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ATPL > Instrumentation > Flashcards

Instrumentation Flashcards

1
Q

What is static pressure

A

Static pressure is the equal weight of all the air molecules at any one point in the atmosphere

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2
Q

What is dynamic pressure

A

Dynamic pressure is the pressure of the air molecules impacting onto a surface

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3
Q

What is density altitude

A

Altitude in the standard atmosphere at which the prevailing density is equal to the density in the standard atmosphere

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4
Q

Describe IAS

A

Indicated airspeed that translates the dynamic pressure to a speed on the airspeed indicator

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5
Q

Describe TAS

A

True airspeed is the actual speed of an aircraft through the air mass in which it is flying

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6
Q

What are the most common altimeter errors

A

Instrument error, pressure error, time lag error

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7
Q

The Mac matter consist of

A

And airspeed indicator with an altimeter capsule

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8
Q

How does a gyroscope work

A

A gyroscope measures the force experience on its rotor body during a maneuver of an aircraft

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9
Q

What are the elements that composed a DGI

A

Twi degrees of freedom and a horizontal spin axis

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10
Q

What is the purpose of the latitude not in a DGI

A

Correct for earth rate

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11
Q

Which of the following Gyro instruments has one degree of freedom

A

Turn indicator

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12
Q

What are the most common artificial horizon error

A

Turning error, acceleration error, real wander of the gyro’s spin axis

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13
Q

Describe the magnetic compass

A

It is the primary source of directional information and display compass heading

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14
Q

What is the magnetic dip

A

It is a natural phenomenon of the vertical component of the magnetic field over the earth surface

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15
Q

What is a horizontal situation indicator HSI

A

It is comprised of a remote indicated compass and an instrument lending system

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16
Q

What is a TCAS

A

It uses the aircraft’s secondary surveillance rather transponders

17
Q

How many are the main boats over GPWS

A

6

18
Q

GPWS system requires

A

Oral signals which may be supplemented by visual signals

19
Q

What is true about the VHF communications

A

VHF radio transmissions use line of sight propagation path

20
Q

What is true about the autopilot

A

An auto pilot will detect a disturbance and correct it in approximately 50 Ms

21
Q

Describe an autoland system

A

It is designed to carry out automatic landings providing better guidance and control

22
Q

What is true about a yaw dumper

A

It can be used in manual or automatic flight

ATPL (7 decks)

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