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ATPL 22 AIRCRAFT GENERAL KNOWLEDGE – INSTRUMENTATION |
| 22.06 ALERTING SYSTEMS AND PROXIMITY SYSTEMS |
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1
The engine pressure ratio (epr) is computed by :
Dividing turbine discharge pressure by compressor inlet pressure. |
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2
An aeroplane is in steady climb. the autothrottle maintains a constant calibrated airspeed. if the total temperature remains constant, the mach number :
Increases. |
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3
All the last generation aircraft use flight control systems. the flight management system (fms) is the most advanced system . it can be defined as a:
Global 3-d flight management system |
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4
An airplane is in steady cruise at flight level 290. the autothrottle maintains a constant mach number. if the total temperature increases, the calibrated airspeed:
Remains constant. |
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5
The angle of attack transmitter provides an electric signal varying with: 1- the angular position of a wind vane 2- the deviation between the airplane flight attitude and the path calculated by the inertial unit 3- a probe differential pressure depending on the variation of the angle of attack the combination regrouping all the correct statements is:
1 and 3. |
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6
The calculator combined with the stick shaker system of a modern transport airplane receives information about the: 1- angle of attack 2- engine r.p.m. 3- configuration 4- pitch and bank attitude 5- sideslip the combination regrouping all the correct statements is:
1 and 3. |
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7
An airplane is in steady cruise at flight level 290. the autothrottle maintains a constant mach number. if the total temperature decreases, the calibrated airspeed:
Remains constant. |
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8
An airplane is in steady descent. the autothrottle maintains a constant mach number. if the total temperature remains constant, the calibrated airspeed:
Increases. |
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9
The stall warning system of a large transport airplane includes: 1- an angle of attack sensor 2- a computer 3- a transmitter originating from the anemometer 4- an independent pitot probe 5- a transmitter of the flap/slat position indicating system the combination regrouping all the correct statements is:
1, 2, 5. |
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10
An aeroplane is in steady descent. the autothrottle maintains a constant calibrated airspeed. if the total temperature remains constant, the mach number :
Decreases. |
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11
An aeroplane is in a steady climb. the autothrottle maintains a constant mach number. if the total temperature remains constant, the calibrated airspeed :
Decreases. |
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12
An aeroplane is in steady cruise at flight level 270. the autothrottle maintains a constant calibrated airspeed. if the total temperature increases, the mach number :
Remains constant. |
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13
The oncoming stall of a large transport airplane appears in the form of:
Control stick vibrations simulating natural buffeting. |
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14
The angle of attack transmitters placed laterally on the forward part of the fuselage supply an electrical signal indicating: 1- the angular position of a wind vane 2- a differential pressure in a probe, depending on the variation of the angle of attack 3- a differential pressure in a probe, depending on the variation of the speed the combination regrouping all the correct statements is: 5 france the purpose of the 1, 3. 2, 3. 1, 2, 3. 1, 2. 0 0 -1 0 automatic trim is to: 1- reduce to zero the hinge moment of the entire control surface in order to relieve the load on the servo-actuator 2- ensure the aeroplane is properly trimmed when the autopilot is disengaged 3- maintain the same stability/manoeuverablity trade-off within the whole flight envelope the combination regrouping all the correct statements is:
1, 2. |
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15
The stick shaker calculator receives the following informations : 1- mass of the airplane 2- angle of attack 3- wing flap deflection 4- position of the landing gear 5- total air temperature 6- pressure altitude the combination regrouping all the correct statements is:
2, 3 |
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16
The stall warning system receives information about the : 1- airplane angle of attack 2- airplane speed 3- airplane bank angle 4- airplane configuration 5- load factor on the airplane the combination regrouping all the correct statements is:
1, 4 |
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17
An aeroplane is in steady cruise at flight level 270. the autothrottle maintains a constant calibrated airspeed. if the total temperature decreases, the mach number :
Remains constant. |
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18
A full authority digital engine control (fadec) has the following functions : 1- flow regulation (fuel, decelerations and accelerations monitoring) 2- automatic starting sequence 3- transmissions of engine data to the pilot"s instruments 4- thrust management and protection of operation limits 5- monitoring of the thrust reversers the combination regrouping all the correct statements is:
1, 2, 3, 4, 5 |
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19
The two main sources of information used to calculate turbojet thrust pressure at the low pressure ratio). epr (engine pressure pressure at the high are the: outlet.
Fan rotation speed (or n1) or the epr (engine |
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20
Torque can be determined by measuring the :
Oil pressure at the fixed crown of an epicycloidal reducer of the main engine gearbox. |
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21
The main input data to the stall warning annunciator system are : 1- mach meter indication 2- angle of attack 3- indicate airspeed (ias) 4- aircraft configuration (flaps/slats) the combination regrouping all the correct statements is :
2,4 |