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(Airframe)Aircraft Instruments, Advanced Troubleshooting-A1-JB > Instruments Review > Flashcards

Instruments Review Flashcards

1
Q

What are the four instruments in a “T” arrangement of an instrument panel?

A

ALTIMETER,

ATTITUDE INDICATOR,

HEADING INDICATOR,

AIRSPEED

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2
Q

On an airspeed indicator, the red line means what?

A

NEVER EXCEED LIMIT

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3
Q

On an airspeed indicator, the white arc means what?

A

FLAP OPERATING SPEEDS

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4
Q

If you have a blue line on an airspeed indicator, what does it indicate?

A

SINGLE ENGINE BEST RATE OF CLIMB (ON MULTI-ENGINE AIRCRAFT)

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5
Q

On an airspeed indicator, the yellow arc means what?

A

CAUTION RANGE

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6
Q

The lower limit on a white arc of an airspeed indicator means what?

A

STALL SPEED WITH FLAPS EXTENDED

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7
Q

Ram air pressure is called what?

A

PITOT

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8
Q

Which instruments discussed in class would use the Pitot system?

A

AIRSPEED/MACH

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9
Q

Which instruments discussed in class would use the Static system?

A

ALTIMETER, ATTITUDE VERTICAL SPEED?

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10
Q

How often do you test a static system for leaks?

A

Anytime its opened or 24 CALENDAR MONTHS

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11
Q

Who can perform a static leak test?

A

AIRFRAME LICENSED MECHANIC

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12
Q

The pressure measurement that compares two measured pressures is?

A

DIFFERENTIAL PRESSURE INDICATOR

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13
Q

The pressure measurement that compares pressure to a vacuum is?

A

ABSOLUTE PRESSURE INDICATOR

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14
Q

Altimeters use what type of pressure measurement?

A

ABSOLUTE PRESSURE

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15
Q

Airspeed indicators use what type of pressure measurement?

A

DIFFERENTIAL PRESSURE

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16
Q

Why is true airspeed different than indicated airspeed?

A

TAKES AIR TEMPERATURE INTO CONSIDERATION

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17
Q

A vertical speed indicator works on what principle?

A

RATE OF CHANGE IN PRESSURE

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18
Q

The instrument that indicates aircraft speed compared to the speed of sound is what?

A

MACHMETER

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19
Q

Name some instruments that measure absolute pressure?

A

ALTIMETER, VERTICAL SPEED

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20
Q

Name some instruments that measure differential pressure?

A

AIRSPEED, and pressure switch

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21
Q

What is the reading on the altimeter?

A

1280FT

22
Q

When referring to a gyro, rigidity in space means what?

A

OBJECT SPINNING AROUND AXIS WILL MAINTAIN POSITION

23
Q

What is precession?

A

OBJECT SPINNING AROUND AXIS, WHEN FORCE ACTS UPON IT, IT WILL TAKE 90 DEGREES TO TAKE EFFECT

24
Q

Which indicator uses rigidity in space to indicate to the pilots the direction of the aircraft?

A

ATTITUDE INDICATOR, HEADING INDICATOR

25
Q

On a drum type heading indicator, the compass card is attached to what?

A

GIMBAL

26
Q

What is a lubber line?

A

LINE PAINTED ON GLASS TO INDICATE DIRECTION

27
Q

Which property of a gyro is used to indicate the position of the aircraft in relation to the horizon?

A

RIGIDITY IN SPACE

28
Q

The Attitude Director Indicator has what function that the Attitude Indicator does not?

A

AUTO PILOT, COMMAND BARS (FLIGHT DIRECTOR)

29
Q

What is the difference between the Turn and Slip indicator, and the Turn Coordinator?

A

COORDINATOR INCLUDES ROLL AND YAW

30
Q

What is magnetic deviation?

A

INTERFERENCE FROM COCKPIT

31
Q

What is swinging the compass?

A

COMPENSATING FOR MAGNETIC DEVIATION

32
Q

In the slaved gyro system, what provides the magnetic north reference?

A

FLUX VALVES

33
Q

What is the difference between true north and magnetic north called?

A

MAGNETIC VARIATION

34
Q

What type of temperature gauge is commonly used on small aircraft?

A

Gas expansion

35
Q

The type of mechanism that a gas expansion temperature indicator uses?

A

BOURDON TUBE

36
Q

Aerobatic aircraft use this instrument to indicate to the pilots that they are near design load limits?

A

ACCELEROMETER (G-METER)

37
Q

What is the main drawback of a Wheatstone bridge type electrical temperature indicator?

A

NOT STABLE POWER SOURCE

38
Q

This instrument is used to indicate engine RPM?

A

TACHOMETER

39
Q

What is a Synchroscope used for?

A

SYNCHRONIZING TWO ENGINES (OR GENERATORS)

40
Q

What type of temperature indicator would be used to measure very high temperatures?

A

THERMOCOUPLE

41
Q

If an aircraft does not have a vacuum pump what would be used to provide the suction needed to run the vacuum driven gyros?

A

VENTURI

42
Q

What type of vacuum pump is required to have an air / oil separator?

A

WET TYPE

43
Q

Where would the filters be located in an instrument vacuum system?

A

INLET OF THE SYSTEM AND BETWEEN REGULATOR AND INLET OF PUMP

44
Q

What type of aircraft would use a pressure type system to power the aircraft gyros?

A

AIRCRAFT THAT FLY ABOVE 18,000 FT

45
Q

What are the two types of vacuum pumps?

A

WET AND DRY TYPE

46
Q

How are erratic indications on a mechanical fuel indication system prevented?

A

MAGNET

47
Q

What is the float attached to on a DC electric fuel quantity indication system?

A

VARIABLE RESISTOR

48
Q

What is used as the dielectric on a capacitance fuel quantity indication system?

A

FUEL OR AIR

49
Q

What does a compensator unit do on a capacitance fuel quantity system?

A

FUEL DENSITY

50
Q

What are the two primary instruments in an EFIS system?

A

ELECTRONIC ATTITUDE DIRECTOR INDICATOR (EADI)
ELECTRONIC HORIZONTAL SITUATION INDICATOR (EHSI)

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

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