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Aircraft Instruments Test 2 Review > Lesson 14: Engine Instruments > Flashcards

Lesson 14: Engine Instruments Flashcards

1
Q

Power created by a reciprocating engine is a product of what?

A

Manifold Absolute Pressure

RPM

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2
Q

How could power output be increased?

A

RPM constant

MP increase

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3
Q

A constant MP and increased RMP will result in what?

A

Increase power

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4
Q

In a PISTON engine, what type of power instrument do we use?

A

MAP in “Hg

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5
Q

An important indicator of the engine power is?

A

Induction Manifold’s absolute pressure

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6
Q

What is the maximum difference between manifold pressure and atmospheric pressure?

A

Is at IDLE

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7
Q

What type of instrument do we use for our TURBINE engine?

A

EPR (Engine Pressure Ratio)

not direct measurement

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8
Q

Pt7 to inlet Pt2

A

EPR

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9
Q

What are the factors affecting EPR?

A

Pressure
Altitude
Speed
Temperature

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10
Q

Torque Indicator is used for what?

A

Turprop

Turboshaft

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11
Q

What is max power limited by in a torque indicator?

A

GEARBOX strength LOW altitudes

GAS temperature at HIGH altitudes

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12
Q

Sun crankshaft converted into?

A

Torque Reading

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13
Q

PISTON tachometer is what type of RPM?

A

DIRECT rpm

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14
Q

TURBINE tachometer is what type of RPM?

A

% RPM

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15
Q

What does the red line between the 2 parts of a green gauge mean?

A

PROHIBITED do not leave it there

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16
Q

4 types of Tachometers?

A

Mechanical
Magnetic
Electrical
Electronic

17
Q

This type of tachometer is used on early aircraft, has a set of flyweights driven by flexible drive shafts from the engine

A

Mechanical Tachometer

18
Q

This type of tachometer has a flexible driveshaft connected to a permanent magnet

A

Magnetic Tachometer

19
Q

What is in a Electrical Tachometer?

A

Synchronous Motors

Drag Cup

20
Q

In a 3 phase tachometer generator, what is important?

A

Frequency

21
Q

How does an Electronic Tachometer work?

A

Measures PULSES by magnetic induction

22
Q

Which instrument indicates the relative speed of the slave engine to the master?

A

SYNCHROSCOPE

23
Q

Which controls the direction?

A

Current from the faster engine

Aircraft Instruments Test 2 Review (19 decks)

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