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Exam simulation Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Exam simulation ATPL Aircraft General Knowledge - Airframe, Systems, Powerplant 120 questions on 120 minutes

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1 - The range of movement of a control surface is limited by:
2 - Spark plug fouling is more likely to happen if:
3 - The measured output power components of a constant frequency AC system are:
4 - The wing of an aircraft in flight, powered by engines located under the wing, is subjected to a bending moment which causes its leading edge, from the wing root to the wing tip, to operate in:
5 - The principle of the SAFE LIFE design of an aircraft is based on the:
6 - Excessive priming of a piston engine should be avoided because: 1. it drains the carburettor float chamber. 2. the risk of engine fire. 3. the risk of flooding the engine. 4. it fouls the spark plugs. The combination that regroups all of the correct statements is:
7 - Fuel flow information for gas turbine engines is:
8 - The automatic ground spoiler extension system is normally activated during landing by:
9 - A pneumatic de-icing system should be operated:
10 - According EASA CS the worst effect of a HAZARDOUS FAILURE on the occupants of an aeroplane excluding flight crew could be:
11 - With engine fire alarm activated, the extinguisher discharge:
12 - Torsion in a wing can be caused by:
13 - The VHF direction finder uses the following wavelengths:
14 - In some aircraft, there is a protection device to avoid the landing gear being inadvertently retracted on the ground. It consists of:
15 - The accessory units driven by the accessory gearbox of a turbo-jet engine are the 1. tacho-generator N1 2. tacho-generator N2 3. thrust reverser pneumatic motors 4. AC generator and its Constant Speed Unit (CSD) 5. oil pumps 6. hydraulic pumps 7. high pressure fuel pumps. The combination regrouping all the correct statements is:
16 - The installation and use of on-board oxygen generators is such that 1 - the smoking ban is imperative when used 2 - in case of accidental drop of the 'continuous flow' passenger masks, no crew action is required 3 - no trace of grease must be found in the system assembly 4 - the system's filling adaptors must be greased with non-freezing or graphite grease The combination which regroups all of the correct statements is:
17 - To reduce the risk of tyre burst due to overheating, for example after heavy braking during a rejected take-off, aircraft wheels may be fitted with:
18 - The reason for using inverters in an electrical system is:
19 - Alternating current can be derived from direct current by:
20 - Cabin differential pressure means the pressure difference between:
21 - What will happen to the geometrical pitch angle of a 'constant speed propeller' if the manifold pressure is increased ?
22 - When a persistent over-excitation fault is detected on only one AC generator, the protection device opens the:
23 - Among the different types of aircraft structures, the shell structures efficiently transmit the 1. normal bending stresses 2. tangent bending stresses 3. torsional moment 4. shear stresses The combination regrouping all the correct statements is:
24 - A current limiter fuse in a DC generation system is used to:
25 - Rudder trim adjustment in an aeroplane with irreversible flight controls is:
26 - On what principle does a fuel flow meter work?
27 - A magnetic circuit-breaker is:
28 - Under EASA Air OPS Part-CAT (CAT.IDE.A.250), the minimum number of hand fire extinguishers required in the passenger compartment is determined by the aeroplane's:
29 - Which of the following parts is a typical semiconductor part?
30 - The octane rating of a fuel and compression ratio of a piston engine have which of the following relations?
31 - The advantages of grounding the negative pole of the aircraft structure are: 1) weight saving 2) easy fault detection 3) increase of short-circuit risk 4) reduction of short-circuit risk 5) circuits are not single-wired lines. The combination regrouping all the correct statements is:
32 - Power plant fire extinguishers are operated by:
33 - The principle of damage tolerance in structural design of an aircraft is based on the:
34 - In addition to energy storage, the accumulator of the hydraulic system is used:
35 - The expression "secondary flight control" applies to the: 1) trimmable stabilizer 2) rudder 3) speed brake 4) aileron. The combination that regroups all of the correct statements is:
36 - What are the three elements of the fuselage structure of a large transport aeroplane?
37 - The expression "secondary flight control" applies to the: 1) elevator 2) speed brake 3) lift-augmentation devices 4) roll spoilers. The combination that regroups all of the correct statements is:
38 - A scissor is a component found on landing gears. Its function is to:
39 - The purpose of the 'Pressure Relief Valve' in a high pressure oxygen system is to:
40 - The application of carburettor heat reduces
41 - Which statement is correct? 1) The freezing point for Jet A is at a lower temperature than that for Jet B. 2) The flash point for Jet A is at a higher temperature than that for Jet B.
42 - An engine pressure ratio (EPR) can be defined as the ratio of:
43 - An airplane whose maximum approved passenger seating configuration is 7 to 30 seats must be equipped with at least:
44 - Pneumatic mechanical ice protection systems are mainly used for:
45 - Shuttle valves will automatically:
46 - The primary purpose of the reverse current relay is to:
47 - In a fuel system, the oil to fuel heat exchanger allows:
48 - The function of the selector valve is to:
49 - Hydraulic fluids must have the following characteristics 1. thermal stability 2. low emulsifying characteristics 3. corrosion resistant 4. good resistance to combustion 5. high compressibility 6. high volatility 7. high viscosity. The combination regrouping all the correct statements is:
50 - When AC generators are operated in parallel, they must be of the same:
51 - The disadvantages of axial flow compressors compared to centrifugal flow compressors are 1 - expensive to manufacture 2 - limited airflow 3 - greater vulnerability to foreign object damage 4 - limited compression ratio The combination of correct answers is:
52 - An aeroplane whose maximum approved passenger seating configuration is 501 to 600 seats must be equipped with at least:
53 - The Ram Air Turbine (RAT) provides emergency hydraulic power for:
54 - The fuselage of an aircraft consists, among others, of stringers whose purpose is to:
55 - When the oxygen system of a large aeroplane is used,:
56 - The rating of electrical fuses is expressed in:
57 - The moving part in an AC generator is usually referred to as the:
58 - Given an aeroplane with irreversible primary flight controls, how is control maintained if one hydraulic system is lost due to a hydraulic leak?
59 - The purpose of the contact breaker is to:
60 - When a wing bends upwards, aileron flutter might occur if the aileron deflects:
61 - Cabin altitude means the:
62 - The function of a NOT logic gate within a circuit is to:
63 - In a cabin air conditioning system, equipped with a bootstrap, the mass air flow is routed via the:
64 - Significant torsion effects in a wing during flight can be caused by:
65 - By-pass turbine engines are mainly used in commercial aviation, because:
66 - Cockpit indications associated with a windscreen heating system usually comprise:
67 - If air is tapped from a gas turbine HP compressor, the effect on the engine pressure ratio (EPR) and the exhaust gas temperature (EGT) is that:
68 - The expression "primary flight control" applies to the: 1) stabilizer 2) rudder 3) speed brake 4) aileron. The combination that regroups all of the correct statements is:
69 - An aircraft with a pressurized cabin flies at FL310. Following a malfunction of the pressure controller, the outflow valve runs to the open position. Given: VZc: Cabin rate of climb indication Zc: Cabin pressure altitude DELTA P: Differential pressure. This will result in a:
70 - What is the load in the upper respectively lower girder of a spar of a cantilever wing during straight and level flight?
71 - The pitch angle of a constant-speed propeller
72 - Which of these statements about structural design are correct and incorrect? 1) In structural design, FAIL SAFE implies the structure will never fail. 2) In structural design, SAFE LIFE implies the structure will never fail during a declared time period or number of cycles.
73 - The function of the generator breaker is to close when the voltage of the:
74 - What is the purpose of inboard ailerons?
75 - When a persistent underexcitation fault is detected on an AC generator connected to the aircraft mains with another AC generator, the protection device opens:
76 - Why are flaps and slats fitted to aeroplanes?
77 - If one of the 12 cells of a lead-acid battery is dead, the battery:
78 - A 'Zener' diode is used for:
79 - In a commercial transport aircraft the landing gear operating system is usually:
80 - According EASA CS-25 the worst effect of a MINOR FAILURE on the occupants of an aeroplane excluding flight crew could be:
81 - Which of these statements about rudder limiting are correct or incorrect? 1) A rudder ratio changer system reduces the rudder deflection for a given rudder pedal deflection as the IAS increases. 2) A variable stop system limits both rudder and rudder pedal deflection as the IAS increases.
82 - The useful work area in an ideal Otto engine indicator diagram is enclosed by the following gas state change lines
83 - Which of these statements about a gust lock system are correct or incorrect? 1) A gust lock can be used in flight to reduce the effects of turbulence. 2) Reversible flight controls should have a gust lock.
84 - In a gas turbine engine lubrication system fitted with an oil to fuel heat exchanger the:
85 - If an engine fails to stop with the magneto switch in OFF position, the cause may be:
86 - According to EASA CS-25 failure-condition classifications, the worst effect of a MINOR failure condition on the flight crew may be:
87 - Engine bleed air used for air conditioning and pressurization in turbo-jet aeroplanes is usually taken from the:
88 - The function of the rudder limiter system is:
89 - A twin-spool engine with a bypass mass flow of 250 kg/s and a HP compressor mass flow of 250 kg/s has a bypass ratio of:
90 - On an aeroplane, spoilers are:
91 - For a fan jet engine, the by-pass ratio is the:
92 - The elevators of a conventional airplane are used to provide rotation about the:
93 - It may be determined that an aircraft is not properly bonded if:
94 - The principle of FAIL SAFE design of an aircraft is based on the:
95 - The type of hydraulic fluid which has the greatest resistance to cavitation is:
96 - Cabin pressure is controlled by:
97 - Smoke detector systems are installed in the
98 - The gas turbine illustrated is of the following type:
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99 - A flight control surface actuator is said to be "reversible" when:
100 - On a transport type aircraft the fuel tank system is vented through:
101 - The capacity of a battery is expressed in terms of:
102 - The pressure usually produced by the Boost Pumps (BP) of the fuel supply system of a large jet transport airplane is within the following range:
103 - The air in a piston engine turbo-supercharger centrifugal compressor:
104 - If the ground wire between the magnetos and the ignition switch becomes disconnected the most noticeable result will be that:
105 - Because of the input/output relationship of an AND gate, it is often referred to as the:
106 - Because of the input/output relationship of an OR gate, it is often referred to as the:
107 - When excessively leaning the mixture for a better fuel economy, but still on the rich side of the peak EGT, the following engine parameter(s) may exceed their normal operating ranges:
108 - Regarding a jet engine: 1) The maximum thrust remains constant as the pressure altitude decreases. 2) The specific fuel consumption remains constant as the pressure altitude decreases at constant TAS.
109 - When the pilot moves the mixture lever of a piston engine towards a lean position the:
110 - When air is compressed for pressurization purposes, the percentage oxygen content is:
111 - When an 'open circuit' occurs in an electrical supply system, the:
112 - The control of free turbine engines on turboprops, is accomplished by - a propeller control lever used to select: 1 - propeller RPM 2 - turbine temperature 3 - turbine RPM - a fuel control lever used to select: 4 - propeller RPM 5 - torque 6 - turbine temperature. The combination which regroups all of the correct statements is:
113 - When the wing skin is not able to carry loads, the structural elements of the wing, which carry the bending moment, are:
114 - The logic symbol shown represents (assuming positive logic):
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115 - According to EASA CS-25 failure-condition classifications, the worst effect of a MINOR failure condition on the aeroplane may be:
116 - Ice protection for propellers on many turboprop aeroplanes operates:
117 - On four-stroke piston engines, the theoretical valve and ignition settings are readjusted in order to increase the:
118 - In an aircraft equipped with a DC main power system, AC for instrument operation may be obtained from:
119 - Which of these statements about structural design principles are correct or incorrect? 1) The DAMAGE TOLERANCE principle assumes cracks in the structure will never occur. 2) The SAFE LIFE principle is based on the replacement of parts after a given number of cycles or flight hours.
120 - In a hydraulic braking system, an accumulator is pre-charged to 1200 psi. An electrically driven hydraulic pump is started and provides a system pressure of 3000 psi. The hydraulic pressure gauge which is connected to the gas section of the accumulator, reads:
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