AIRCRAFT GENERAL KNOWLEDGE (2) INSTRUMENTATION
1 The purpose of the vibrating device of an altimeter is to:
A reduce the effect of friction in the linkages
B inform the crew of a failure of the instrument
C allow damping of the measurement in the unit
D reduce the hysteresis effect
2 The error in altimeter readings caused by the variation of the static pressure near the source
is known as:
A instrument error.
B hysteresis effect.
C position pressure error
D barometric error.
3 VFE is the maximum speed:
A with the flaps extended in a given position.
B with the flaps extended in landing position.
C at which the flaps can be operated in turbulence.
D with the flaps extended in take-off position.
4 The airspeed indicator of a twin-engine aircraft comprises different sectors and colour marks.
The blue line corresponds to the:
A minimum control speed, or VMC
B maximum speed in operations, or VMO
C optimum climbing speed with one engine inoperative, or Vy
D speed not to be exceeded, or VNE
5 Indication of Mach number is obtained from:
A Indicated speed and altitude using a speed indicator equipped with an altimeter type
B An ordinary airspeed indicator scaled for Mach numbers instead of knots
C A kind of echo sound comparing velocity of sound with indicated speed
D Indicated speed (IAS) compared with true air speed (TAS) from the air data computer
6 In the building principle of a gyroscope, the best efficiency is obtained through the
concentration of the mass:
A on the periphery and with a high rotation speed.
B close to the axis and with a high rotation speed.
C on the periphery and with a low rotation speed.
D close to the axis and with a low rotation speed.
7 Concerning the directional gyro indicator, the latitude at which the apparent wander is equal to
A the equator
B latitude 30°
C latitude 45°
D the North pole