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Exam simulation Aircraft General Knowledge - Instrumentation ATPL - Airline Transport Pilot license

Exam simulation ATPL Aircraft General Knowledge - Instrumentation 120 questions on 120 minutes

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1 - A "Bourdon tube" is used in:
2 - Given:- Ts the static temperature (SAT)- Tt the total temperature (TAT)- Kr the recovery coefficient- M the Mach numberThe total temperature can be expressed approximately by the formula:
3 - The most common sensors interfacing a FMS to compute the aircraft position along the flight plan are:1- MLS2- GPS3- VOR4- IRSThe combination which regroups all of the correct statements is:
4 - Considering a stabilised platform inertial system: 1) The rate gyros and the accelerometers are mounted on the same platform. 2) The rate gyros and the accelerometers are mounted on two separated platforms. 3) The principle of operation requires at least 2 rate gyros. 4) The principle of operation requires at least 2 accelerometers.The combination that regroups all of the correct statements is:
5 - A directional gyro consists of a: NB: the degree(s) of freedom of a gyro does not take into account its rotor spin axis.
6 - TCAS 2 (Traffic Collision Avoidance System) uses for its operation:
7 - The heading read on the dial of a directional gyro is subject to errors, one of which is due to the movement of the aircraft.This error...
8 - In the building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass:
9 - Some of the FMS have a navigation mode called Dead Reckoning mode (DR), computing airspeed, heading, wind data ground speed and time. This mode is:
10 - The data supplied by a radio altimeter:
11 - An autopilot system:
12 - Modern low altitude radio altimeters emit waves in the following frequency band:
13 - True Air Speed (TAS) is equal to Equivalent Air Speed (EAS) only if:
14 - Concerning the TCAS (Traffic Collision Avoidance System):
15 - An airspeed indicator displays:
16 - When being engaged, and without selecting a particular mode, an automatic pilot enables:
17 - When, in flight, the needle of a needle-and-ball indicator is on the left and the ball on the right, the aircraft is:
18 - An air data computer1. supplies the ground speed and the drift (angle)2. determines the total temperature and the true altitude3. receives the static pressure and the total pressure4. supplies the true airspeed to the inertial unit5. determines the Mach number, the outside (static) air temperature The combination regrouping all the correct statements is:
19 - Among the systematic errors of the 'directional gyro', the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45°N, this reference turns by...
20 - The principle of capacity gauges is based on the:
21 - The measurement of the turbine temperature or of the EGT is carried out at the:
22 - At a low bank angle, the measurement of rate-of-turn actually consists in measuring the:
23 - When flying in cold air (colder than standard atmosphere), indicated altitude is:
24 - The properties of a gyroscope are: 1 - rigidity in space2 - rigidity on earth 3 - precession4 - Schuler oscillationsThe combination regrouping all the correct statements is:
25 - The command bars of a flight director:
26 - At 50 feet AGL during an auto-land, what happens to the glideslope signal?
27 - The QNH is by definition the value of the:
28 - VNO is the maximum speed:
29 - An airplane is in steady cruise at flight level 290. The auto-throttle maintains a constant Mach number. If the total temperature increases, the calibrated airspeed:
30 - An aneroid capsule:1 - measures differential pressure 2 - measures absolute pressure3 - is used for low pressure measurement4 - is used for very high pressure measurementThe combination regrouping all the correct statements is:
31 - The pressure altitude is the altitude corresponding:
32 - Hard iron magnetism in aircraft may be caused by:
33 - The block diagram of an auto-pilot is shown in the annex.For each control channel (pitch, roll and yaw) the piloting law is the relationship between the deflection of the control surface commanded by the computer (BETA c) and the:
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34 - Due to the rotation of the Earth, the apparent drift of a horizontal free gyroscope at a latitude of 45°N is:
35 - The limits of the green scale of an airspeed indicator are:
36 - If an aircraft is flying (with flaps and landing gear retracted) in proximity to terrain and its GPWS (Ground Proximity Warning System) get activated, because it is detecting that the aeroplane has an excessive rate of descent, the system provides the following aural warning signals:
37 - The pendulum type detector system of the directional gyro feeds:
38 - The operating principle of the vertical speed indicator (VSI) is based on the measurement of the rate of change of:
39 - The mach number is the:
40 - The signal transmitted by a radio altimeter is:
41 - Electrical requirements for an alumel / chromel indicating system are
42 - Given:Pt = total pressure Ps = static pressurePd = dynamic pressure
43 - On the display of a TCAS II (Traffic alert and Collision Avoidance System), a proximate traffic is represented by:
44 - During the approach, a crew reads on the radio altimeter the value of 650 ft. This is an indication of the true:
45 - Lights indicating the possible need for future corrective action must be:
46 - In case of accidental closing of an aircraft's left static pressure port (rain, birds), the altimeter:
47 - On the display of a TCAS 2 (Traffic alert and Collision Avoidance System), a resolution advisory (RA) is represented by:
48 - An aeroplane is in steady cruise at flight level 270. The auto-throttle maintains a constant calibrated airspeed. If the static air temperature decreases, the Mach number:
49 - The error in altimeter readings caused by the variation of the static pressure near the source is known as:
50 - Magnetic compass errors are:
51 - The TCAS II has inputs from the radio altimeter in order to:
52 - On a modern aircraft, the flight director modes are displayed on the:
53 - A flight control system which can, in the event of a failure, complete automatically the approach, flare and landing is called fail ...
54 - A pilot wishes to turn right through 90° on to North at rate 2 at latitude of 40 North using a direct reading compass. In order to achieve this the turn should be stopped on an indicated heading of approximately:
55 - The spin axis of the turn indicator gyro is aligned along the:
56 - The altimeter consists of one or several aneroid capsules located in a sealed casing. The pressures in the aneroid capsule (i) and casing (ii) are respectively:
57 - The Decision Height (DH) warning light comes on when an aircraft:
58 - The Ground Proximity Warning System (GPWS) generates the following sound signal or signals when the aircraft is sinking after a take-off or a go-around:
59 - During the approach, the radio altimeter indicates 950 ft. This is:
60 - The velocity of sound at the sea level in a standard atmosphere is:
61 - A TCAS 2 (Traffic Collision Avoidance System) provides:
62 - The radio altimeter is required to indicate zero height AGL as the main wheels touch down on the runway. For this reason, it is necessary to:
63 - In a turn at a constant angle of bank, the turn indicator reading is:
64 - The diagram which shows a 40° left bank and 15° nose down attitude is n°
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65 - A laser gyro can measure:
66 - When an aircraft has turned 90 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon:
67 - Given:Pt = total pressure Ps = static pressure Dynamic pressure is:
68 - Maintaining CAS and flight level constant, a fall in ambient temperature results in:
69 - If the GPWS (Ground Proximity Warning System) activates, and alerts the pilot with an aural warning 'DON'T SINK' (twice), it is because:
70 - Given:Zp = pressure altitude Zd = density altitudeTAS can be obtained from the following data:
71 - The principle of the TCAS (Traffic Collision Avoidance Systems) is based on the use of:
72 - The aircraft radio equipment which emits on a frequency of 4400 MHz is the:
73 - The altimeter of your aircraft indicates 11000 ft with a subscale-setting of 1013,25 mb. QNH is 1023 hPa. OAT is +3°C. The pressure altitude of the aircraft is:
74 - CAS is obtained from IAS by correcting for the:
75 - The purpose of the vibrating device of an altimeter is to:
76 - If the static source of an altimeter becomes blocked during a descent the instrument will:
77 - The sequence of the automatic landing comprises several phases (from final approach to touch-down) actuated by:
78 - Except for airplanes under 5,7 t airworthiness certificate of which is subsequent to 31 march 1998, a flight data recording system must be able to store the recorded data for a minimum of the last:
79 - For an aircraft flying a true track of 360° between the 5°S and 5°N parallels, the precession error of the directional gyro due to apparent drift is equal to:
80 - A pilot engages the control wheel steering (CWS) of a conventional autopilot and carries out a manoeuvre in roll. When the control wheel is released, the autopilot will:
81 - The deviation of the magnetic compass is due to the action of:
82 - The elements which take part in the local vertical alignment of an inertial strap-down unit are:
83 - The 'Bourdon tube' is used to measure:
84 - A pilot wishes to turn right on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of:
85 - The operation of the GPWS (Ground Proximity Warning System) is governed by laws taking the aircraft height into account as well as:1- the descent rate 2- the climb rate3- the aircraft configuration 4- the selected engine rpmThe combination regrouping all the correct statements is:
86 - The upper antenna of the TCAS II is:
87 - A thermocouple type thermometer consists of:
88 - A Stand-by-horizon or emergency attitude indicator:
89 - VNE is the maximum speed:
90 - In order to know in which mode the auto-throttles are engaged, the crew will check the:
91 - Below the tropopause, when descending at constant CAS:
92 - The diagram representing a left turn with insufficient rudder is:
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93 - The range of a low altitude radio altimeter is:
94 - On a TCAS 2 (Traffic Collision Avoidance System) the preventive 'resolution advisory' (RA) is a 'resolution advisory':
95 - The vertical command bar of a flight director:
96 - Due to its conception, the altimeter measures a:
97 - The magnetic heading can be derived from the true heading by means of a:
98 - A "close traffic advisory" is displayed on the display device of the TCAS II (Traffic Collision Avoidance System) by:
99 - When, in flight, the needle of a needle-and-ball indicator is on the right and the ball on the left, the aircraft is:
100 - In order to align an inertial reference system (IRS), it is required to insert the local geographical coordinates. This enables the IRS to:
101 - If, in the event of a failure, there is no significant out-of-trim condition or deviation of flight path or attitude but the landing is not completed automatically, such an automatic landing system is considered as:
102 - In the directional gyro the detection system of the local vertical feeds:
103 - During deceleration following a landing in an easterly direction, a magnetic compass made for the southern hemisphere indicates:
104 - When engaged in the lateral navigation mode (LNAV) the autopilot uses:
105 - Flight Director Information supplied by an FD computer is presented in the form of command bars on the following instrument:
106 - During deceleration following a landing in a northerly direction, a magnetic compass made for the southern hemisphere indicates:
107 - The velocity maximum operating (V.M.O.) is a speed expressed in:
108 - While inertial platform system is operating on board an aircraft, it is necessary to use a device with the following characteristics, in order to keep the vertical line with a pendulous system:
109 - In An Air Data Computer (ADC), aeroplane altitude is calculated from:
110 - The altitude alerting system:
111 - To be as accurate as possible, an anemometer must be calibrated according to the following formula:
112 - For the same TAS, when pressure altitude decreases below the tropopause:
113 - The gauge indicating the quantity of fuel measured by a capacity gauging system can be graduated directly in weight units because the dielectric constant of fuel is:
114 - A gravity type erector is used in a vertical gyro device to correct errors on:
115 - When flying in cold air (colder than standard atmosphere), the altimeter will:
116 - Concerning the flight warning system (FWS), advisory messages may be:
117 - At a given altitude, the hysteresis error of an altimeter varies substantially with the:
118 - A VMO-MMO warning device consists of an alarm connected to:
119 - In an auto-pilot slaved powered control circuit, the system which ensures synchronisation:
120 - When compared with the volumetric fuel flowmeter, the mass fuel flowmeter takes into account the fuel:
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