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

Exam simulation ATPL Question Bank in English Aircraft General Knowledge - Airframe, Systems, Powerplant 120 questions on 120 minutes

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1 - In the parallel AC distribution arrangement where each generator feeds its own AC bus through a generator breaker and each AC bus connects to the synchronizing bus through a bus-tie breaker, which breaker disconnects one AC bus from the synchronizing bus while leaving its generator connected to that AC bus?
2 - On detection of a persistent phase imbalance between an AC generator connected to the main bus bars and other AC generators, the protection device that opens is/are the:
3 - An EGT (Exhaust Gas Temperature) indicator for a piston engine is used to:
4 - Which of these statements regarding cockpit windows are correct or incorrect? I. On some aeroplanes the cockpit windows have an additional speed restriction, related to bird impact, when window heating is inoperative. II. Cockpit side windows are always provided with a de-icing system.
5 - Main cabin temperature is:
6 - Turbine blade stages may be classed as either 'impulse' or 'reaction'. In an impulse blade section:
7 - Which of these statements about a gust lock system are correct or incorrect? 1) Irreversible flight controls should have a gust lock. 2) Manual flight controls should have a gust lock.
8 - 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.
9 - Cabin pressure is controlled by:
10 - Ice protection for propellers on many turboprop aeroplanes operates:
11 - Which statements about an aircraft tubeless tyre are correct? 1 - It can be used on any wheel rim without an airtight seal. 2 - Its inflation valve is fitted to the wheel rather than to an inner tube. 3 - Its wheel bead-seat areas must be serviceable and provide the required airtight seal. 4 - Mounting tools cannot damage the wheel rim, so rim protection is unnecessary. 5 - It cannot burst or lose pressure after a puncture. 6 - It has no inner tube and therefore no rubbing between a tube and the tyre. Select all correct statements.
12 - Using compressor bleed air to power systems:
13 - Which precaution applies when using an installed chemical rain-repellent spray system on a cockpit windscreen?
14 - The maximum differential pressure of a transonic transport category aeroplane is approximately:
15 - The Distance Measuring Equipment (DME) uses the following wavelengths:
16 - One of the purposes of compressor bleed valves is to:
17 - In a conventional transport-aeroplane pneumatic wing anti-ice installation, hot air is ducted primarily to:
18 - 'Fail safe construction' is:
19 - The type of brake unit found on most transport aeroplanes is a:
20 - An artificial feel system:
21 - 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:
22 - The measured output power quantities of a constant frequency AC system are:
23 - For voltage build-up in a self-excited shunt DC generator, assume correct field polarity, suitable field-circuit resistance and a sufficiently light external load. Which of the following conditions are required? 1 - Residual magnetism in the field poles. 2 - A short-circuited external load. 3 - Short-circuited generator terminals. 4 - Rotation above the critical speed for the field-circuit resistance.
24 - According to EASA CS-25 the worst effect of a CATASTROPHIC FAILURE on the flight crew could be:
25 - The primary purpose of a supercharger is to:
26 - Engine compartment decking and firewalls are manufactured from:
27 - Significant torsion effects in a wing during flight can be caused by:
28 - Compressor surge during gas turbine engine acceleration is prevented by:
29 - A propeller blade is twisted, so as to
30 - 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:
31 - When AC generators are operated in parallel, they must be of the same:
32 - The purpose of the barometric correction in a fuel controller is to:
33 - What is the primary purpose of an adjustable trim tab on a primary flight-control surface?
34 - The voltage regulator of a DC generator is connected in:
35 - Before connecting an AC generator in parallel to an energised bus, with the same phase sequence already established, which other parameters must be matched within the applicable synchronising limits?
36 - The logic symbol shown represents (assuming positive logic):
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37 - The component that converts hydraulic pressure into linear motion is called:
38 - On transport aeroplanes, cockpit windows are normally protected against icing by:
39 - In a bootstrap air-cycle system with primary and secondary heat exchangers, what is their combined cooling function?
40 - The cabin rate of descent:
41 - In an electrical continuous-loop fire detector with a negative-temperature-coefficient thermistor core, monitored at a fixed voltage, heating part of the sensing element causes: 1 - Its resistance to decrease. 2 - Its resistance to increase. 3 - The sensing current to increase. 4 - The sensing current to decrease. Which combination is correct?
42 - In a piston engine if the ratio of air to fuel, by weight, is approximately 9:1, the mixture is said to be:
43 - A scissor is a component found on landing gears. Its function is to:
44 - The capacitance type fuel gauging system indicates the fuel quantity by measuring the:
45 - Most transport aeroplanes are provided with protection against control jamming. This means that:
46 - According to the manufacturer's technical data, what is the colour of fresh Skydrol LD-4 aviation hydraulic fluid?
47 - According to EASA CS-25 failure-condition classifications, the worst effect of a MAJOR failure condition on occupants excluding flight crew may be:
48 - 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:
49 - Vents in oil tanks are primarily to
50 - According to EASA CS the worst effect of a HAZARDOUS FAILURE on the occupants of an aeroplane excluding flight crew could be:
51 - The pneumatic ice protection system is mainly used for:
52 - A current limiter fuse in a DC generation system is used to:
53 - The conditions under which you obtain the highest engine power are:
54 - When applying carburettor heating:
55 - Which is the correct statement regarding a large aircraft fitted with both inboard and outboard ailerons?
56 - 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:
57 - Under normal running conditions a magneto draws primary current:
58 - Load shedding means:
59 - For take-off, the correct combination of propeller pitch (1), and propeller lever position (2) at brake release is:
60 - When the electrical test switch of the described continuous-loop fire-detection system is operated, what is checked?
61 - The reason for fitting thermal plugs to aircraft wheels is that they:
62 - Which of the following statements, relating to the application of Ohm's Law, is the most correct?
63 - Which controls act together in a V-tail aircraft?
64 - Which of these alloys is lighter than aluminium alloy and is also used for aircraft cast housings when weight reduction is a primary consideration?
65 - Which of these statements about a gust lock system are correct or incorrect? 1) There is no need for a gust lock on irreversible flight controls. 2) Manual flight controls should have a gust lock.
66 - A typical vented continuous-flow passenger oxygen mask delivers which breathing mixture to the wearer?
67 - Regarding fire detection, Ion detectors are used to detect:
68 - A CSD of an AC generator may be disconnected in flight. The primary reason(s) for disconnection are:
69 - In regard to passengers briefing in commercial air transport aeroplane, information about oxygen must be given to passengers through a demonstration. If a flight is to be carried out at FL 290, this demonstration must be completed before:
70 - 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:
71 - A servo tab moves:
72 - Under EASA Air OPS Part-CAT (CAT.IDE.A.240), in a non-pressurised aeroplane, supplemental oxygen for 100% of the passengers must be available for the entire flying time when the pressure altitude is above:
73 - Which radio-reception symptom may indicate inadequate electrical bonding on an aeroplane?
74 - At constant fuel flow, if engine compressor air is bled off for engine anti-icing or a similar system, the turbine temperature:
75 - Why are flaps and slats fitted to aeroplanes?
76 - What is a typical duration of passenger emergency oxygen supplied by a sodium-chlorate chemical oxygen generator for an emergency descent?
77 - Under the standard cabin-altitude warning requirement of CS-25.841(b)(6), with no approved alternative limitation, exceeding which cabin pressure altitude must warn the flight crew?
78 - A FAIL SAFE airframe construction design is:
79 - With respect to a piston engine aircraft, ice in the carburettor:
80 - Which of these statements about a gust lock system are correct or incorrect? 1) There should be suitable design precautions to prevent flight with the gust lock engaged. 2) There is no need for a gust lock on reversible flight controls.
81 - A pneumatic de-icing system should be operated:
82 - On a multi-engined aircraft a fire detection system includes:
83 - The compression ratio of a piston engine is the ratio of the:
84 - The correct formula to calculate the multi-cylinder engine displacement is:
85 - 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.
86 - In some aircraft, there is a protection device to avoid the landing gear being inadvertently retracted on the ground. It consists of:
87 - 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:
88 - The primary purpose of the bleed valves fitted to axial flow compressors is to:
89 - Which frequency band is conventionally used for long-range aeronautical voice communication by sky-wave refraction through the ionosphere?
90 - The wing ice protection system currently used for most large jet transport aeroplanes is a:
91 - The principle of FAIL SAFE design of an aircraft is based on the:
92 - On detection of a persistent overvoltage fault on an AC generator connected to the aircraft AC busbars (paralleled bus system), the on-board protection device opens:
93 - A chip detector in the oil system of an engine/gearbox is to indicate that
94 - A torsion link assembly is installed on the landing gear to:
95 - An aeroplane whose maximum approved passenger seating configuration is greater than 600 seats must be equipped with at least:
96 - For a free-power-turbine turboprop engine:
97 - In a conventional fixed engine-nacelle fire-extinguishing installation, where is the extinguishing agent distributed?
98 - A static converter is powered by:
99 - In a hydraulic system, the reservoir is pressurized in order to:
100 - In a conventional vented aircraft fuel tank, which system allows tank pressure to equalise with outside air pressure as fuel is used and temperature or altitude changes?
101 - On a large transport aeroplane, the auto-slat system:
102 - 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 decreases.
103 - To request and use ground-based VHF direction-finding assistance, which airborne radio equipment is needed?
104 - The reason for the trim switch on a control column to consist of two separate switches is
105 - Assuming the initiating cause is removed, which of these statements about resetting are correct or incorrect? I. A fuse is not resettable II. A circuit breaker is resettable.
106 - Generally, when the fire handle of the fire-extinguishing system on an aircraft is pulled, the effects are 1. closing of the LP valve of the fuel system 2. opening of the air bleed valves and HP valves on the engine concerned 3. setting of extinguishing systems 4. closing of the isolation and de-icing valves 5. isolation of the associated electric current generators 6. immediate discharge of extinguishing agent. The combination regrouping all the correct statements is:
107 - On four-stroke piston engines, the theoretical valve and ignition settings are readjusted in order to increase the:
108 - The capacity of a battery is the:
109 - The main purpose of a turbocharger is to:
110 - Under EU CAT.IDE.A.250, an aeroplane with a maximum operational passenger seating configuration (MOPSC) of 61 to 200 must have at least how many hand fire extinguishers conveniently located in the passenger compartment?
111 - A fuel valve whose moving element is actuated by the magnetic field of an energised electrical coil is called a:
112 - Which combination can indicate a sustained severe compressor surge with overheating?
113 - In a controlled comparison for a piston engine, MAP, RPM, actual fuel/air ratio, inlet temperature and inducted charge are unchanged. If only exhaust back pressure decreases, and all other effects are neglected, the resulting reduction in exhaust pumping losses causes brake power to:
114 - 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:
115 - Engine bleed air used for air conditioning and pressurization in turbo-jet aeroplanes is usually taken from the:
116 - Electrically powered ice protection devices on aircraft are:
117 - Pneumatic mechanical ice protection systems are mainly used for:
118 - The fuselage of an aircraft consists, among others, of stringers whose purpose is to:
119 - How should the viscosity of an approved hydraulic fluid be selected for an aircraft hydraulic system?
120 - In a free turbine engine:
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