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(Airframe)Aircraft Instruments, Advanced Troubleshooting-A1-JB > Jeppesen Ch. 11 Sec. A > Flashcards

Jeppesen Ch. 11 Sec. A Flashcards

1
Q
  1. Pressure may be measured in three ways. These are
    a.____ pressure
    b.____ pressure
    c.____ pressure.
A

Absolute
Gauge
Differential

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2
Q
  1. Under standard day conditions, atmospheric pressure is ___ inches of Mercury or ___ psi
A

29.92
14.7

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3
Q
  1. An aneroid barometer measures ___ (absolute or gauge) pressure.
A

Absolute

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4
Q
  1. The difference between atmospheric pressure and the pressure being measured is called ___ pressure.
A

Gauge

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5
Q
  1. An) ___ type instrument is used to measure high pressures.
A

Bourdon

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6
Q
  1. The two pressures sensed by the airspeed indicator are:
    a.____
    b.____
A

Pitot
Static

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7
Q
  1. The manifold pressure gauge measures the ___ (absolute or gauge) pressure inside the
    induction system of a reciprocating engine.
A

Absolute

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8
Q
  1. The instrument that measures the differential pressure between the tailpipe total pressure and the compressor inlet total pressure of a turbine engine is the ____ ____ ____ indicator.
A

Engine Pressure Ratio

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9
Q
  1. The ____ measures the absolute pressure of the air surrounding the aircraft.
A

Altimeter

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10
Q
  1. The altitude shown on an altimeter when the local altimeter setting is placed in the barometric window is called ____ altitude
A

indicated

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11
Q
  1. All elevations on aeronautical charts are measured from ____ ____ ____.
A

Mean Sea Level

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12
Q
  1. The scale in the barometric window of an altimeter may be calibrated in ____ of ____ or ____ .
A

Inches
Mercury (Hg)
millibars

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13
Q
  1. The altitude shown on an altimeter when standard sea level pressure is put into the barometric window is called ____ altitude.
A

pressure

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14
Q
  1. Flight level 320 is a pressure altitude of ____ feet.
A

32,000

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15
Q
  1. Pressure altitude may be converted into density altitude by correcting the pressure altitude for non-standard ____.
A

temperature

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16
Q
  1. Density altitude ____ (is or is not) a direct measurement.
A

Is not

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17
Q
  1. When static ports are exposed to disturbed air. the results are altimeter system errors known as ____ error.
A

position

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18
Q
  1. Radio altimeters provide an indication of the aircraft’s ____ altitude above ____(sea level or ground level) .
A

Absolute
Ground level

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19
Q
  1. The tests required for a static system of an aircraft operated under instrument flight rules is described in FAR Part ____.
A

91.411

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20
Q
  1. Altimeters installed in aircraft that operate under înstrument flight rules must have their accuracy checked every ____ (how many) calendar months.
A

24

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21
Q
  1. The uncorrected reading of an airspeed indicator is called ____ airspeed.
A

Indicated

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22
Q
  1. For navigation and flight planning purposes, a pilot is most interested in ___ (calibrated or true) airspeed.
A

True

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23
Q
  1. An instrument that measures aircraft speed relative to the speed of sound is called a ___.
A

Machmeter

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24
Q
  1. Mach ___ is flight at an airspeed of 95% of the speed of sound.
A

0.95

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25
Q
  1. The rate-of-climb indicator is more properly known as the ___ ___ indicator.
A

Vertical Speed

26
Q
  1. A vertical speed indicator measures the rate of change of __ (pitot or static) pressure.
A

Static

27
Q
  1. Resistance change-type temperature measuring instruments may use either a(n) ___ or ___ a(n) ___ circuit.
A

Wheatstone bridge
Ratiometer

28
Q
  1. A(n) ___ instrument is typically used to measure high temperatures.
A

Thermocouple

29
Q
  1. It ___ (is or is not) permissible to cut off excess length of thermocouple leads.
A

Is not

30
Q
  1. An ___ terms of G’s. gives the pilot an indication of the load imposed on the aircraft structure in
A

Accelerometer (G-meter)

31
Q
  1. The ___ rotations. is used by the pilot of a twin-engine aircraft to synchronize the propeller rotations.
A

Synchroscope

32
Q
  1. A(n) ___ is an instrument that displays engine RPM.
A

Tachometer

33
Q
  1. The two basic characteristics of a gyroscope that makes it useful as a flight instrument are:
    a.____
    b.____
A

Pitch ( Lateral )
Roll ( Longitudinal )

34
Q
  1. An attitude gyro uses the gyroscopic characteristic of ___.
A

Rigidity in space

35
Q
  1. The artificial horizon indicator senses rotation of an aircraft about which two of its axes?
    a.___
    b.___
A

Pitch ( Lateral )
Roll ( Longitudinal )

36
Q
  1. The turn and slip indicator senses rotation about the ___ (which axis) axis of the aircraft.
A

Vertical

37
Q
  1. A rate gyro uses the gyroscopic characteristic of ___.
A

Precession

38
Q
  1. The turn and slip indicator is actually ten instruments in one housing, the non gyroscopic instrument is called a(n) ___.
A

Inclinometer

39
Q
  1. Because navigation charts are laid out according to the geographic poles and a magnetic compass points to the magnetic poles, the difference between the positions is called ___.
A

Variation

40
Q
  1. Lines of equal variation on aeronautical charts are called ___ lines.
A

Isogonic

41
Q
  1. The line of zero variation is known as the ___ line.
A

Agonic

42
Q
  1. Compass ___ (deviation or variation) is caused by the magnetic fields in the aircraft
    that interfere with those of the earth.
A

Deviation

43
Q
  1. Swinging a compass compensates for ___ (deviation or variation).
A

Deviation

44
Q
  1. Two magnetic compass errors that a pilot must compensate for while in flight are ___
    error and ___ error
A

Turning
Acceleration

45
Q
  1. A ___ gyro combines a directional gyro with direction-sensing instrumentation.
A

Slaved

46
Q
  1. Two major disadvantages to venturi systems for driving flight instruments are:
    a____
    b____
A

Susceptible to icing

Produces no vacuum until the airplane is flying

47
Q
  1. The rotor vanes of a dry-type vacuum pump are made of ____ (carbon or steel).
A

Carbon

48
Q
  1. Air-driven gyroscopic instruments require very ____ air.
A

Clean

49
Q
  1. An A&P maintenance technician instrument ____ (can or cannot) disassemble and repair an aircraft
A

Cannot

50
Q
  1. Three instruments that are connected to the static system are:
    a____
    b____
    c____
A

Airspeed and/ or Mach Indicator

Altimeter

Vertical Speed

51
Q
  1. To prevent ice from obstructing a pitot tube, ____ (what type) heaters are used.
A

Electric

52
Q
  1. The alternate source valve in the aircraft flight instrument system is in the ___ (pitot
    or static) system.
A

Static

53
Q
  1. Direct current electrical fuel quantity indicators use a variable ____ as a tank unit, or sender.
A

Resistor

54
Q
  1. The dielectric value of air is ____.
A

One

55
Q
  1. The dielectric value of fuel is approximately ____, but varies according to its temperature.
A

Two

56
Q
  1. In a capacitance type fuel quantity indicating system the two dielectric materials used are ____ and ____.
A

Air
Fuel

57
Q
  1. Fuel pressure is typically measured in ____.
A

Pounds per square inch (PSI)

58
Q
  1. The mass type flowmeter is the ____ (most or least) accurate method of measuring fuel flow.
A

Most

59
Q
  1. What is meant by each of these sets of letters?
    a. EFIS _____
    b. CRT _____
    c. EADI _____
    d. ARINC _____
    e. EHSI _____
A

Electronic Flight Instrument System

Cathode Ray Tube

Electronic Attitude Deviation Indicator

Aeronautical Radio, Inc.

Electronic Horizontal Situation Indicator

60
Q
  1. Greenwich mean time is also known as ____ time.
A

Zulu or Z

(Airframe)Aircraft Instruments, Advanced Troubleshooting-A1-JB (3 decks)

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