1.

Always wear …………………………… while working

A. Apron B. respirator C. eye protection
2. A jet engine is an engine with a ………… powered by …………, with the leftover power providing thrust.
A- compressor - a combustor B- rotary turbine - a compressor C- rotary compressor - a turbine
3. This is the most common type of crosshead screwdriver; A tool used to put in cross-head screws.
A. Slotted head screwdriver B. Phillips head screw driver C. Spanner
4. The …………………… is an internal combustion engine that uses air as the working fluid.
A- steam engine B- gas turbine C- hot air engine
5. A jet engine is an engine that ……………………. a fast moving jet of fluid to generate thrust in accordance
with Newton’s third law of motion
A- inputs B- discharges C- absorbs
6. DON’T work with ______ or ___________ hands.
A. greasy , clean B. oily , greasy C. clean , dirty
7. A tool that has an adjustable jaw that tightens to hold tight when torque is applied to handle.
A. Adjustable Wrench B. Ratchet Wrench C. Pipe Wrench
8. The cracking of structural members under repeated stress lower than the ultimate tensile load is known as ….
A- fatigue failure. C- stress reversal.
B- creep.
9. Pliers commonly used for turning and holding nuts and bolts, with a joint adjustable to multiple positions in
order to increase the opening of the jaws.
A. Diagonal Cut Pliers B. Needle Nose Pliers C. Combination Slip Joint Pliers
10. A turbojet engine is smoother running than a piston engine because.
A- the lubrication is better. B- it runs at a lower temperature. C- it has no reciprocating parts.
11. Of the following, which engine type would most likely have a noise suppression unit installed?.
A- Turboprop. B- Turbojet. C- Turboshaft.
12. In a gas turbine engine, the burning gases expand and blast out through …………, at the back of the engine.
A- the combustion chamber B- the nozzle C- the turbine
13. As the jets of gas shoot backward, the engine and the aircraft are ………………….. forward.
A- thrown B- thrust C- blasted
14. This is a chamber where fuel is continuously burned in the compressed air ….
A- Flame holder B- Furnace C- cylinder
15. The efficiency of a gas turbine engine ……………………. at altitude.
A- decreases. B- increases. C- remains constant.
16. What is the purpose of the rudder on an airplane?
A- To control yaw. B- To control overbanking tendency. C- To control roll.
17. A turbojet engine is smoother running than a piston engine because.
A- the lubrication is better. B- it runs at a lower temperature. C- it has no reciprocating parts.
18. Where are the Sump and drain located?
A. In the centre of the tank B. At the lowest point of the tank C. On top of the tank
19. The gravity-feed system utilizes ……………… to transfer the fuel from the tanks to the engine
A. The force of pressure B. vacuum system C. the force of gravity
20. On selecting the BOTH position the engines are fed fuel ………………
A. From the left tank B. from both tanks C. from none of the tanks
21. The minimum 'no smoking' zone around an aircraft when refueling is ……………
A. 100 m B. 100 feet C. 50 feet
22. When an aircraft is fueled from a truck or fuel farm that has not been contaminated, daily draining
A. is not required because fuel trucks and fuel farms may make use of laser contaminant identification
technology.
1
 B. of strainers and sumps is combined with periodic filter changes and inspection to ensure fuel is
contaminant free.
C. is only required if the fuel truck or farm has not been in continuous service.
23. Why is the main fuel strainer located at the lowest point in the fuel system?
A. It traps any small amount of water that may be present in the fuel system.
B. It is near the fuel tank heater to help prevent vapor lock in the system.
C. It filters and traps all micro organisms that may be present in the fuel system.
24. What is the primary purpose of the crossfeed system?
A. It allows any tank to supply fuel to any engine.
B. It bypasses the engine shutoff valve if it fails.
C. It divides the fuel and sends it to the injectors.
25. Which of the following would be most useful to locate and troubleshoot an internal fuel leak in an aircraft fuel
system?
A. Structural repair manual.
B. Orthographic projection troubleshooting tree.
C. Maintenance manual diagrams and descriptions.
26. When defueling an aircraft, which of the following must be accomplished?
A. Defuel inside the hangar when fire suppression is available.
B. Defuel outside the hangar when possible.
C. Always defuel outside the hangar.
27. Integral fuel tanks on transport aircraft are
A. easily removed for service or inspection.
B. constructed of plastic or fiberglass.
C. supported by the aircraft structure.
28. Airframe of an aircraft is its __________ structure.
A. Electrical B. Mechanical C. Hydraulic
29. Why does the landing gear retract into the wings and/or fuselage during flight?
A. To decrease drag B. To decrease airspeed C. To generate more thrust
30. Which of the following is not a part of the airframe?
A. Fuselage B. Stabilizing tail C. Landing gear
31. Jet engines are classified into _______ types.
A. 5 B. 4 C. 3
32. 2. Jet engines works on ______ cycle.
A. Brayton B. Dual C. Otto
33. Newton's First Law of Motion, generally termed the Law of Inertia, states:.
A- To every action there is an equal and opposite reaction.
B- Force is proportional to the product of mass and acceleration.
C- Every body persists in its state of rest, or of motion in a straight line, unless acted upon by some
outside force.
34. A turn coordinator provides an indication of the
A- movement of the aircraft about the yaw and roll axes.
B- angle of bank up to but not exceeding 30°.
C- attitude of the aircraft with reference to the longitudinal axis.
35. The airworthiness of an aircraft can be determined by a preflight inspection and a
A- statement from the owner or operator that the aircraft is airworthy.
B- review of the maintenance records.
C- log book endorsement from a flight instructor.

2
36. Which are the two common classifications applied to fuel systems in airplanes
A. gravity-feed , fuel-pump systems
B. gravity-feed , piston systems
C. fuel-pump systems , vacuum system
37. The control Valve ……..
A. Routes the fluid to the desired actuator.
B. Routes the fluid to the return valve
C. Routes the fluid to the pump
38. It allows selection of fuel from various tanks.
A. The fuel check valve B. The fuel selector valve C. The fuel primer
39. The fuel strainer should be …………….. before each flight
A. Drained B. Replaced C. removed
40. The fuel strainer is a type of …..
A. gauge B. valve C. filter
41. The function of the reservoir ……………..
A. It contains the fluid. B. It dissipates heat from the fluid. C. Both A and B
42. What is used to limit system pressure?
A- Relief valve. B- Check valve. C- Selector valve.
43. are designed to hold, turn and cut objects. They vary in length from 4" to 20". Some are available with factory
applied, plastic-coated handles, providing an attractive appearance and comfortable grip. However, these
should not be relied on
for electrical work.
A. Screwdrivers B. Wrench C. Pliers
44. The efficiency of jet engine as compared to propeller is higher at :
A. High speeds B. High altitudes C. Low altitudes
45. Winglets are used on wings to minimize ………
A. induced drag B. skin friction drag C. profile drag
46. What type of valve is installed in a closed-center hydraulic system?
A- Return valve. B- Check valve. C- Selector valve.
47. What component in a hydraulic system protects against pressure surges?
A- Double-check valve. B- Accumulator. C- Hand-operated pump.
48. The accumulator in a hydraulic system is …………..
A. A heat storage device B. Energy storage device C. Pressure storage device
49. A smooth-jawed adjustable wrench used for turning nuts, bolts, and pipe fittings. Often referred to as a
Crescent wrench.
A. Adjustable end wrench B. Combination wrench C. Vice grip wrench
50. In an engine, what are the spark plugs, inlet and exhaust manifolds bolted to?
A. The cam shaft B. The cylinder block C. The cylinder head assemble
51. Via what means is the crankshaft mounted in the engine?
A. The cam drive mechanism B. The main bearings C. The cylinder head assembly
52. What is used to close the exhaust and inlet valves on a piston?
A- The cam shaft B- The return spring C- The expanding gases
53. The ________ controls the amount of intake and the release of exhaust.
A. coolant B. connecting rod C. valves
54. Clamp firmly onto objects the way a vise does. A knob in the handle controls the width and tension of the jaws.
You close the handles to lock the pliers. You release the pliers by pressing the lever to open the jaws.
A. Vise Grip or Locking Pliers B. Groove-Joint Pliers C. Slip-joint pliers
3
55. A turbo jet engine gives.
A- large acceleration to a small mass of air.
B- large acceleration to a large weight of air.
C- small acceleration to a large mass of air.
56. Newton was the first to theorize that a ………….. explosion could propel ………………. at a great rate of
speed.
A- rearward-channeled - a machine forward
B- forward-channeled - a machine forward
C- rearward-channeled - a machine backward
57. The basic gas turbine engine is divided into two main sections: the cold section and the hot section.
A- The hot section includes the combustor, turbine, and exhaust.
B- The cold section includes the engine inlet, compressor, and turbine sections.
C- The hot section includes the combustor, diffuser, and exhaust.
58. A jet engine derives its thrust by.
A- reaction of the propelling gases.
B- drawing air into the compressor.
C- impingement of the propelling gases on the outside air.
59. What section provides proper mixing of the fuel and efficient burning of the gases?.
A- Diffuser section and combustion section.
B- Combustion section only.
C- Combustion section and compressor section.
60. Gas turbines are suitable for aircraft propulsion because
A- gas turbines are light weight
B- gas turbines have a high power-to-weight ratio
C- all of the above
61. Valve used in a hydraulic system that directs pressurized fluid to one end of actuator while simultaneously
directs return fluid to the reservoir from the other end
A- Selector valve B- Check valve C- Shuttle valve
62. A gas turbine engine comprises which three main sections?.
A- Turbine, compressor, and combustion.
B- Compressor, diffuser, and stator.
C- Turbine, combustion, and stator.
63. What is generally true for titanium alloy?.
A- It is stronger than the aluminium. B- It is stronger than the steel. C- It has lower density than
magnesium.
64. When refueling an aircraft from a tanker, why are the aircraft and tanker bonded together?
A. To enable the aircraft re-fuel pumps to be operated from the tanker electrical supply
B. To maintain the aircraft and tanker at the same electrical potential
C. To discharge static electricity from the aircraft to the tanker
65. The actuator ………………………
A. Converts fluid power from the pump into electricity
B. Converts fluid power from the pump into mechanical work.
C. Converts fluid power from the pump into heat energy
66. Which characteristic apply to aircraft hydraulic system?
A. 100% efficient, easy to maintain, light weight, easy to inspect
B. easy to maintain, light weight, easy to inspect, flammable
C. 100% efficient, easy to inspect, heavy weight, no lag

4
67. Clad aluminum alloys are used in aircraft because they
A. are naturally corrosion resistant, so they do not require corrosion resistant materials for protection.
B. have surface layers of pure aluminum or aluminum alloy bonded to the core material to inhibit
corrosion.
C. are highly corrosion resistant because an oxide film forms on their surfaces upon contact with air.
68. Which parts of a semi-monocoque fuselage prevent tension and compression from bending the fuselage?
A. Ribs and formers. B. Longerons and stringers. C. Bulkheads and skin.
69. Sandwich panels made of honeycomb construction are used on aircraft because this type of construction
A. has a high tensile strength and is non-flammable.
B. has a low weight and is corrosion resistant.
C. saves weight while not compromising strength.
70. On a semimonocoque fuselage, the skin is reinforced by longitudinal structural members called
A. beams and struts. B. longerons and stringers. C. formers and bulkheads.
71. The purpose of wing slats is to
A. reduce stalling speed. B. decrease drag. C. reduce lift.
72. Pure aluminium is :
A. highly resistant to corrosion.
B. not resistant to corrosion.
C. reasonably resistant to corrosion.
73. Which of the following allows fluid to flow unimpeded in one direction but prevents fluid flow in the other
direction?
A. Check valve. B. Sequence valve. C. Relief valve.
74. Which of the following is the most commonly used seal to prevent internal and external leakage in both
directions of a hydraulic unit?
A. O-ring. B. V-ring. C. U-ring.
75. Phosphate ester base hydraulic fluid is very susceptible to contamination from
A. rapid changes in temperature.
B. water in the atmosphere.
C. icing conditions.
76. How can the proper hydraulic fluid to be used in an airplane be determined?
A. By referring to the Pilot Operating Handbook.
B. By consulting the aircraft`s Type Certificate Data Sheet.
C. By consulting the aircraft manufacturer`s service manual.

77. The internal resistance of a fluid which tends to prevent it from flowing is called
A. volatility. B. viscosity. C. stability.
78. What is the purpose of pressurizing the aircraft cabin?
A. To permit the aircraft to operate in thunderstorms.
B. To allow aircraft systems to operate properly.
C. To make human flight possible in the hostile environment of the upper atmosphere.
79. The primary purpose of a fuel tank sump is to provide a
A. way to shut off fuel flow or to route the fuel to a desired location.
B. place for contaminants and water to settle, with a drain valve to remove the impurities.
C. way to manually operate valves on a fuel tank to isolate or direct fuel to a pump.
80. __________ bypass turbo fan engines are used in sub sonic flights.
A. Medium B. Low C. High
81. Turbofans gives more efficiency when the speed is ______ than the mach speed.
A. Greater B. Less C. Equal
5
 82. _________ compressors are used in turbojets.
A. Axial B. Radial C. Axial & Radial
83. ____________ compressors can be used in turbojets.
A. Radial B. Centrifugal C. Radial & Centrifugal
84. Jet engines have ________ shafts.
A. Single B. Multiple C. single or multiple
85. 5. What material is used for aircraft fuselage?
A. Aluminum alloys B. Titanium alloys C. Silver alloys
86. 7. Landing gears are also known as __________
A. Stabilizers B. Empennage C. Undercarriage
87. Which of the following is not true about an airframe made with carbon-fiber composite?
A. Decreases drag B. Decreases thrust C. Higher cabin pressurization
88. Which of the following supports an aircraft on the ground?
A. Rudder B. Engines C. Landing gear
89. What do winglets do?
A. Increase thrust
B. Reduce turbulence at the tips of an airplane’s wings
C. Increase turbulence at the tips of an airplane’s wings
90. The earliest aircraft were constructed primarily of __________
A. Steel B. Aluminum C. Wood
91. Stabilizing tail is also known as __________
A. Rudder B. Empennage C. Aileron
92. Which of the following is not a retraction system for landing gear?
A. Hydraulic retraction system
B. Thermal retraction system
C. Manual retraction system
93. The three critical flight dynamics parameters are?
A. Roll, pitch and yaw B. Roll, pitch and jaw C. Roll, play and yaw
94. Which of the following is not an aerodynamic coefficient?
A. Pressure coefficient B. Absolute temperature C. Lift coefficient
D.
95. Control systems adjust the orientation of an aircraft about its __________
A. Pitch B. Wheels C. Centre of gravity
96. Aircrafts are streamlined from nose to tail to reduce __________
A. Turbulence B. Gravitational force C. Drag
97. Which of the following aircraft systems includes an actuator?
A. Hydraulic systems B. Electronic systems C. Communication systems
98. The combination of ailerons and elevators is called __________
A. Alevon B. Elevon C. Rudder
99. Which of the following is a part of the wing assembly of an aircraft?
A. Edge flaps B. Rudder C. Elevator
100. The primary control of yaw is with the __________
A. Aileron B. Elevator C. Rudder
101. Which of the following is not a secondary control?
A. Ailerons B. Spoilers C. Air brakes
102. What is the rotation about longitudinal axis called?
6
 A. Roll B. Pitch C. Yaw
103. The rudder is a part of __________
A. Undercarriage B. Empennage C. APU
104. Which of the following is not a part of flight control systems?
A. Ailerons B. Elevators C. Radars
105. What is the full form of FBW?
A. Fuel-by-wire B. Force-by-wire C. Fly-by-wire
106. Why are flaps deflected downwards?
A. To increase lift
B. To decrease the effective curvature of the wing
C. To increase the effective curvature of the wing

107. Which of the following axes passes from wingtip to wingtip through an aircraft?
A. Vertical axis B. Horizontal axis C. Transverse axis
108. Airbrakes are used to increase __________
A. Lift B. Drag C. Thrust
109. In hydraulic systems, …………
A. the mechanical energy is transferred to the oil and then converted into mechanical energy
B. the electrical energy is transferred to the oil and then converted into mechanical energy
C. the mechanical energy is transferred to the oil and converted into electrical energy
110. Which of the following is used as a component in hydraulic power unit?
A. pressure gauge B. valve C. reservoir

111. One safety risk of not keeping track of your tools is:
A. Having the tool fall on another person
B. Getting stuck or cut by a hidden pointed or sharp tool
C. Both a and b
112. At the end of a task where you used hand tools, you should:
A. Leave them where they are so they can be used later
B. Turn them in to your supervisor for inspection
C. Put them away in their proper storage place
113. In a turbine engine liquid or gas pushes against ………to cause the shaft to rotate
A. Veins
B. Bloods
C. Vanes
114. The crankshaft that transmits power is the ………………
A. Driven shaft
B. Drift shaft
C. Drive shaft
115. The ………………….. fit tightly against the cylinder wall qnd seal the cylinder’s open end
A. Rings
B. grooves
C. seals
116. The up and down motion of the piston is converted to …………….. to turn the propeller
A. translation motion
B. rotary motion
C. circular motion

7
117. As the crankshaft pulls the piston downward, a partial ……….. is created in the cylinder chamber
A. combustion
B. vacuum
C. compression
118. Before the piston reaches its top position, the fuel and air mixture is …………….
A. compressed
B. released
C. ignited
119. The very hot gases expand with tremendous force, driving the ……….. down and turning the ………………..
A. Cylinder - piston
B. Crankshaft - piston
C. Piston - crankshaft
120. two-stroke engines have simple construction and low weight because they don’t have …….
A. crankcases
B. valves
C. pistons
121. As the piston approaches the bottom of its stroke, the ……….. is uncovered
A. Spark plug
B. Exhaust port
C. Intake port
122. The vacuum opens the reed valve and sucks air/fuel/oil in from ………..
A. carburetor
B. cylinder
C. combustion chamber
123. In a two-stroke engine, the sides of the piston are acting like …………. Covering and uncovering the intake
and exhaust ports
A. seals
B. valves
C. drills
124. In a two-stroke engine, the intake and exhaust ports are ….. into the sides of the cylinder wall
A. sealed
B. grooved
C. drilled
125. In a two-stroke, the oil is ……………… to lubricate the different parts
A. Held in the crankcase
B. Mixed with air and fuel into the cylinder
C. Put into the piston
126. In a four-stroke engine, each piston within the engine must make four strokes to complete one..
A. stroke
B. cycle
C. motion
127. The part of the wing where the airflow over the upper surface wing meets the airflow over the lower surface of
the wing is called the ………
A. Training edge;
B. Leading edge;
C. Trailing edge;
128. The landing gear is attached to shock-absorbing ………………to cushion the blow of landing :
A. struts;

8
 B. strats;
C. strots.
129. Thrust is provided by :
A. Speed ;
B. Resistance of the air;
C. Powerplant.
130. During the intake stroke, the intake valve is ---
A. partially open
B. closed
C. open
131. When the piston moves downward inside the cylinder, it produces ---
A. large amounts of heat
B. a partial vacuum
C. noise
132. At what point during the compression stroke does the intake valve close?
A. when the crankshaft rotates
B. when the piston reaches TDC
C. when the piston reaches BDC
133. During the compression stroke in gasoline engines, the air-fuel mixture is compressed to about one-eighth of
its originial volume. This is called the –
A. compression ratio
B. compression equation
C. compression percentage
134. Ignition takes place as the piston reaches ---
A. DOA
B. BDC
C. TDC
135. When does the exhaust valve open?
A. when the exhaust fumes reach a certain point
B. after the piston stops moving
C. just as the power stroke is finished
136. Engines transform heat energy to --
A. electricity
B. mechanicalenergy
C. kineticenergy
137. In an internal combustion engine, burning fuel within an enclosed cylinder results in the expansion of gases.
This expansion creates pressure that --
A. heats the boiler
B. spins the flywheel
C. moves the piston downward
138. Which aircraft fuel quantity indicating system incorporates a signal amplifier?
A. Electrical.
B. Sight glass.
C. Electronic.
139. A drip gauge may be used to measure
A. the amount of fuel in the tank.
B. system leakage with the system shut down.
C. fuel pump diaphragm leakage.

9
140. Why are jet fuels more susceptible to water contamination than aviation gasoline?
A. a. Jet fuel is lighter than gasoline; therefore, water is more easily suspended.
B. Condensation is greater because of the higher volatility of jet fuels.
C. Jet fuel has a higher viscosity than gasoline.
141. What is one purpose of a fuel tank vent?
A. To decrease tank internal air pressure.
B. To decrease fuel vapor pressure.
C. To maintain atmospheric pressure.
142. Pressure fueling of aircraft is usually accomplished through
A. at least one single point connection.
B. individual fuel tank overwing and/or fuselage access points.
C. pressure connections on individual fuel tanks.
143. Which of the following may be used for the repair of fuel leaks on most integral fuel tanks?
A. Riveting and resealing.
B. Brazing and resealing.
C. Welding and resealing.
144. What is used in many aircraft to prevent bubbles in the fuel after it leaves the tank when atmospheric pressure
is lower than fuel vapor pressure?
A. Air fuel separators.
B. Boost pumps.
C. Anti-foaming additives.
145. Which of the following precautions is most important during refueling operations?
A. Fuel to be used must be appropriately identified.
B. All electrical switches must be in OFF position.
C. All outside electrical sources must be disconnected from the aircraft.
146. Before fueling an aircraft by using the pressure fueling method, what important precaution should be
observed?
A. The truck pump pressure must be adjusted for minimum filter pressure.
B. The aircraft's electrical system must be on to indicate quantity gauge readings.
C. The truck pump pressure must be correct for that refueling system.

147. Normal fuel cross-feed system operation in multiengine aircraft

A. reduces contamination and/or fire hazards during fueling or defueling operations.
B. provides a means to maintain a balanced fuel load condition.
C. calls for jettisoning of fuel overboard to correct lateral instability.
148. Fuel system components must be bonded and grounded in order to
A. retard galvanic corrosion.
B. drain off static charges.
C. prevent stray currents.
149. Which procedure must be followed when defueling aircraft with sweptback wings?
A. Defuel all the tanks at one time.
B. Defuel the outboard wing tanks first.
C. Defuel the inboard wing tanks first.

10
 D.
150. Select the correct term
A. Combination wrench
B. Wire Stripping Pliers
C. Channel Locking Pliers

151. Select the correct term

A. Round Nose Pliers
B. Needle Nose Pliers
C. Snap Ring Pliers

152. Select the correct term

A. Lineman Pliers
B. Locking Pliers
C. Crimping Pliers

153. Select the correct term

A. Crimping Pliers
B. Cutting Pliers
C. Lineman Pliers

154. enables the tool to adjust to the size of the object being held
A. impact wrench
B. slip or adjustable joint
C. regular or slotted tips

155. It is a short-jawed cutter with a blade set at a slight angle on each jaw. It can be
used to cut wire, rivets, small screws, and cotter pins, besides being practically
indispensable in removing or installing safety wire.
A. Diagonal pliers
B. Duckbill pliers
C. Slip joint pliers
156. this tool is a ………………….……..
A- Combinationwrench
B- Socket wrench
C- Point box-end wrench
157. this tool is a ………………….……..
A- Wire stripper pliers
B- Crimpingpliers
C- Water pumppliers

158. this tool is a …………………. ……..

A- Standard screwdriver
B- Offset screwdriver
C- Philips screwdriver

11
159. this is a ………………….……..
A- Combination wrench
B- Socket Wrench
C- Round head wrench

160. this is a ………………….……..

A- Combination wrench
B- Crow foot wrench
C- Round head wrench

12
13