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Module 11B > 11.5.1 - Instrument System - 5q > Flashcards

11.5.1 - Instrument System - 5q Flashcards

1
Q

What is meant by Gyro Precession?

A
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2
Q

What is meant by Variation?

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3
Q

Gauge comes to a rest when ?

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4
Q

Airspeed indicator responds to a change in ?

A
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5
Q

Mach meter transduces what 2 properties?

A
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6
Q

Direction indicator is corrected in flight how?

A
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7
Q

Air Driven Gyro
* Compared to electric and how driven?

A
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8
Q

INS
* What based and not relying on?
* Tolerates what?

A
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9
Q

DADC inputs are what? (3)

A
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10
Q

Weather radar is what letter band? (2)

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11
Q

VOR - Some freq. overlap with what?

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12
Q

HF transmissions are what range?

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13
Q

MLS landing beacons = ft? miles?

A
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14
Q

Precipitation static is caused by what?

A
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15
Q

QFE = ?
QNH = ?
QNE = ?

A

To remember:
QFE = FE = Field Elevation, height above airfield i.e when on airfield altimeter reads 0 ft

QNH = NH = National Health (Service) NHS - height above sea level, if drown in sea, taken to NHS hospital i.e when on airfield altimeter reads elevation (weston is 155ft above S.L example)

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16
Q

When is Apparent wander of a directional gyro max?

A
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17
Q

Direction gyro should be checked how often for drift?

A
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18
Q

What is special about a Vertical Gyro?

A
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19
Q

Apparent drift is due to what?

A
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20
Q

Pressure varies with ?

A
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21
Q

Equivalent airspeed = ?

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22
Q

Failure of a gyro is indicated how?

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23
Q

Compass swing?

A
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24
Q

Standby Compass is what?

A
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25
Q

Horizontality of a compass, magnets are suspended where in relation to CofG?

A
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26
Q

If the static line is leaking, what would the VSI show?

A
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27
Q

What is the pressure at 18,000 ft?

A
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28
Q

Overspeed warning gives what type of sound?

A
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29
Q

What is the % of oxygen vs nitrogen?

A
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30
Q

What is meant by Lapse Rate?

A
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31
Q

ICAO = ?^ North/South/East/West

A
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32
Q

IAS used for?
TAS used for?

A
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33
Q

What is the formula for TAT:
TAT = ?

A
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34
Q

What does the VSI use to correct lagging?

A
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35
Q

A Sensor and potentiometer control what?

A
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36
Q

Getting a message on ECAM would indicate what?

A
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37
Q

Answer for Compass
* Degrees
* magnetic ?
* Flux ?

A
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38
Q
  1. Precipitation static is caused by
    a) HF radiation
    b) lightning strikes
    c) skin to air particle collisions
A

c) skin to air particle collisions

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39
Q
  1. A machmeter works
    a) above 10000ft
    b) always
    c) always except on the ground
A

b) always

40
Q
  1. Where is alpha angle used?
    a) Accelerometer
    b) IPS
    c) Angle of attack
A

c) Angle of attack

41
Q
  1. In Airways flying, what is the barometric scale of the altimeter set to?
    a) QFE
    b) QNH
    c) 1013.25
A

c) 1013.25

42
Q
  1. Pitot tubes are heated
    a) electrically
    b) by compressed bleed air
    c) by kinetic heating
A

a) electrically

43
Q
  1. On a standard day at which altitude will the speed of sound be the greatest?
    a) sea level
    b) 10,000ft
    c) 20,000 ft
A

a) sea level

44
Q
  1. The apparent wander for directional gyros is
    a) compensated by applying a constant torque
    b) maximum at the pole
    c) dependant on longitude
A

b) maximum at the pole

45
Q
  1. The Directional Gyro is checked every 15 minutes for
    a) toppling
    b) drift
    c) erection
A

b) drift

46
Q
  1. . Random drift of a gyro is caused by
    a) error in roll when aircraft is turning
    b) gyro friction and unbalance
    c) movement of the aircraft
A

b) gyro friction and unbalance

47
Q
  1. Vertical Gyro has mercury switches on
    a) inner gimbal
    b) outer gimbal
    c) all gimbals
A

c) all gimbals

48
Q
  1. On an EADI the command bars show
    a) required flight path compared with horizon
    b) required flight path compared to planned flight path
    c) required flight path compared with aircraft position
A

c) required flight path compared with aircraft position

49
Q
  1. The airdata computer inputs to
    a) mach meter, , ASI, VSI
    b) standby altimeter, machmeters, ASI, cabin rate sensor
    c) altimeter, VOR, secondary radar
A

a) mach meter, , ASI, VSI

50
Q
  1. . What happens to the capacitance in a fuel contents gauge as fuel is used?
    a) Increases
    b) Decreases
    c) Depends on altitude
A

b) Decreases

51
Q
  1. Compared to air driven gyros, the electric gyro runs
    a) faster
    b) slower
    c) same speed
A

a) faster

52
Q
  1. What is apparent drift?
    a) earths rotation
    b) errors when aircraft banking
    c) gyro pivot friction
A

a) earths rotation

53
Q
  1. An aircraft airspeed indicator has
    a) pitot and static to the capsule
    b) static to the capsule and pitot to the outside of the capsule
    c) pitot to the capsule and static to the outside of the capsule
A

c) pitot to the capsule and static to the outside of the capsule

54
Q
  1. On a standard day at which altitude will the speed of sound be the highest?
    a) Sea Level
    b) 5,000 ft
    c) 10,000 ft
A

a) Sea Level

55
Q
  1. . Random precession of the inner gimbal ring is detected by placing mercury switches
    a) on inner gimbal ring
    b) on outer gimbal ring
    c) on both gimbal ring
A

a) on inner gimbal ring

56
Q
  1. ‘Q’ feel for the stabiliser requires
    a) pitot only
    b) static only
    c) pitot and static
A

c) pitot and static

57
Q

20.The applied pressure to an ASI varies with the
a) square of the speed
b) square root of the speed
c) cube root of the speed

A

a) square of the speed

58
Q
  1. Equivalent airspeed is
    a) indicated airspeed corrected for IE and PE
    b) rectified airspeed corrected for compressibility
    c) calibrated airspeed corrected for compressibility
A

c) calibrated airspeed corrected for compressibility

59
Q
  1. An arrow marked on the case of an airspeed switch (differential) indicates
    a The direction of pitot pressure
    b The mounting attitude
    c The front of the switch
A

b The mounting attitude

60
Q

23.A pitot static leak check is required when
a The drain traps are removed
b The pitot head is replaced
c Any part of the pitot static system is replaced

A

c Any part of the pitot static system is replaced

61
Q

24.What effect does temperature have on the capsule of a static transducer
a It causes the capsule to expand in unison with the I bar linkage
b Has no effect on the capsules
c It causes the capsules to expand or contract

A

c It causes the capsules to expand or contract

62
Q
  1. An A.S.I. will have several required flight limitations indicated by coloured arcs or radial lines. A white arc on the instrument face is used to indicate the;
    A. Flap Range.
    B. Normal operating range.
    C. Caution Range.
A

A. Flap Range.

63
Q
  1. An aircraft Standby Horizon Indicator will receive it’s pitch and roll information from:a. The No. 1 Vertical Gyro
    b. The Left Inertial Reference System
    c. Its own self-contained gyro.
A

c. Its own self-contained gyro.

64
Q
  1. Failure of the attitude referencing/indicating system is indicated by
    a A GYRO flag appearing on the ADI
    b The horizon tape driving to the full down position
    c A warning lamp illuminating on the ADI
A

a A GYRO flag appearing on the ADI

65
Q
  1. Transport rate error is due to
    a The earth’s rotation
    b The aircraft’s movement over the surface of the earth
    c The aircraft being moved during the align process
A

b The aircraft’s movement over the surface of the earth

66
Q
  1. Variation is defined as the angle between:
    A) True North and Compass North.
    B) Magnetic North and Compass North.
    C) True North and Magnetic North.
A

C) True North and Magnetic North.

67
Q
  1. A compass swing is used to:
    A) align magnetic north with true north.
    B) align compass north with magnetic north.
    C) align compass north with true north.
A

B) align compass north with magnetic north.

68
Q
  1. In a standby direct reading compass there is:
    A) a non-pendulously mounted magnet system.
    B) a circular magnet or pair of bar magnets pendulously mounted.
    C) a single pendulously mounted bar magnet.
A

B) a circular magnet or pair of bar magnets pendulously mounted.

69
Q
  1. During deceleration following a landing in Northerly direction, the magnetic compass will indicate:
    A) a heading fluctuating about 360° .
    B) an apparent turn to the West.
    C) no apparent turn.
A

C) no apparent turn.

70
Q
  1. During deceleration following a landing in a southerly direction, a magnetic compass made for the northern hemisphere indicates:
    A) an apparent turn to the east.
    B) no apparent turn only on northern latitudes.
    C) no apparent turn.
A

C) no apparent turn.

71
Q
  1. Concerning magnetic compasses, deviation is:
    A) A card in the cockpit showing compass heading errors.
    B) The angular difference between magnetic North and compass North.
    C) The angular difference between magnetic North and true North
A

C) The angular difference between magnetic North and true North

72
Q
  1. In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North if:
    A) an aircraft is accelerated while on an east or west heading.
    B) a left turn is entered from a west heading.
    C) an aircraft is decelerated while on an east or west heading.
A

A) an aircraft is accelerated while on an east or west heading.

73
Q
  1. In the northern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate:
    A) a heading fluctuating about 090° .
    B) an apparent turn to the North.
    C) an apparent turn to the South.
A

C) an apparent turn to the South.

ANDS - Accelerate North, Decelerate South

74
Q
  1. Which of the following will effect a direct reading compass?
    1) ferrous metals,
    2) non-ferrous metals
    3) electrical equipmentA) 1 & 3.
    B) 1 & 2.
    C) All 3.
A

A) 1 & 3.

75
Q
  1. To improve the horizontality of a compass, the magnet assembly is suspended from a point:
    A) above the centre of gravity.
    B) below the centre of gravity.
    C) on the centre line of the magnet.
A

A) above the centre of gravity.

76
Q
  1. Magnetic compass swinging is carried out to reduce as much as possible:
    A) variation.
    B) deviation.
    C) acceleration.
A

B) deviation.

77
Q
  1. The purpose of compass swinging is to determine the deviation of a magnetic compass:
    A) on a given heading.
    B) on any heading.
    C) at a given latitude.
A

B) on any heading.

78
Q
  1. An aircraft in climb maintains the same IAS. What is it’s true airspeed?
    a) Higher than its IAS
    b) Lower than its IAS
    c) The same as its IAS
A

a) Higher than its IAS

79
Q
  1. If a drain trap in a pitot static system is removed but nothing was found
    a) no leak test is required unless the drain trap contains water
    b) a leak test must be carried out even if nothing found
    c) a leak test is never required
A

b) a leak test must be carried out even if nothing found

80
Q
  1. The applied pressure to an ASI varies with the
    a) square of the speed
    b) square root of the speed
    c) cube root of the speed
A

a) square of the speed

81
Q
  1. Temperature compensation is required on an altimeter because of
    a) capsule elasticity
    b) capsule shape
    c) non linear pressure/height relationship
A

a) capsule elasticity

82
Q
  1. While carrying out a leak check of the altimeter, if the static is leaking, the VSI would
    a) indicate climb
    b) indicate descent
    c) not be affected
A

b) indicate descent

83
Q
  1. The instantaneous VSI is designed to
    a) overcome the inherent lag by utilising an accelerometer
    b) use an accelerometer to give a rate of climb/descent
    c) improve the VSI output during acceleration greater than 1g
A

a) overcome the inherent lag by utilising an accelerometer

84
Q
  1. When does the pressure in the standard atmosphere halve
    a) 12,000ft
    b) 5000ft
    c) 18,000ft
A

c) 18,000ft

85
Q
  1. . Instantaneous Vertical Speed Indicator has instant values of Vertical Speed by
    a) blocking off static and by using an accelerometer
    b) using a plunger to correct any lagging of the indicator
    c) blocking off pitot pressure and by using an accelerometer
A

b) using a plunger to correct any lagging of the indicator

86
Q
  1. What is the aural warning of an aircraft overspeed
    a) Bell sound
    b) Clacking sound
    c) Horn soun
A

b) Clacking sound

87
Q
  1. Earths atmosphere is
    a) 1/5 oxygen, 4/5 nitrogen
    b) 4/5 oxygen, 1/5 nitrogen
    c) 3/5 oxygen, 2/5 nitrogen
A

a) 1/5 oxygen, 4/5 nitrogen

88
Q
  1. What is lapse rate?
    a) Pressure changes with altitude
    b) Temperature changes with altitude
    c) Density changes with altitude
A

b) Temperature changes with altitude

89
Q
  1. What instrument uses ram air pressure and atmospheric pressure?
    a) ASI
    b) altimeter
    c) VSI
A

a) ASI

90
Q
  1. Instruments used on an aircraft are in some instances fitted with cover glasses whose surfaces are bloomed to reduce
    a) Parallax error
    b) Surface reflection
    c) Static to avoid dust attraction
A

b) Surface reflection

91
Q
  1. The pitot head is fitted on the aircraft. The alignment of pitot head is carried out with
    a) an inclinometer
    b) micrometer
    c) spirit level
A

a) an inclinometer

92
Q
  1. ICAO Standard atmosphere is
    a) taken from data measured at the equator
    b) taken from data measured at 45 degrees North
    c) relevant to set parameters
A

b) taken from data measured at 45 degrees North

93
Q
  1. A Mach meter
    a) compensates for square law
    b) does not compensate for square law
    c) uses a spring and bar
A

a) compensates for square law

94
Q
  1. Air density compensation requires
    a) OAT
    b) altitude
    c) altitude and OAT
A

c) altitude and OAT

95
Q
  1. Water contamination in a capacitance fuel system will
    a) cause contents to over read
    b) cause contents to under read
    c) short out capacitance probe and trip CB
A

a) cause contents to over read

96
Q
  1. In an Air Data System QNE is:a. The current pressure at sea level
    b. 1013.25 mB
    c. The current pressure at the airport
A

b. 1013.25 mB

97
Q
  1. A direct reading Bourdon gauge has a restriction in the inlet. This is to.
    A. prevent FOD ingestion.
    B. dampen sudden pressure changes.
    C. allow for calibration.
A

B. dampen sudden pressure changes.

Module 11B (42 decks)

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