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Private Pilot > Flight Instruments > Flashcards

Flight Instruments Flashcards

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Charter Pilot (Part 135) - Oral flashcards
1
Q

What are the 2 major components of the pitot-static system?

A

The Impact Pressure Chamber (Pitot Tube) and the Static Pressure Chamber (Static Port).

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2
Q

What does the pitot tube do?

A

It takes in the RAM air pressure or impact pressure.

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3
Q

What does the static port do?

A

It provides the reference source of ambient air pressure.

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4
Q

What instruments does the pitot/static system control?

A

The airspeed indicator, the vertical speed indicator and the altimeter.

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5
Q

What happens if the pitot tube gets blocked at a low altitude?

A

High pressure air will get trapped in it making the airspeed indicator read higher when you climb.

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6
Q

What happens if the pitot tube gets blocked at a higher altitude?

A

Low pressure air will get trapped in it making the airspeed indicator read lower when you descend.

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7
Q

What does the altimeter measure?

A

It measures the height above sea level.

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8
Q

How does the altimeter work?

A

It measures the ambient air pressure from the static port. The higher you fly, the less air pressure. Less air pressure is indicated by a higher altitude on the altimeter. Vice Versa.

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9
Q

How does the airspeed indicator work?

A

By comparing the pitot pressure and the static pressure.

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10
Q

How does the vertical speed indicator work?

A

By measure the change in static pressure over time.

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11
Q

What type of airspeed is shown on the Airspeed Indicator?

A

Indicated Airspeed

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12
Q

What is calibrated airspeed?

A

It is the indicated airspeed corrected for installation and instrument errors.

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13
Q

What is true airspeed?

A

It is calibrated airspeed corrected for variations in temperature and pressure.

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14
Q

What does the white arc on the airspeed indicator represent?

A

It represents the flap operating range.

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15
Q

What does Vs0 represent?

A

The stalling speed in landing configuration when the flaps are down.

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16
Q

What does Vs1 represent?

A

The stalling speed in a clean configuration when the flaps are up.

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17
Q

What does Vfe represent?

A

The maximum speed with the flaps extended.

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18
Q

What does the green arc on the airspeed indicator represent?

A

The normal operating range of the aircraft.

19
Q

What does Vno represent?

A

The maximum speed of normal operations.

20
Q

What does the yellow arc on the airspeed indicator represent?

A

The caution range.

21
Q

What does the red Vne mark on the airspeed indicator represent?

A

The never exceed speed.

22
Q

What does Va represent?

A

Maneuvering speed.

23
Q

What does Vle represent?

A

Maximum landing gear extension speed.

24
Q

What does Vx represent?

A

The best angle-of-climb speed. The greatest altitude gain over a given distance. Used during a short-field takeoff to clear an obstacle.

25
Q

What does Vy represent.

A

The best rate-of-climb speed. Provides the most altitude gain in a given period of time.

26
Q

What does the Vertical Speed Indicator measure?

A

The rate of climb or descent in hundreds of feet per minutes.

27
Q

What does the altimeter indicate?

A

The height above mean sea level (MSL).

28
Q

Where do you set the barometric pressure on the altimeter?

A

The Kohlsman Window.

29
Q

What does the smallest hand on the altimeter represent?

A

10,000 feet

30
Q

What does the medium hand on the altimeter represent?

A

1,000 feet

31
Q

What does the biggest hand on the altimeter represent?

A

100 feet

32
Q

What is indicated altitude?

A

The altitude shown on the altimeter.

33
Q

What is true altitude?

A

The vertical distance of the aircraft above mean sea level (MSL).

34
Q

What is absolute altitude?

A

The vertical distance of the aircraft above ground level (AGL).

35
Q

What is pressure altitude?

A

The true altitude corrected for non-standard temperatures.

36
Q

What is density altitude?

A

Pressure altitude corrected for non-standard temperatures.

37
Q

What do you obtain the pressure altitude in an airplane?

A

Set the altimeter setting to 29.92” Hg and read off the altitude.

38
Q

What two instruments are reliant on a vacuum pump in a non glass cockpit airplane?

A

The heading and attitude indicators.

39
Q

What powers the magnetic compass in an aircraft?

A

No external power is needed for the magnetic compass.

40
Q

What does the magnetic compass point towards?

A

The magnetic North.

41
Q

What are some magnetic compass errors?

A

Acceleration errors, Turning errors, variation and deviation.

42
Q

What is an acceleration error?

A

When flying east - west, the compass will swing North if you accelerate and swing South if you decelerate.

43
Q

What is a turning error?

A

When turning away from the North, the compass will lag behind the turn. When rolling out to a southern heading, the compass will lead ahead.

44
Q

What is variation with regards to the magnetic compass?

A

It is the difference between true and magnetic directions.

Private Pilot (12 decks)

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