilers are used for low
pressure
c. Fire tubes boilers are more conductive
d. Fire tube boilers can steam up in a short
time
e. Fire tube boilers are used on oil tankers
131. “Diffuser plate, atomizer, air
register” These terms are related to:
a.
b.
c.
d.
e.
Steam drum
Header
Burner
Downcomer
Water drum
132. The moisture is removed
from the steam by means of
a.
b.
c.
d.
e.
Downcomer
Generating tubes
Water drum
Steam drum
Waterwall tubes
133. The purpose of
attemperator is:
a. To remove the impurities from the feedwater
b. To reduce the temperature of superheated
steam
c. To supply heat recovery
d. To remove non-condensable gases from boiler
e. To remove all moisture from the steam
134. What is used for reducing the
temperature of steam for auxiliary
machinery?
a.
b.
c.
d.
e.
Superheater
Deaerator
Soot blower
Atomizer
Desuperheater
135. Non-condensable gases are
removed from the condenser by:
a.
b.
c.
d.
e.
Air heater
Air ejector
Desuperheater
Attemperator
Deaerator
136. The function of a deaerator
is :
a. Acting as a storage tank to keep water
level
b. Keeping a constant pressure on the feed
system
c. Keeping water free of air
d. Acting as a contact feed heater
e. all
137. What statement is not true ?
a. Soot blower keeps clear of combustion
residues
b. De-aerator keeps water free of air
c. Air ejector removes non-condensable gases
from economizer
d. Superheater removes the moisture from
steam.
e. Attemperator reduces the temperature of
superheated steam
138. “Raw water is not pure
enough to use in boiler”
What word can be exactly used
instead of underlined word?
a.
b.
c.
d.
e.
Treated
Untreated
Dilute
Dissolved
Salt
139. The dissolved salts in
feedwater may cause:
a. Reduction in heat transfer by scale
formation
b. Hardness
c. Caustic cracking
d. Tube failure from overheating
e. all
140. Caustic cracking is the
result of:
a.
b.
c.
d.
e.
Foaming
Priming
Excess of alkaline salts
Suspension
Leakage
141. pH Value is achieved by
adding:
a.
b.
c.
d.
e.
Hydrazine
Coagulant
Sulphure
Chloride
Magnesium
142. Corrosion within boiler is
prevented by:
a.
b.
c.
d.
e.
Polymer treatment
Adding anti-foam
Deaeration
Amine treatement
Adding coagulants
143. Scale and sludge formation
is prevented by:
a.
b.
c.
d.
e.
Neutralizing amines
Filming amines
Polymer treatment
Keeping pH value
Deaeration of the boiler by hydrazine
144. “The dissolved gases
adhere to the heating surfaces”
What word can be exactly used
instead of underlined word?
a.
b.
c.
d.
e.
Corrode
Stick
Contaminate
Crack
Suspend
145. ........is the first to do when
securing an AC generator.
a. Tripping the generator circuit breaker
b. Switching the voltage regulator to manual
c. Decreasing the field excitation to
minimum
d. Reducing the load on the unit
e. Increasing the load on the unit
146. The system used for breaking
scale from the evaporator coil while the
evaporator is in operation is called:
a.
b.
c.
d.
e.
Recirculating
Blowing down
Craking off
Dumping
None of above
147. This gauge measures both
inlet and outlet pressures of a
strainer
a.
b.
c.
d.
e.
A compound gauge
A duplex gauge
A biogauge
A pressure/vacuum gauge
None of the above
148. In a four stroke engine 2
revolution of the crank is
completed within the angle of.....
a.
b.
c.
d.
e.
720°
360°
180°
90°
45°
149. What will happen to a small diesel
engine that is equipped with an “auto
type” thermostat if the bellows develop
a hole in it?
a.
b.
c.
d.
e.
The engine will overheat
The engine will remain cold
The engine will remain not start
The cooling water will “by pass” the engine
None of the above
150. ..........are the common parts
within the 2 and 4 stroke diesel
engines
a. Piston, valves, cylinder, fuel injector
b. Crankshaft, crosshead, cylinder
c. Turbocharger, piston, gudgeonpin,
cylinder
d. Crankshaft, connecting rod, pistons
e. Cylinder, connecting road, pistons
151. If the flow of water from a
centrifugal pump is stopped by closing
the discharge valve with the pump
running
a. The relief valve will open
b. The water pressure will stabilize at shut off
head
c. The water pressure will tend to rise continously
d. The driver will be over loaded
e. The water temperature will tend to decrease
continously
152. Which factor below is not
the cause of vibration and noise
in turbines
a.
b.
c.
d.
e.
Unbalance
Distortion of casing
Loose couplings
Tight couplings
Any above
153. All refrigerator compressor
valves are opened and closed
via .......
a.
b.
c.
d.
e.
Springs
Camshaft
Pressure differantial
A or C
None above
154. Flashlights used aboard
tankers must be ........
a. Waterproof
b. Of the three cell type
c. Approved by the board of fire
underwriters
d. All above
e. A and C
155. When distilling salt water the coolingwater discharge from the distiller is fed back
to the evaporator as feedwater:
a. To cut down on the amount of cooling water
needed
b. To prevent an excess amount of cooling water
from being discharged to the bilges
c. To supply hot water to the evaporator for more
economical operation
d. To supply sufficient amount of sea water
e. None of the above
156. A spring bearing on the
line shaft is lubricated by:
a.
b.
c.
d.
e.
The lub oil gravity tank
Water leak off from the stern tube
An oil ring and scraber
The main lube oil pump
Any above
157. Which of the following actions should
you take to correct a low condensing
pressure in a refrigeration system?
a.
b.
c.
d.
e.
Purge the condenser
Remove refrigerant
Adjust the thermostatic expansion valve
Increase the compressor speed
Add refrigerant
158. Pre-ignation can be caused by
........ in an operating diesel engine
a.
b.
c.
d.
Excessively late fuel injection
Oil in the air charge
Water in the fuel
Injection continuing after the fuel charge
is ignited
e. None above
159. A ball bearing will
overheated if:
a.
b.
c.
d.
e.
Completely full of grease
Half full of grease
In use for a long time
Operated at high speed
Operated at medium speed
160. One horsepower equals.....
a.
b.
c.
d.
e.
1000 watts
746 watts
100 watts
940 watts
786 watts
161.Emergency generators are
placed ........
a. Near the machinery spaces
b. Above the bulkhead or freeboard deck
whichever the higher
c. Midships near the engine room casing
d. Above the deep load line
e. None above
162. Which one is not identical with
the characteristic of the construction
of a 2-stroke diesel engines
a. Instead of valve holes, ports are installed
b. A cycle is completed in 2 strokes of the
piston
c. Produce high power in compare with 4
stroke engines
d. The maintenance is simple
e. A cycle is completed in 2 revolution of the
crankcase
163. Which of the following is not
one of the parts of D/G overhaul?
a.
b.
c.
d.
e.
Valve rotator
Valve spindle
Intake valve
Valve seat
Starting valve
164. The purpose of an
evaporator is to ........
a.
b.
c.
d.
e.
Transmit the latent heat of fusion
Transmit the latent heat of evaporation
Absorb the latent heat of evaporation
Asorb the latent heat of fusion
Any above
165. Which of the following is
not used for oil seperation
a.
b.
c.
d.
e.
Settling tank
Filters
Purifier
Centrifuge
incinerator
166. Which statement is not true
concerning centrifuges
a. Centrifuges are used for oil seperation
b. A centrifuge contains a bowl and conical
discs
c. Centrifuges make use of the centrifugal
force
d. Centrifuges are hydrolic-driven devices
e. Centrifuges are used to remove coarse
particals and waters
167. Which of the following oil
seperation units makes use of
gravity
a.
b.
c.
d.
e.
Clarifier
Purifier
Settling tank
Filter
Centrifuge
168. Which statement is not true
regarding the compressed air?
a. Air compressor supply the compressed air
b. The air at the pressure of 20-30 bar is
required to start the engine
c. The compressed air is stored in air receiver
d. Compressed air is used only for engine starts
e. The pressure of control air is 7 bars
169. What is not a component
of two-stage air compressor
a.
b.
c.
d.
e.
Suction valve
Throttle valve
Cooler
Discharge valve
Drain valve
170. What statement is not true
regarding air receivers?
a. The pressure of air is 20-30 bar
b. The receiver must store enough air for twelve
engine starts
c. The pressure inside is controlled by a pressure
gauge
d. The air receivers are self-cleaning devices
e. Drain valves are fitted to drain impurities
171. Air receivers are not fitted
with;
a.
b.
c.
d.
e.
Pressure gauge
Reducing valve
Drain valve
Relief valve
Strainer
172. Air receivers are protected
against high pressure by;
a.
b.
c.
d.
e.
Pressure gauge
Reducing valve
Relief valve
Drain valve
Silencer
173. Using a semi- permeable
to retain salt and impurities from
sea water is:
a.
b.
c.
d.
e.
Distillation
Evaporation
Vaporization
Condensation
Reverse osmosis
174. Seawater is pumped into
fresh water generation unit by:
a.
b.
c.
d.
e.
Booster pump
Ejector pump
Distilate pump
Sanitary pump
Transfer pump
175. What process is not related
to fresh water generation?
a.
b.
c.
d.
e.
Reverse osmosis
Distilation
Evaporation
Compression
Condensation
176. The feed water is
evaporated in the evporator by
means of :
a.
b.
c.
d.
e.
Brine ejector
Condenser
Ejector pump
Air ejector
Cylinder cooling water
177. What part is not included in
the refrigeration system?
a.
b.
c.
d.
e.
Receiver
Condenser
Ejector
Cold rooms
Thermostatic expansion valves
178. The evaporating pressure
is maintained constant in the
refrigeration system by:
a.
b.
c.
d.
e.
Evaporator
Cooler
Receiver
Compressor
Thermostatic expansion valve
179. Ammonia is extremely toxic”
What word can replace the
underlined word
a.
b.
c.
d.
e.
Harmless
Poisonous
Perishable
Raw
Corrosive
180. Air conditioning system
does not involve:
a.
b.
c.
d.
Heating the air
Ventilating
Compressing the air
Cooling the air
181. What system is directly
related to the crew’ s working
conditions?
a.
b.
c.
d.
e.
Air compression
Bilge
Air conditioning
Fresh water generation
Refrigeration
182.To prolong the storage life
of foodstuff by lowering
temperature is:
a.
b.
c.
d.
e.
Air conditioning
Evaporation
Refrigeration
Condensation
Distilation
183. What statement is not true
concerning centrifugal pump?
a. Centrifugal pumps are self-priming
b. Centrifugal pumps may be classified as
single stage and multi stage
c. They have rotating impeler keyed to shaft
d. Centrifugal pumps are mostly driven by
electric motors
e. Their casing have a suction inlet and
discharge outlet
184. What statement is not true
concerning reciprocating pump?
a. They are positive displacement pumps
b. They may be used as boiler feed pump,
bilge or fuel oil pump
c. They are designed as single acting or
double acting
d. They are very common on motor ships
e. Their pumping action is done by a ball
185.Trawlers, whaling ships and
purse seiners are in the category
of.........
a.
b.
c.
d.
e.
Pleasure crafts
Fishing vessels
Passenger ships
Naval ships
Excursion ships
186. The sequence of events in a cycle within 4 stroke diesel
engine is:
1.The piston is forced down at BDC (Bottom dead
center) exhaust valve opens
2.The piston is at the top of its stroke, TDC(Top dead
center), inlet valve opens, fresh air is drawn
3.Pressure is high in the gases
4.Fuel is injected as the piston is reaches TDC, to start the
combustion
5.Inlet valve opens, fresh air drawn as the piston moves down
6. At the bottom of the stroke BDC inlet valve closes and the
air in cylinder is compressed as the piston rises
a.
b.
c.
d.
e.
2-5-6-4-3-1
2-5-6-4-1-3
2-6-5-4-3-1
5-2-4-6-3-1
5-2-6-4-1-3
187. An overspeeding diesel
engine could best be stopped by:
a. Disconnecting the battery cables from the
starting motor
b. Draining the cooling water
c. Draining the hydrolic fluid from the
governor sump
d. Blocking the flow of cooling air to the
radiator
e. Blocking the air intake and securing the
fuel supply
188. The cylinder cover is tightened
against liner with studs.
What word can be used instead of
the underlined word?
a.
b.
c.
d.
e.
Removed
Replaced
Screwed
Slackened
Supported
189. The motion of the piston in
the cylinder is;
a.
b.
c.
d.
e.
Rotary
Axial
Bending
Fluctuating
Reciprocating
190. “The intake valve is open and
exhaust valve is closed. The air is
drawn into cylinder while the piston
is moving downward” defines
a.
b.
c.
d.
e.
Power stroke
Compression stroke
İntake stroke
Exhaust stroke
Combustion
191. In two stroke engines , if the
engine has exhaust valve(s), it is a
.............scavenged engine
a.
b.
c.
d.
e.
Cross flow
Non-flow
Overflow
Loop
uniflow
192. Having an unstarting
compressor must take you think
the possibility of ..........(?)
a.
b.
c.
d.
e.
No charge of liquid in the system
Closed selenoid valves
A and b
None above
Having sufficient amount of air
193. The pump type using a piston
or plunger to remove the fluid;
a. Rotary vane pump
b. Gear pump
c. Reciprocating positive displacement
pump
d. Screw pump
e. Centrifugal pump
194. To remove the impurities
and water droplets from oil,
...........are used on board a ship
a.
b.
c.
d.
e.
Purifiers
Clarifiers
Centrifuges
Seperators
All
195. ........is the control of
temperature and humidity in a
space together with the circulation,
filtering and refreshing of the air.
a.
b.
c.
d.
e.
Refrigeration
Air conditioning
Ventilation
Cooling
Circulating
196. While making your rounds, you
notice the main lube oil temperature is
higher than normal. To remedy this
situation, you should:
a. Speed up the main lube oil pump
b. Open the lube oil cooler seawater inlet valve
wider
c. Throttle in on the lube oil cooler seawater
discharge valve
d. Close the lube oil cooler seawater discharge
valve wider
e. Open the lube oil cooler seawater discharge valve
wider
197. .......the fire pumps are at work.
What word can be used instead of
underlined part?
a.
b.
c.
d.
e.
İnoperable
Operable
In operation
Arranged
Out of order
198. Oily water seperators are used
to seperate oil from bilge water........
The bilge water is pumped........
a.
b.
c.
d.
e.
After / overboard
Before / overboard
Before /inboard
After / out
When / aboard
199. On most diesel engines, the
governor controls the speed by:
a. Controlling the amount of fuel injected
into the cylinders
b. Varying the speed of the turbocharger
c. Adjusting the compression ratio
d. Changing the timing of the fuel injection
camshaft
e. Changing the timing of the exhaust
valves
200. What word is not related to
cargo handling equipment?
a.
b.
c.
d.
e.
Filler
Derrick
Hoisting
Jib
Crane
201. Any electric motor can be
constructed to be ........proof.
a.
b.
c.
d.
e.
Short
Ground
Explosion
Overload
A and b
202. In the incident of oil fire
...........
a. Get water on deck
b. Open steam or Co2 smothering system to
cargo holds
c. Close off all ventilation, blowers, doors
etc.
d. Open Co2 smothering system to cargo
holds
e. All above
203. Which one is not treated
on board?(?)
a.
b.
c.
d.
e.
Sewage
Feed water
Fresh water
Lube oil
Balast water
204. When the seperated oil is
burnt by an ......., the application is
recorded in Oil Record Book.
a.
b.
c.
d.
e.
Oily water seperator
Ejector
Incinerator
Chlorinator
Aeration chamber
205. If one cylinder was getting
more fuel then others the effect
will be .........(?)
a.
b.
c.
d.
e.
That cylinder’s being overloaded
The exhaust valve’s being overheated
Average compression
Incomplete combustion
Complete combustion
206. The removal of
contaminating impurities from
lubricating oil will ......
a.
b.
c.
d.
e.
Increase engine wear
Decrease engine wear
Increase possible breakdowns
Decrease possible breakdowns
B ve d
207. A propulsion diesel engine
is normally shut down by ........
a.
b.
c.
d.
e.
Shutting off the air supply
Overspeeding the engine
Securing the fuel supply
Securing the ignition system
All above
208. Sediment collects in a
tubular purifier:
a.
b.
c.
d.
e.
On top cover
In drain line
On sides of bowl
On the discs
None of above
209. “Water hammer” is caused by:
a.
b.
c.
d.
e.
Hitting water pipe with hammer
Too much water in pipe line system
Water in steam line
Steam in water lines
Few amount of water in pipe line system
210. The valve which is always
partially open when the evaporator
is in operation is the:
a.
b.
c.
d.
e.
Vapor valve
Continous blowdown valve
Bottom blowdown valve
Surface blowdown valve
Fresh water valve
211. What kind of bolts would
you use on a saltwater line?
a.
b.
c.
d.
e.
Cold rolled
Brass
Cast iron
Plastic
All of the above
212. Studs and nuts intended for
use in main steam line flanges and
fittings are marked with an “H” or a
“T” to show they are:
a.
b.
c.
d.
e.
Heat resistant
Hard finished
Half threated
Corrosion resistant
Fire proof
213. An advantage of aluminium
pistons compared to cast iron
pistons is:
a.
b.
c.
d.
e.
Greater high temperature strenght
Greater weight per cubic meter
Increased resistance to wear
Low temperature strenght
Better heat conductivity
214. What harmfull
consequence can result from
sludge in the lube oil system of
a trunk piston diesel engine?
a.
b.
c.
d.
e.
Clogged oil pump section screens
Increased oil temperature
Stuck piston rings
Any of the above
None of the above
215. The air supplied to the
cylinder by a turbocharger is often
reduced in volume by a/an
a.
b.
c.
d.
e.
Air compressor
Diffuser
Filter
Venturi
Aftercooler
216. Insufficient refrigerant in
a refrigeration plant on board a
ship may result in:
a.
b.
c.
d.
e.
High discharge pressure
Frosting of the crankcase
High temperature of the overboard water
Low section pressure
Low temperature of the sea water
217. The thermostatic expansion
valve of R-22 or R-134a
refrigeration system controls the:
a. Back pressure in the evaporator coils
b. Temperature in the refrigerated space
c. Superheat in the refrigerant leaving the
evaporator
d. Refrigerant pressure in high side
e. Temperature in the condenser
218. Which valve is normally closed
when charging an R-22 or R-134a
refrigeration system through the
high side?
a.
b.
c.
d.
The thermal expansion valve
The dehydrator inlet valve
The suction line valve
Both the thermal expansion valve and
dehydrator inlet valve
e. The liquid line king valve
219. When operating at high or low
speed in the use of nozzles in a
turbine, attention and precaution
must be taken that .......
a. The nozzles in use should be wide open
b. Operation with a few nozzles as it’s
economical
c. The nozzles not in use must be tightly
closed
d. All above
e. Only a and b
220. ..........protects the pump shafts
from erosion, corrosion and wear
a.
b.
c.
d.
e.
Wearing rings
Renewable sleeves
A hardened metal coating
İnternally flooded lantern rings
Lantern rings
221. An electric heater built into the
cylinder water jacket would be used
to:
a. Raise lube oil viscosity for easier starting
in cold water
b. Increase air inlet temperature
c. Increase compression ratio
d. Increase jacket water temperature for
easier starting in cold weather
e. Heating compressed air
222. A cracked cylinder head on a
diesel engine could be indicated by:
a. Excessive lube oil consumption
b. Water draining from the fuel leakoff
valves
c. Excessive fuel oil consumption
d. Excessive cooling water consumption
e. Combustion gases venting at the
expansion tank
223. “manometer” measures:
a.
b.
c.
d.
e.
Air pressure
Steam pressure
Oil pressure
Water pressure
Oil temperature
224. In a 2 stroke engine each
revolution of the crank is completed
within the angle of .....
a.
b.
c.
d.
e.
360º
180º
720º
90º
45º
225. When does a two stroke
cycle diesel engine produce a
power stroke in each cylinder
a. Once in every 2 revolutions of the
crankshaft
b. Once for every 4 stroke of the piston
c. Once for every 2 stroke of the piston
d. Directly after the exhaust stroke
e. None of the above
226. A steam turbine has curved
blades. What word can be used the
opposite of the underlined word?
a.
b.
c.
d.
e.
Straight
Flat
Sharp
Smooth
Vertical
227. Which of the followings is not
one of the qualities of the governor?
a. The main control device on the engine
b. Controls the engine speed when the
power is required to change
c. The supplementery control device on the
engine
d. Can be adjusted automatically
e. Made up speed sensing arrangement and
hydrolic unit
228. “The intake valve is open and
exhaust valve is closed. The air is
drawn into the cylinder while the
piston is moving downward”defines;
a.
b.
c.
d.
e.
Power stroke
Compression stroke
İntake stroke
Exhaust stroke
Combustion
229. All diesel lubricating
system must:
a. Have a forced feed mechanical lubricator
b. Prevent oil fog in the crankcase to avoid
crankcase explosion
c. Provide oil for cooling the piston and
cylinder wall
d. Provide a film of oil between the piston
and cylinder wall
e. None of the above
230. The main components of
crankshaft assembly are webs, pins
and journals. What word can be
used instead of the underlined
word?
a.
b.
c.
d.
e.
Purposes
Sides
Parts
Types
Means
231. What is not a rotary pump
type?
a.
b.
c.
d.
e.
Screw
Gear
Lobe
Vane
Reciprocating
232. ...... Are not self-priming
pumps
a.
b.
c.
d.
e.
Screw pumps
Reciprocating pumps
Gear pumps
Centrifugal pumps
Rotary positive displacement pumps
233. Any device used to
regulate or stop the flow of
liquid in a piping system is:
a.
b.
c.
d.
e.
Pump
Valve
Ejector
Separator
Heat exchanger
234. .......is not a valve type?
a.
b.
c.
d.
e.
Relief valve
Stop valve
Throttling valve
Check valve
Return valve
235. Metal made by combining
two or more methalic elements is:
a.
b.
c.
d.
e.
Monel
Alloy
Cast
Forged
Malleable
236. Which of the following
valve types is not a stop valve?
a. Ball valve
b. Globe valve
c. Relief valve
d. Butterfly valve
e. Gate valve
237. What statement is not
true regarding butterfly valves?
a. Butterfly valves are stop valves
b. Butterfly valves are small, quick-acting
valves
c. Butterfly valves can be used for throttling
d. Butterfly valves can be uesd in water
systems and lube systems
e. A spherical disc is used open and close
the valve
238. To control the supply of
expandable fluids such as
compressed air, steam, a .....is used
a.
b.
c.
d.
e.
Cock
Stop valve
Throttling valve
Relief valve
Drain valve
239. To discharge excess pressure
in a piping system, a .....used
a.
b.
c.
d.
e.
Ball valve
Stop valve
Relief valve
Throttle valve
Check valve
240. What associate is not true?
a.
b.
c.
d.
e.
Air conditioning-cold room
Oil seperation – clarifier
Pump – positive displacement pump
Valve – non-return valve
Fresh water generation - evaporator
241.Marine electrical equipment
are:
a.
b.
c.
d.
e.
Generators
Motors,
Batteries,
Switchboards,
all
242. The machine that
generates electrical energy is:
a.
b.
c.
d.
e.
Generator,
Electric motor,
Battery,
Transformer,
rectifier
243.
a.
b.
c.
d.
e.
The machine that converts
the electrical energy into
mechanical energy is a:
Generator,
Motor,
Armature,
Transformer,
stator
244. Which of the following
parts is not of a generator?
a.
b.
c.
d.
e.
Rotor,
Stator,
Flywheel,
Winding,
Armature
245.
a.
b.
c.
d.
e.
What part of generator is
not rotating?
Rotor,
Armature,
Rotorshaft,
Slip rings,
stator
246. The parts of generator that
connect the high output voltage to
the external circuit are:
a.
b.
c.
d.
e.
Coils,
Rotors,
Slip rings and brushes,
Stators,
Armatures
247. What cools the
generator by dissipating heat in
the generator frame?
a.
b.
c.
d.
e.
Rotor assembly,
Stator assembly,
Brushes,
Fan assembly,
Coils of wire
248.
a.
b.
c.
d.
e.
Which of the following
devices are loads?
Alternator,
Wires,
Distribution panel,
Motor,
Coil
249.
a.
b.
c.
d.
e.
What is a part of marine
electrical distribution?
DC motors,
Shaft generators,
Alternator,
Emergency switchboard,
AC motors
250. What statement is not
true regarding switchboards?
a. Switchboards distribute electric power,
b. There are feeders that extend from
switchboard to the distribution panels,
c. Switchboards are divided into sections by
busbar isolators,
d. Switchboards receive power directly from
transformer,
e. Switchboards are connected to the panels
and circuits
251. What is used to seperate
operating electrical equipment from
the rest of the electric system
a.
b.
c.
d.
e.
Busbars,
Emergency switchboard
Batteries,
Branch circuits,
Circuit breakers and fuses
252. Voltage generated by an
alternator is reduced by:
a.
b.
c.
d.
e.
Fuse,
Circuit breaker,
Batteries,
Flywheel,
Transformer
253.
a.
b.
c.
d.
e.
The voltage generated
by an alternator is:
110 V.,
440 V,
220 V,
680 V,
120 V.
254. What statement is true
regarding DC motors?
a. DC motors are more common than AC
motor,
b. DC motors are easy to maintain,
c. DC motors are less expensive than AC
motors,
d. DC motors have the constant speed
characteristic,
e. DC motors run on the principles of
attraction and repulsion of magnetism
255. What statement is not
true regarding AC motors?
a. AC motors consist of two main assemblies :
rotor and stator,
b. Rotors in an AC motor are turned by magnetic
field,
c. The rotating field in an AC motor induces
electromotor force,
d. AC motors operate on direct current,
e. Single-phase AC motors are also called
squirrel cage motors
256.
a.
b.
c.
d.
e.
What can be a source of
electric power?
An electric motor,
A fuse,
A battery,
A control panel,
A rotor.
257.“electrolite, anode, electrode”.The
terms are related to a:
a.
b.
c.
d.
e.
Cell,
Fuse,
Coil,
Pole,
Stator
258. What is the solution that
reacts with the electrodes?
a.
b.
c.
d.
e.
Battery,
Electrolyte,
Cell,
Anode,
Lead.
259. A lead-acid battery of 6
cells can give the voltage of;
a.
b.
c.
d.
e.
2,2 V,
7 V,
12 V,
1,4 V,
6 V.
260. What statement is not
true regarding electrolyte?
a. The electrolyte reacts with the electrodes
b. The electrolyte provides a path for
electron flow,
c. It may be a salt, an acid, or an alcaline
solution,
d. Electrolytes are non-conducting
materials,
e. It can be a liquid or dry substance.
261 ......is a process, in which the
temperature of a space on whatever
take place in, is reduced below that
of their surroundings
a.
b.
c.
d.
e.
Refrigeration,
Air conditioning
Ventilation,
Heating,
freezing
262. Under normal operational
conditions, the rudder is
hydraulically locked unless....
a. The manual trick wheel is engaged for
steering,
b. The pump is off stroke,
c. A normal rudder order is given by the
control system,
d. An electric power failure occurs at the
steering gear,
e. A and B
263. Static electricity is most
often produced by.......
a.
b.
c.
d.
e.
Pressure,
Heat,
Magnetism,
Friction,
Motion.
264. When vacuum is lost on a
turbo generator the trip is actuated
by........
a.
b.
c.
d.
e.
Sentinel valve,
Back pressure,
Slugs of water,
Overspeed trip,
A and B
265. Supposing a fire caused by
short electric circuit within the
equipments is categorized as a ......
Fire and will be extinguished via
......
a.
b.
c.
d.
e.
Class A / Foam,
Class C / Chemical powder,
Class C / Co2
Class B / Foam,
Class A / Chemical powder
266. .......is used as a fire
extinguisher in case of fires resulted
from electrical equipment.
a.
b.
c.
d.
e.
Soda acid,
Co2,
Sand,
Foam,
C and D
267. With a reciprocating pump,
failure to deliver liquid may be
caused by.....
a.
b.
c.
d.
e.
Pump not being primed,
Discharge head too high,
Liquid plunger packing worn,
Any of the above,
Only A and B
268. Which of the following isn’ t
a component of a water tube
boiler?
a.
b.
c.
d.
e.
Burner,
Header,
Downcomer,
Steam drum,
Booster pump
269.Any automatic sprinkler, fire detection and fire alarm system
shall be capable of immediate operation at all times and no action by
the crew shall be necessary to set it in operation. Each section of
sprinklers shall include means for giving a visual and audible alarm
automatically whenever any sprinkler comes into operation. Sprinkler
shall be grouped into seperate sections, each of which shall contain
not more than 200 sprinklers. Each section shall be capable of being
isolated by one of stop valve only. A gauge indicating the pressure in
the system shall be provided at each section stop valve and a central
station. The sprinklers shall be resistant to corrosive by marine
atmosphere. In accommodation and service spaces the sprinklers
shall come into operation within the temperature range from 68°C to
79°C. A list or plan shall be displayed at each unit and suitable
instructions for testing and maintenance shall be available.
Sprinklers shall be placed in an overhead position to maintain an
avarage application rate of not less than 51 m²/min. over the area
covered by sprinklers. According to the passage, it isn’t true that;
a. The sprinklers can be affected by marine
atmosphere,
b. They will be in an overheaded position to
maintain the average application,
c. The pressure in the system is displayed by
a pressure gauge,
d. Sprinkler system is used either fixed or
mobile on board,
e. The system shall be divided into sections
270. “The quantity of oil in seperated
water is controlled by a control unit”
what sentence below has the same
meaning?
a. Control unit controls the oil quantity and seperate it,
b. The quantity of oil is seperated and controlled by
control unit,
c. The oil quantity in water is seperated by control unit,
d. Control unit controls the oil quantity in seperated
water,
e. Seperated water in oil is controlled by control unit.
271. The turbocharger of an
auxiliary diesel engine is most
effected by:
a.
b.
c.
d.
e.
Air inlet manifold pressure,
Engine speed,
Exhaust temperature,
Engine load,
None of the above
272. Deck machinery is used
for;
a.
b.
c.
d.
e.
Mooring,
Seamenship applications,
Anchoring,
Cargo handling,
all
273. ......is not a drive type used
for deck machinery.
a.
b.
c.
d.
e.
Electric,
Hydrolic,
Hydrolic-electric,
electric,
Electronic.
274. ...... İs not a component of
a mooring winch.
a.
b.
c.
d.
e.
Warp end,
Spur gear,
Motor,
Friction break,
Drum.
275. Wildcat is a component of;
a.
b.
c.
d.
e.
Capstan,
Drum,
Windlass,
Derrick,
Mooring winch.
276. The function of wildcat is;
a.
b.
c.
d.
e.
Gripping the anchor chain,
Stopping the slipping of anchor
Handling the mooring line,
Hoisting the jib,
Warping the lines.
277. What is not included in
anchoring arrangement?
a.
b.
c.
d.
e.
Anchore chain,
Chain locker,
Jib,
Hawse
Windlass
278. The height of derrick is
fixed by;
a.
b.
c.
d.
e.
Mooring line,
Jib,
Topping wire,
Forward line,
Luffing wire.
279. What statement is not true
regarding derricks?
a.
b.
c.
d.
e.
Derricks are operated by winches,
Derricks will be designe fixed or slewing,
Derricks are fitted on deck,
Derricks are used only for cargo handling,
Derricks can rotate through 360°
280. What do you understand
by “hoisting”?
a.
b.
c.
d.
e.
Rotating the crane,
Slewing the derrick,
Lowering the jib,
Letting out the line,
Lifting the load
281. What statement is not true
regarding cranes?
a. Cranes can rotate through 360°,
b. Cranes are more modern cargo handling
devices,
c. Cranes can lift up to 50 tonnes,
d. Cranes are driven by cargo winches,
e. Cranes are located on deck for cargo
handling
282. “jib, hatch, derrick”. The
terms are related to;
a.
b.
c.
d.
e.
Mooring,
Anchoring,
Steering,
Cargo handling,
Berthing.
283. Watertightness of the
closed hatch covers is
accomplished by;
a.
b.
c.
d.
e.
Roller,
Jointing strip,
Spindle,
Hinge,
Capstan.
284. Bow thrusters;
a. Are not used for improving manoeuvring
capability,
b. Are not controlled by bridge,
c. Are not located at the end of ship,
d. Do not have any motor drive,
e. Do not enable the ship more
manoeuvrable.
285. What statement is not true
regarding ram type transmission
unit in steering system?
a. The rams operate the tiller,
b. Each cylinder has a variable delivery
pump,
c. The tiller is keyed to the rudder stock,
d. The slipper ring is attached to the
telemeter unit,
e. The unit is electric-driven
286. The Ward-Leonard system
is;
a.
b.
c.
d.
e.
An electric-driven cargo handling method,
A hatch cover folding system,
A hydraulic steering system,
An electric-driven steering system,
An automatic watertight door system.
287. I-Tiller, II-Rudder, III-Jib, IVHatch Coaming, V-Ram
the components of steering system
are;
a.
b.
c.
d.
e.
I-II-IV
III-V,
I-II-V,
I-IV-V,
III-IV-V
288. Steering system keeps the
ship on the steady course.
What word can be used instead
of the underlined word?
a.
b.
c.
d.
e.
Constant,
Variable,
Shifting,
İnappropriate,
Available.
289. ...... İs not included in the
steering gear.
a.
b.
c.
d.
e.
Rudder,
Propeller,
Telemeter,
Transmitter,
Rudder actuator
290. “The movement of rudder is
accomplished by means of the
transmission system.”
What words can replace the underlined
words?
a.
b.
c.
d.
e.
Motion-achieved,
Resistance-supported,
Gear-handled,
Action-suspended,
Motion-gripped.
291. “The control equipment
conveys the signal of desired
rudder angle from bridge”
What word can be replace the
underlined word?
a.
b.
c.
d.
e.
Reflect,
Consist,
Transmit,
Actuate,
Receive.