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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 - In a compensated capacitance type quantity indicating system, the contents gauge of a half-full fuel tank indicates a fuel mass of 8.000 kg. If a temperature rise increased the volume of fuel by 5%, the indicated fuel weight would:
2 - An aeroplane equipped with fully powered flight controls (irreversible type):
3 - The principle of ON CONDITION maintenance is based on the:
4 - The power of a piston engine decreases during a climb with a constant power lever setting because of the decreasing:
5 - According to EASA CS the allowable average failure probability per flight hour for a MAJOR FAILURE should be on the order of:
6 - Batteries are rated in:
7 - Fire precautions to be observed before refuelling are:
8 - The reason for a double switch on the elevator trim is:
9 - The equipment of an oxygen supply installation must be kept absolutely free of oil or grease traces as:
10 - In a free turbine engine:
11 - One type of flap used on aircraft moves down and increases the wing area by moving aft when lowered. This flap is known as:
12 - For piston engines, mixture ratio is the ratio between the:
13 - Pressurised transport aeroplanes are generally equipped with:
14 - The purpose of the proximity of the emergency evacuation path marking system is to:
15 - The trim tab:
16 - Assuming the initiating cause is removed, which of these statements about resetting are correct or incorrect? 1) A fuse is not resettable 2) A circuit breaker is not resettable.
17 - The correct statement about rain protection for cockpit windshields is that:
18 - A semi-monocoque aircraft fuselage structure usually consists of:
19 - Load shedding means:
20 - For a turbine engine, the self-sustaining speed relates to the minimum RPM at which the engine:
21 - For a turbine engine, the term self-sustaining speed relates to the speed at which the engine:
22 - In case of engine failure during flight the blades of a constant speed propeller in a single engine aeroplane, not fitted with feathering system
23 - The term 'pressure cabin' applies when an aeroplane:
24 - If an abortive start (hung start) occurs when starting a gas turbine engine, the correct action is to:
25 - The advantages of a chemical oxygen source for the passenger cabin are 1. reduced weight and volume, 2. easy storage and maintenance, 3. greater autonomy, 4. no risk of explosion,5. reversible functioning, 6. no maintenance. The combination regrouping all the correct statements is:
26 - When a bimetallic strip is used as a switch in a fire detection loop, a fire alarm is triggered after a delay. The purpose of this delay is to:
27 - On many transport-category aeroplanes, if normal hydraulic landing-gear extension is lost, alternate extension is usually achieved:
28 - A pneumatic de-icing system should be operated:
29 - A fixed gas-turbine engine fire-extinguishing system typically uses:
30 - Regarding Ohm's law:
31 - The speed of an asynchronous four-pole motor fed at a frequency of 400 Hertz is:
32 - A flight control surface actuator is said to be "reversible" when:
33 - The principle of the SAFE LIFE design of an aircraft is based on the:
34 - On a large pressurised transport aeroplane, the maximum cabin differential pressure is approximately:
35 - On transport aeroplanes, cockpit windows are normally protected against icing by:
36 - The ventilation system in a fuel tank:
37 - At constant fuel flow, if engine compressor air is bled off for engine anti-icing or a similar system, the turbine temperature:
38 - In an aircraft equipped with a DC main power system, AC for instrument operation may be obtained from:
39 - For a free power turbine engine:
40 - Electrically powered ice protection devices on aircraft are:
41 - The viscosity of a hydraulic fluid should be:
42 - 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:
43 - The purpose of the barometric correction in a fuel controller is to:
44 - The advantages of alternating current on board an aircraft are: 1. simple connection 2. high starting torque 3. flexibility in use 4. lighter weight of equipment 5. easy to convert into direct current 6. easy maintenance of machines. The combination of correct statements is:
45 - Assuming cabin differential pressure has reached the required value in normal flight conditions, if flight altitude and air conditioning system setting are maintained:
46 - The hydraulic system that works correctly is shown in the figure:
question agk1.webp
47 - Because of the input/output relationship of an AND gate, it is often referred to as the:
48 - On the attached diagram showing the power output of a piston engine as a function of mixture richness, best economy is at the point marked:
question agk3.webp
49 - The advantage of mounting the tailplane on top of the vertical stabilizer (a "T-tail" configuration) is:
50 - Shuttle valves will automatically:
51 - In the axial flow compressor of a turbo-jet engine, the flow duct is tapered. Its shape is calculated so as to:
52 - A volumetric top off valve on small aircraft typically works on the principle of:
53 - During flight the yaw pedals are used to control:
54 - The passenger oxygen mask will supply:
55 - The function of the selector valve is to:
56 - An artificial feel unit is necessary in the pitch channel when:
57 - Reference should be made to the fuel supply system shown in annex. In flight, with centre tank empty and APU operating, a fuel unbalance is detected (quantity in tank 1 < quantity in tank 2). Rebalancing of the two tanks is:
question agk5.webp
58 - 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.
59 - When a part of a continuous loop fire detection system is heated 1. its resistance decreases. 2. its resistance increases. 3. the leakage current increases. 4. the leakage current decreases The combination regrouping all the correct statements is:
60 - A "trip-free" type circuit breaker is a circuit protection device which:
61 - On-board electrical systems are protected against faults of the following type: 1) AC generator over-voltage 2) AC generator under-voltage 3) over-current 4) over-speed 5) under-frequency 6) undue vibration of AC generators. The combination of correct statements is:
62 - An aircraft magneto is switched off by: 1. grounding the primary circuit. 2. opening the primary circuit. 3. opening the secondary circuit. 4. grounding the secondary circuit. The combination that regroups all of the correct statements is:
63 - Most transport aeroplanes are provided with protection against control jamming. This means that:
64 - Which of these statements about composite and metal structures are correct or incorrect? 1) In a structural component with given dimensions constructed of composite materials, the strength is the same in all directions. 2) Composite materials enable structures with higher strength / weight ratio than metal structures.
65 - If an artificial feel unit is fitted, it would be connected:
66 - The pressurization of tanks is maintained by the fuel:
67 - The wing ice protection system currently used for most large turboprop transport aeroplanes is a:
68 - A single action actuator:
69 - The bending loads on a cantilever wing due to lift are carried by the: 1. upper skin surface. 2. lower skin surface. 3. wing root fairing. 4. spar or spars. The combination that regroups all of the correct statements is:
70 - Max. Exhaust Gas Temperature is theoretically associated with:
71 - Turbine blade stages may be classed as either 'impulse' or 'reaction'. In an impulse blade section:
72 - A diluter demand oxygen regulator:
73 - The frequency which corresponds to a wavelength of 12 cm is:
74 - An aeroplane whose maximum approved passenger seating configuration is greater than 600 seats must be equipped with at least:
75 - An aircraft whose maximum approved configuration for passenger seats is 200 seats must be equipped with:
76 - In hydraulic systems of large transport-category aeroplanes, the fluid commonly used is:
77 - One of the advantages of a turbocharger is:
78 - Dual ignition provides a factor of reliability and:
79 - 'Vapour lock' is the phenomenon by which:
80 - Smoke detectors fitted on transport aircraft are of the following type:
81 - In flight, if the Constant Speed Drive (CSD) temperature indicator is in the red arc the:
82 - What are the three elements of the fuselage structure of a large transport aeroplane?
83 - Main cabin temperature is:
84 - A propeller blade is twisted, so as to
85 - Alternating current can be derived from direct current by:
86 - The purpose of the 'Pressure Relief Valve' in a high pressure oxygen system is to:
87 - The built-in passenger oxygen system be activated by:
88 - The 'slipstream effect' of a propeller is most prominent at:
89 - The difference between (1) a fuse and (2) a circuit breaker is:
90 - Using compressor bleed air to power systems:
91 - A 3 phase AC generator has 3 separate stator windings spaced at:
92 - The advantages of fly-by-wire control are: 1) Reduction of the electric and hydraulic power required to operate the control surfaces. 2) Lesser sensitivity to lightning strike. 3) Direct and indirect weight saving through simplification of systems. 4) Immunity to different interfering signals. 5) Improvement of piloting quality throughout the flight envelope. The combination regrouping all the correct statements is:
93 - Relationships between the force, pressure and area is:
94 - In a pressurized aircraft, the first aid (therapeutic) oxygen is designed to:
95 - A torsion link assembly is installed on the landing gear to:
96 - Pulling the fire shutoff handle causes a number of devices to disconnect. In respect of the AC generator it can be said that the:
97 - The purpose of a distributor in an ignition system is to distribute:
98 - In a constant-frequency AC generating system, field excitation of the main generator rotor is supplied directly by:
99 - The purpose of static wick dischargers is to:
100 - A current limiter fuse in a DC generation system is used to:
101 - 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) There is no need for a gust lock on reversible flight controls.
102 - The purpose of stringers, used in fuselage construction, is to:
103 - An oxygen regulator has 3 controls - a power lever: ON/OFF - an 'O2' lever: NORMAL/100% - an emergency lever: ON/OFF. Among the following statements, the correct proposition is:
104 - With respect to a piston engine aircraft, ice in the carburettor:
105 - According to EASA CS the worst effect of a HAZARDOUS FAILURE on the occupants of an aeroplane excluding flight crew could be:
106 - 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:
107 - On the ground, the Auxiliary Power Unit (APU) can be substituted for the:
108 - The fuel cross-feed system:
109 - With regard to pneumatic de-ice boots, the only correct statement is:
110 - The conditions which can cause knocking are:
111 - The reasons for disconnecting a constant speed drive (CSD) of an AC generator in flight are: 1 - low oil pressure in the CSD. 2 - slight variation about the normal operating frequency. 3 - high oil temperature in the CSD. 4 - excessive variation of voltage and kVAR. The combination that regroups all of the correct statements is:
112 - About a twin spool compressor:
113 - In jet aeroplanes the 'thermal anti-ice system' is primarily supplied by
114 - Vibration sensors are used in a gas turbine engine to indicate:
115 - An engine fire in a large transport aircraft is indicated by a:
116 - A primary stop is mounted on an elevator control system in order to:
117 - A turbocharger consists of a:
118 - According to EASA CS-25 failure-condition classifications, the worst effect of a MAJOR failure condition on the aeroplane may be:
119 - On an aeroplane utilising AC as primary power supplies, the batteries are charged in flight from:
120 - The capacitance type fuel gauging system indicates the fuel quantity by measuring the:
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