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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 - According to EASA CS-25 failure-condition classifications, the worst effect of a MINOR failure condition on the aeroplane may be:
2 - To request and use ground-based VHF direction-finding assistance, which airborne radio equipment is needed?
3 - The function of a NOT logic gate within a circuit is to:
4 - A test to assess the state of charge of a lead-acid battery would involve:
5 - The type of windings commonly used in DC starter motors are:
6 - Regarding Ohm's law:
7 - In a conventional thermal-switch fire-warning circuit, how does a heat-sensitive detector initiate a fire or overheat warning?
8 - The charge capacity of an aircraft battery, at a specified discharge rate and cut-off voltage, is expressed in:
9 - Spark plug fouling is more likely to happen if:
10 - 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:
11 - The relationship between compression ratio of a piston engine and the required fuel octane rating is that the:
12 - The wavelength of a radio wave transmitted on frequency 121.95 MHz is:
13 - For a transport aeroplane with an APU approved to provide electrical power and pneumatic air on the ground, which is the most complete list of external ground services that it can replace?
14 - 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.
15 - What is the name of the control surface that rotates an aeroplane about its vertical axis?
16 - 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
17 - A diluter demand oxygen regulator:
18 - Which statement most accurately describes the factors affecting piston-engine oil consumption?
19 - When air is compressed for pressurization purposes, the percentage oxygen content is:
20 - In jet aeroplanes the 'thermal anti-ice system' is primarily supplied by
21 - The Auxiliary Power Unit (APU) has its own AC generator that:
22 - Primary flight controls are:
23 - 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:
24 - The elevators of a conventional aeroplane are used to provide rotation about the:
25 - The principle of damage tolerance in structural design of an aircraft is based on the:
26 - Which fire precaution applies before opening an over-the-wing fuel filler cap for refuelling?
27 - In a fire detection system with single-loop continuous components (with no fault protection), if the line is accidentally grounded:
28 - Which of these statements about structural design principles are correct or incorrect? 1) The DAMAGE TOLERANCE principle takes cracking of the structure into account. 2) The SAFE LIFE principle is based on the replacement of parts after a given number of cycles or flight hours.
29 - The moving part in an AC generator is usually referred to as the:
30 - For the mixture entering an engine cylinder, the fuel/air ratio (F/A) is the ratio of:
31 - In a pressurized aircraft, the first aid (therapeutic) oxygen is designed to:
32 - During level flight at a constant cabin pressure altitude (which could be decreased, even at this flight level), the cabin outflow valves are:
33 - The Low Altitude Radio Altimeter uses the following wavelengths:
34 - A torsion link assembly is installed on the landing gear to:
35 - Aircraft is descending in straight flight with the spoilers deployed. If a pilot initiates a descending turn to the left the:
36 - In a pressurized transport aircraft, the protective breathing equipment:
37 - The ignition system generally used for small aircrafts is a:
38 - A 'Zener' diode is used for:
39 - Most transport aeroplanes are provided with protection against control jamming. This means that:
40 - 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:
41 - Windshield heating of a transport aeroplane is:
42 - In a conventional transport-aeroplane pneumatic wing anti-ice installation, hot air is ducted primarily to:
43 - A 'fan' stage of a ducted-fan turbine engine is driven by:
44 - The pilot may be prevented from retracting the landing gear whilst the aircraft is on the ground by:
45 - 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:
46 - About a twin spool compressor:
47 - Which statements describe conventional serviceable nickel-cadmium aircraft batteries under their specified operating and storage conditions? 1 - They have no significant thermal-runaway risk. 2 - High internal resistance is the reason for high starting-current capability. 3 - They offer good high-rate charge and discharge capability. 4 - They can operate over their specified temperature range, although available capacity depends on temperature. 5 - They can be stored under the manufacturer-prescribed storage conditions. 6 - Their metallic aircraft battery case provides mechanical protection. 7 - Electrolyte density does not change appreciably with normal state of charge and therefore cannot be used to determine charge state. Select the option containing all correct statements.
48 - 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:
49 - Which controls act together in a V-tail aircraft?
50 - 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.
51 - 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:
52 - A fixed gas-turbine engine fire-extinguishing system typically uses:
53 - Turbine blade stages may be classed as either "impulse" or "reaction". In an impulse blade section the pressure (i)... across the nozzle guide vanes and (ii)... across the rotor blades:
54 - What can be the consequence during a descent with a fully open throttle if the waste gate is seized?
55 - For a subsonic airflow, in a divergent duct the:
56 - The automatic fuelling shut off valve:
57 - The torque of an aeroplane engine can be measured at the:
58 - For a free-power-turbine turboprop engine:
59 - The difference between (1) a fuse and (2) a circuit breaker is:
60 - A magnetic circuit-breaker is:
61 - The type of brake unit found on most transport aeroplanes is a:
62 - The principle of aeroplane propulsion is to generate a propelling force by:
63 - The manual inflation handle fitted to an evacuation-slide assembly:
64 - The de-icing system which is mostly used for the wings of modern turboprop aeroplanes is:
65 - In a vapour cycle cooling system what is the purpose of the condenser?
66 - In a steep turn to the left, when using flight spoilers for roll assistance and at the same time for reducing the airspeed:
67 - When quick donning masks are in use, the pilot is:
68 - A bus-bar is:
69 - A rectifier is a unit that:
70 - One of the purposes of compressor bleed valves is to:
71 - Which combination can indicate a sustained severe compressor surge with overheating?
72 - When a persistent over-excitation fault is detected on only one AC generator, the protection device opens the:
73 - In a conventional DC generating system, the voltage-operated generator cut-out relay normally connects the generator when its voltage exceeds battery/bus voltage and disconnects it as reverse current develops. Which comparison describes this operation?
74 - In a bootstrap air-cycle system, after the supply air has been pre-cooled in the primary heat exchanger, what is its sequence through the air-cycle machine and secondary heat exchanger?
75 - The current in a DC circuit, according to Ohm's law, can be described as:
76 - In a gas turbine engine lubrication system fitted with an oil to fuel heat exchanger the:
77 - On transport aeroplanes, cockpit windows are normally protected against icing by:
78 - 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:
79 - Which static unit commonly converts an aeroplane constant-frequency AC supply to a lower-voltage DC supply using a transformer and rectifier diodes?
80 - 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.
81 - A pressure relief valve that does not fit on its seat properly would result in
82 - The current rating of an electrical fuse is expressed in:
83 - For the appropriate oxygen and protective-breathing equipment carried on a pressurised aeroplane, which uses are recognised? 1 - Supplemental oxygen after depressurisation. 2 - First-aid oxygen for passengers who require it under the applicable conditions. 3 - Supplying the normal cabin ventilation air directly from oxygen cylinders. 4 - Flight-crew respiratory protection with suitable oxygen masks or protective-breathing equipment during smoke or fumes. Select the combination containing all correct uses.
84 - The fuselage of an aircraft consists, among others, of stringers whose purpose is to:
85 - Using compressor bleed air to power systems:
86 - The use of a hot air wing anti-icing system:
87 - The conditions which can cause knocking are:
88 - 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:
89 - Because of the input/output relationship of an OR gate, it is often referred to as the:
90 - In a conventional dry-sump piston-engine installation using a scavenge-line oil cooler, the cooler is fitted:
91 - Under CS-25.841, what is the maximum cabin pressure altitude permitted in normal operating conditions at the aeroplane's maximum operating altitude?
92 - 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.
93 - The equipment of an oxygen supply installation must be kept absolutely free of oil or grease traces as:
94 - Creep of turbine blades is caused by:
95 - During climb with constant throttle and RPM lever setting (mixture being constant) the:
96 - The very rapid magnetic field changes (flux) around the primary coil in a magneto are accomplished by the:
97 - On an aircraft landing gear, an under-inflated tyre:
98 - Because of the input/output relationship of an AND gate, it is often referred to as the:
99 - An artificial feel unit is necessary in the pitch channel when:
100 - A fuel valve whose moving element is actuated by the magnetic field of an energised electrical coil is called a:
101 - On a multi-engined aircraft a fire detection system includes:
102 - The so-called 'hot buses' or 'direct buses' are:
103 - Which function of a hydraulic accumulator directly reduces pressure surges caused by unit actuation and pump response?
104 - On a Boeing 737 Classic with hydraulic power available to the conventional rudder control system, what happens when rudder trim is applied on the ground?
105 - Hydraulic fluids commonly used in large transport-category aeroplanes are:
106 - When a battery is almost fully discharged there is a tendency for the:
107 - A conventional engine-driven magneto ignition system on a piston engine is:
108 - On a transport type aircraft the fuel tank system is vented through:
109 - 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:
110 - What is the load in the upper respectively lower girder of a spar of a cantilever wing during straight and level flight?
111 - The crash/fire axe is part of the safety equipment fitted to passenger aircraft. Its function is to
112 - For a given type of oil, the oil viscosity depends on the:
113 - On large aeroplanes equipped with power brakes, the main source of power is derived from:
114 - 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.
115 - A servo tab moves:
116 - In the air-conditioning system of many transport-category aeroplanes, the reduction of air temperature and pressure is achieved by:
117 - On most transport jet aircraft, the low pressure pumps of the fuel system are supplied with electric power of the following type:
118 - Which condition defines a gas-turbine engine hung start?
119 - A fibre-reinforced polymer composite laminate principally consists of:
120 - In the event of a persistent top excitation limit fault on an AC generator connected to the mains with another AC generator, the overexcitation protection device opens:
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