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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 - Vibration sensors are used in a gas turbine engine to indicate:
2 - The diffuser in a centrifugal compressor is a device in which the:
3 - Automatic temperature control of the system as shown, would be accomplished by:
4 - The so-called 'hot buses' or 'direct buses' are:
5 - When air is compressed for pressurization purposes, the percentage oxygen content is:
6 - According JAR CS / EASA CS the worst effect of a MINOR FAILURE on the aeroplane could be:
7 - If the control stick of an aircraft with properly rigged flight controls is moved rearward and to the left, the right aileron will move:
8 - The capacitance type fuel gauging system indicates the fuel quantity by measuring the:
9 - An aeroplane whose maximum approved passenger seating configuration is 201 to 300 seats must be equipped with at least:
10 - Electrically powered ice protection devices on aircraft are:
11 - Evacuation slide inflation is ensured by:
12 - When a battery is almost fully discharged there is a tendency for the:
13 - The chemical oxygen generator is a system 1. which is inexpensive 2. requiring no external input 3. which is lightweight 4. requiring no maintenance 5. with adjustable flow rate 6. which is unsaf The combination regrouping all the correct statements is:
14 - An aircraft whose maximum approved configuration for passenger seats is 200 seats must be equipped with:
15 - The use of igniters is necessary on a turbo-jet: 1 - throughout the operating range of the engine 2 - for ground starts 3 - for accelerations 4 - for in-flight relights 5 - during turbulence in flight 6 - in heavy precipitation or in icing conditions The combination which regroups all of the correct statements is:
16 - On an aircraft landing gear, an under-inflated tyre:
17 - The purpose of the proximity of the emergency evacuation path marking system is to:
18 - If the pressure in the cabin tends to become lower than the outside ambient air pressure the:
19 - The bimetal strip detectors of an engine fire detection system: 1 - are arranged in series.2 - are arranged in parallel. 3 - open during a fire.4 - close during a fire.The combination containing all of the correct statements is:
20 - The replenishment of an onboard oxygen bottle must be done:
21 - The automatic fuelling shut off valve:
22 - The purpose of the primary stops in a flying control system is to:
23 - 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 generatorsThe combination of correct statements is:
24 - Prolonged running at low rpm can have an adverse effect on the functioning of the:
25 - In a steep turn to the left, when using flight spoilers for roll assistance and at the same time for reducing the airspeed:
26 - Because of the input/output relationship of an OR gate, it is often referred to as the:
27 - A static inverter is powered by:
28 - If the cabin altitude rises (aircraft in level flight), the differential pressure:
29 - Control surface flutter can be avoided by:1. a high torsional stiffness of the structure.2. a low torsional stiffness of the structure.3. locating a balancing mass in front of the control hinge.4. locating a balancing mass behind the control hinge.The combination that regroups all of the correct statements is:
30 - Circuit breakers protecting circuits may be:
31 - An artificial feel unit is necessary in the pitch channel of a flight control system when:
32 - 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:
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33 - 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:
34 - A SANDWICH structural part:
35 - An aircraft with a pressurized cabin is settled at its cruise level.During the flight, a malfunction of the pressure controller is detected by the crew and the cabin altitude rate indicator reads -200ft/min.Given that:DELTA P: Differential pressure Zc: Cabin altitude
36 - The part of a piston engine that transforms reciprocating movement into rotary motion is termed the:
37 - 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:
38 - The illumination of the green landing gear light indicates that the landing gear is:
39 - The power required for field excitation of the main rotor in modern constant-frequency alternators is directly supplied by:
40 - The gas turbine illustrated is of the following type:
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41 - Electrical bonding of an aircraft is used to 1. protect the aircraft against lightning effects. 2. reset the electrostatic potential of the aircraft to a value approximating 0 volt 3. reduce radio interference on radio communication systems 4. set the aircraft to a single potentia The combination regrouping all the correct statements is:
42 - When AC generators are operated in parallel, they must be of the same:
43 - A SANDWICH structural part is:
44 - 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.
45 - The conditions which can cause knocking are:
46 - The safety precautions to be taken whenever using oxygen are 1. refrain from smoking, avoid sparks. 2. Avoid operation of radio communication equipment. 3. Operate oxygen system valves slowly. 4 . Avoid greasy matter The combination regrouping all the correct statements is:
47 - It may be determined that an aircraft is not properly bonded if:
48 - Batteries are rated in:
49 - When a persistent underexcitation fault is detected on an AC generator connected to the aircraft mains with another AC generator, the protection device opens:
50 - The correct order of decreasing freezing points of the three mentioned fuels is:
51 - A current limiter fuse in a DC generation system is used to:
52 - Fire precautions to be observed before refuelling are:
53 - A reverse thrust door warning light on the flight deck instrument panel illuminates when:
54 - When changing power on engines equipped with constant-speed propeller, engine overload is avoided by:
55 - The advantages of fly-by-wire control are: 1. reduction of the electric and hydraulic power required to operate the control surfaces2. lesser sensitivity to lightning strike3. direct and indirect weight saving through simplification of systems4. immunity to different interfering signals5. improvement of piloting quality throughout the flight envelop The combination regrouping all the correct statements is:
56 - What is the purpose of inboard ailerons?
57 - Usually, in conductive materials:
58 - A pressurized aeroplane is operated at FL 300. It undergoes a rapid decompression so that the pressure in the cabin goes quickly down to the outside pressure value. What happens concerning the oxygen system?
59 - On an aircraft provided with resistance and capacitance variation type fire detection loops, a fire alarm is initiated by a temperature increase detected:
60 - The use of igniters is necessary on a turbo-jet 1 - throughout the operating range of the engine 2 - for ground starts 3 - for accelerations 4 - for in-flight relights 5 - during turbulence in flight 6 - in heavy precipitation or in icing condition The combination which regroups all of the correct statements is:
61 - The advantages of thermal anti-icing are:1. Simple and reliable system2. Profiles maintained3. Greater efficiency than that of an electrical resistor4. Direct use of the hot air from the jet engine without substantial reduction in engine thrust The combination of correct statements is:
62 - The resistors R1 and R2 are connected in parallel. The value of the equivalent resistance (Req) so obtained is given by the following formula:
63 - Some aircraft use a fly-by-wire system to move the primary flight controls. This system is based on:
64 - A rich mixture setting has to be used during climb segments. This results in a:
65 - In a hydraulic system, the reservoir is pressurized in order to:
66 - When the pilot moves the mixture lever of a piston engine towards a lean position the:
67 - In computer technology, a storage peripheral is a:
68 - The measured output power components of a constant frequency AC system are:
69 - The wing ice protection system currently used for most large turboprop transport aeroplanes is a(n):
70 - What will happen to the geometrical pitch angle of a 'constant speed propeller' if the manifold pressure is increased ?
71 - In a gas turbine engine, the maximum gas temperature is attained:
72 - In the cockpit of a transport airplane, at least one manual fire-extinguisher must be conveniently located containing:
73 - If one of the 12 cells of a Lead-acid battery has a broken connection rendering it inoperable, the battery:
74 - When operating two AC generators unparalleled, the phase relationship of each generator:
75 - In a fuel system, the oil to fuel heat exchanger allows:
76 - The conditions under which you obtain the highest engine power are:
77 - For a free power turbine engine:
78 - The purpose of the cabin pressure controller, in the automatic mode, is to perform the following functions 1. control of cabin altitude, 2. control of cabin altitude rate-of-change, 3. limitation of differential pressure 4. balancing aircraft altitude with cabin altitude 5. cabin ventilation 6. keeping a constant differential pressure throughout all the flight phases The combination regrouping all the correct statements is:
79 - The type of windings commonly used in DC starter motors are:
80 - The elevators of a conventional airplane are used to provide rotation about the:
81 - On modern transport aircraft, cockpit windows are protected against icing by:
82 - The voltage of a fully charged lead-acid battery cell is:
83 - The mixture control for a carburettor achieves its control by:
84 - The expression "secondary flight control" applies to the: 1) trimmable stabilizer 2) rudder 3) speed brake 4) aileronThe combination that regroups all of the correct statements is:
85 - 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:
86 - In flight, if the Constant Speed Drive (CSD) temperature indicator is in the red arc the:
87 - The purpose of bonding the metallic parts of an aircraft is to:1 - prevent electrolytic corrosion between mating surfaces of similar metals. 2 - ensure zero voltage difference between aircraft components.3 - isolate all components electrically.4 - provide a single earth for electrical devices.The combination that regroups all of the correct statements is:
88 - In a hydraulic system the master cylinder's inner area is 10 mm2, and the actuator cylinder's inner area is 100 mm2. If you press the master cylinder by 2 cm using a 100 N force, the actuator cylinder will move:
89 - The reason for the trim switch on a control column to consist of two separate switches is
90 - Compared to a tyre fitted with an inner tube, a tubeless tyre presents the following characteristics 1 - high heating 2 - valve fragility3 - lower risk of bursting4 - better adjustment to wheel The combination containing all the correct statements is:
91 - The purpose of a trim tab (device) is to:
92 - Primary flight controls are:
93 - When a continuous loop wire type fire detection system is tested:
94 - The FADEC of a gas turbine engine consists of:
95 - Fuel pumps submerged in the fuel tanks of a multi-engine aircraft are:
96 - Electrical bonding of an aircraft is used to 1. protect the aircraft against lightning effects. 2. reset the electrostatic potential of the aircraft to a value approximating 0 volt 3. reduce radio interference on radio communication systems 4. set the aircraft to a single potentia The combination regrouping all the correct statements is:
97 - The thrust of a turbo-jet, at the selection of full power 1 - equals the product of the exhaust gas mass flow and the exhaust gas velocity 2 - is obtained by pressure of the exhaust gas on the ambient air 3 - is equivalent to zero mechanical power since the aeroplane is not moving 4 - is independent of the outside air temperatur The combination which regroups all of the correct statements is:
98 - A magnetic circuit-breaker is:
99 - Why is the artificial feel required on some flight control systems and how is the degree of the feel set?
100 - Large transport aeroplane hydraulic systems usually operate with a system pressure of approximately:
101 - Landing gear torque links are used to:
102 - The purpose of the baffles in an aircraft's integral fuel tank is to:
103 - According EASA CS the worst effect of a HAZARDOUS FAILURE on the occupants of an aeroplane excluding flight crew could be:
104 - The primary reason for a limitation being imposed on the temperature of gas flow is to:
105 - 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.
106 - When a turbo-prop aeroplane decelerates during the intial part of the landing roll, a constant speed propeller within the beta range:
107 - Concerning electrically powered ice protection devices, the only true statement is:
108 - The function of a constant speed drive (CSD) in an AC generating system is to:
109 - The fuel-oil heat exchanger:
110 - Pneumatic mechanical ice protection systems are mainly used for:
111 - After air has passed through the compressor of a gas turbine engine the:
112 - The kind of compressor normally used as a supercharger is:
113 - The function of the selector valve is to:
114 - Relationships between the force, pressure and area is:
115 - During level flight at a constant cabin pressure altitude (which could be decreased, even at this flight level), the cabin outflow valves are:
116 - 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:
117 - In order to produce an alternating voltage of 400 Hz, the number of pair of poles required in an AC generator running at 6000 rpm is:
118 - The principle of aeroplane propulsion is to generate a propelling force by:
119 - In the axial flow compressor of a turbo-jet engine, the flow duct is tapered. Its shape is calculated so as to:
120 - If one of the 12 cells of a lead-acid battery is dead, the battery:
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