Flight instruments Flashcards

1
Q

Which instrument will become inoperative if the pitot tube becomes clogged?

A-altimeter.

B-vertical speed.

C-airspeed.

A

C-airspeed.

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2
Q

Which instrument(s) will become inoperative the static vents become clogged?

A-airspeed only.

B-altimeter only.

C-airspeed, altimeter, and vertical speed.

A

C-airspeed, altimeter, and vertical speed.

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3
Q

If the pitot tube and outside static vents become clogged, which instruments would be affected?

A-the altimeter, airspeed indicator, and turn-and-slip indicator.

B-the altimeter, airspeed indicator, and vertical speed indicator.

C-the altimeter, attitude indicator, and turn-and-slip indicator.

A

B-the altimeter, airspeed indicator, and vertical speed indicator.

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4
Q

The pitot system provides impact pressure for which instrument?

A-altimeter.

B-vertical speed indicator.

C-airspeed indicator.

A

C-airspeed indicator.

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5
Q

Which V-speed represents maneuvering speed?

A-Va.

B-Vlo.

C-Vne.

A

A-Va.

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6
Q

What does the red line on an airspeed indicator represent?

A-maneuvering speed.

b-turbulent or rough-air speed.

C-never-exceed speed.

A

C-never-exceed speed.

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7
Q

(Refer to figure 4.) Which color identifies the never-exceed speed?

A-upper limit of the green arc.

B-upper limit of the white arc.

C-the red radial line.

A

C-the red radial line.

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8
Q

If an altimeter setting is not available before flight, to which altitude should the pilot adjust the altimeter?

A-the elevation of the nearest airport corrected to mean sea level.

B-the elevation of the departure area.

C-pressure altitude corrected for nonstandard temperature.

A

B-the elevation of the departure area.

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9
Q

Prior to takeoff, the altimeter should be set to which altitude or altimeter setting?

A-the current local altimeter setting, if available, or the departure airport elevation.

B-the corrected density altitude of the departure airport.

C-the corrected pressure altitude of the departure airport.

A

A-the current local altimeter setting, if available, or the departure airport elevation.

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10
Q

At what altitude shall the altimeter be set to 29.92, when climbing to causing flight level?

A-14,500 feet MSL.

B-18,000 feet MSL.

C-24,000 feet MSL.

A

B-18,000 feet MSL.

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11
Q

Altimeter setting is the value to which the barometric pressure scale of the altimeter is set so the altimeter indicates:

A-calibrated altitude at field elevation.

B-absolute altitude at field elevation.

C-true altitude at field elevation.

A

C-true altitude at field elevation.

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12
Q

How do variations in temperature affect the altimeter?

A-pressure levels are raised on warm days, and the indicated altitude is lower than true altitude.

B-higher temperatures expand the pressure levels and the indicated altitude is higher than true altitude.

C-lower temperatures lower the pressure levels and the indicated altitude is lower than true altitude.

A

A-pressure levels are raised on warm days, and the indicated altitude is lower than true altitude.

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13
Q

What is true altitude?

A-the vertical distance of the aircraft above sea level.

B-the vertical distance of the aircraft above the surface.

C-the height above the standard datum plane.

A

A-the vertical distance of the aircraft above sea level.

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14
Q

Under what condition will true altitude be lower than indicated altitude?

A-in colder than standard air temperature.

B-in warmer than standard air temperature.

C-when density altitude is higher than indicated altitude.

A

A-in colder than standard air temperature.

Colder, true lower.

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15
Q

What is absolute altitude?

A-the altitude read directly from the altimeter.

B-the vertical distance of the aircraft above the surface.

C-the height above the standard datum plane.

A

B-the vertical distance of the aircraft above the surface.

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16
Q

What is density altitude?

A-the height above the standard datum plane.

B-the temperature pressure altitude corrected for nonstandard temperature.

C-the altitude read directly from the altimeter.

A

B-the temperature pressure altitude corrected for nonstandard temperature.

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17
Q

What is pressure altitude?

A-the indicated altitude corrected for position and installation error.

B-the altitude indicated when the barometric pressure scale is set to 29.92.

C-the indicated altitude corrected for nonstandard temperature and pressure.

A

B-the altitude indicated when the barometric pressure scale is set to 29.92.

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18
Q

Under what condition is the indicated altitude the same as true altitude?

A-if the altimeter has no mechanical error.

B-when at sea level under standard conditions.

C-when at 18,000 feet MSL with the altimeter set at 29.92.

A

B-when at sea level under standard conditions.

19
Q

If it is necessary to set the altimeter from 29.15 to 29.85, what changes occurs?

A-70-foot increase in indicated altitude.

B-70-foot increase in density altitude.

C-700-foot increase in indicated altitude.

A

C-700-foot increase in indicated altitude.

1” hg = 1,000 FEET (29.85 - 29.15= .70)
.70 of 1= 700 of 1,000

20
Q

Under which condition will pressure altitude be equal to true altitude?

A-when the atmospheric pressure is 29.92” Hg.

B-when standard atmospheric conditions exist.

C-when indicated altitude is equal to the pressure altitude.

A

B-when standard atmospheric conditions exist.

21
Q

Under what condition is pressure altitude and density altitude the same value?

A-at sea level, when the temperature is at 0 degrees F

B-when the altimeter has no installation error.

C-at standard temperature.

A

C-at standard temperature.

22
Q

If a flight is made from an area of low pressure into an area of high pressure without the altimeter setting being adjusted, the altimeter will indicate:

A-the actual altitude above sea level.

B-higher than the actual altitude above sea level.

C-lower than the actual altitude above sea level.

A

C-lower than the actual altitude above sea level.

23
Q

If a flight is made from an area of high pressure into an area of low pressure without the altimeter setting being adjusted, the altimeter will indicate:

A-lower than the actual altitude above sea level.

B-higher than the actual altitude above sea level.

C-the actual altitude above sea level.

A

B-higher than the actual altitude above sea level.

24
Q

Which condition would cause the altimeter to indicate a lower altitude than true altitude?

A-air temperature lower than standard.

B-atmospheric pressure lower than standard.

C-air temperature warmer than standard.

A

C-air temperature warmer than standard.

Warmer, indicated lower.

25
Q

(Refer to figure 3.) Altimeter 1 indicates:

A-500 feet.

B-1,500 feet.

C-10,500 feet.

A

C-10,500 feet.

26
Q

(Refer to figure 3.) Altimeter 2 indicates:

A-1,500 feet.

B-4,500 feet.

C-14,500 feet.

A

C-14,500 feet.

27
Q

(Refer to figure 3.) Altimeter 3 indicates:

A-9,500 feet.

B-10,950 feet.

C-15,940 feet.

A

A-9,500 feet.

28
Q

(Refer to figure 3.) Which altimeter(s) indicate(s) more than 10,000 feet?

A-1,2, and 3.

B-1 and 2 only.

C-1 only.

A

B-1 and 2 only.

29
Q

(Refer to figure 82.) Altimeter 3 is indicated a VFR causing altitude for which direction?

A-180 degrees-359 degrees magnetic.

B-179 degrees true.

C-080 degrees magnetic.

A

C-080 degrees magnetic.

30
Q

If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication?

A-altimeter will indicate .15” Hg higher.

B-altimeter will indicate 150 feet higher.

C-altimeter will indicate 150 feet lower.

A

C-altimeter will indicate 150 feet lower.

30.11-29.96= .15
.15 of 1000 is 150

31
Q

(Refer to figure 7.) How should a pilot determine the direction of bank from an attitude indicator such as the one illustrated?

A-by direction of deflection of the banking scale (A).

B-by the direction of deflection of the horizon bar (B).

C-by the relationship of the miniature airplane (C) to the deflected horizon bar (B).

A

C-by the relationship of the miniature airplane (C) to the deflected horizon bar (B).

32
Q

(Refer to figure 7.) The proper adjustment to make on the attitude indicator during level flight is to align the:

A-horizon bar to the level-flight indication.

B-horizon bar to the miniature airplane.

C-miniature airplane to the horizon bar.

A

C-miniature airplane to the horizon bar.

33
Q

(Refer to figure 6.) To receive accurate indications during flight from a heading indicator, the instrument must be:

A-set prior to flight on a known heading.

B-calibrated on a compass rose at regular intervals.

C-periodically realigned with the magnetic compass as the gyro precesses.

A

C-periodically realigned with the magnetic compass as the gyro precesses.

34
Q

Deviation in a magnetic compass is caused by the:

A-presence of flaws in the permanent magnets of the compass.

B-difference in the location between true north and magnetic north.

C-magnetic fields within the aircraft distorting the lines of magnetic force.

A

C-magnetic fields within the aircraft distorting the lines of magnetic force.

35
Q

The angular difference between true north and magnetic north is:

A-magnetic deviation.

B-magnetic variation.

C-compass acceleration error.

A

B-magnetic variation.

36
Q

Deviation error of the magnetic compass is caused by:

A-a northerly turning error.

B-certain metals and electrical systems within the aircraft.

C-the difference in location of true north and magnetic north.

A

B-certain metals and electrical systems within the aircraft.

37
Q

In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if:

A-an aircraft is decelerated while on an east or west heading.

B-a left turn is entered from a west heading.

C-an aircraft is accelerated while on and east or west heading.

A

C-an aircraft is accelerated while on and east or west heading.

38
Q

In the Northern Hemisphere, the magnetic compass will normally indicate a turn toward the south when:

A-a left turn is entered from an east heading.

B-a right turn is entered from a west heading.

C-the aircraft is decelerated while on a west heading.

A

C-the aircraft is decelerated while on a west heading.

39
Q

What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a south heading in the Northern Hemisphere?

A-the compass will initially indicated a turn to the left.

B-the compass will indicate a turn to the right, but at a faster rate than is actually occurring.

C-the compass will remain on south for a short time, then gradually catch up to the magnetic heading of the airplane.

A

B-the compass will indicate a turn to the right, but at a faster rate than is actually occurring.

40
Q

In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate:

A-a turn momentarily.

B-correctly when on a north or south heading.

C-a turn toward the south.

A

B-correctly when on a north or south heading.

41
Q

In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the west if:

A-a left turn is entered from a north heading.

B-a right turn is entered from a north heading.

C-an aircraft is accelerated while on a north heading.

A

B-a right turn is entered from a north heading.

42
Q

In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the east if:

A-an aircraft is decelerated while on a south heading.

B-an aircraft is accelerated while on a north heading.

C-a left turn is entered from a north heading.

A

C-a left turn is entered from a north heading.

43
Q

During flight, when are the indications of a magnetic compass accurate?

A-only in straight-and-level unaccelerated flight.

B-as long as the airspeed is constant.

C-during turns if the bank does not exceed 18 degrees.

A

A-only in straight-and-level unaccelerated flight.