Powerplant (Auxiliary power unit)

10問 • 1年前

Marga

通報

問題一覧

Fuel is normally supplied to an APU form

The airplane’s main fuel system

Fuel scheduling during APU start under varying pneumatic bleed and electrical loads is maintained

Automatically by the APU fuel control system.

Usually, most of the load placed on an APU occurs when

The bleed air valve is opened.

When in operation, the speed of an APU

Remains at or near rated speed regardless of the load condition.

Frequently, an aircraft’s auxiliary power unit (APU) generator

Is identical to the engine-driven generators.

An APU is usually rotated during start by

An electric starter

Generally, when maximum APU shaft output power is being used in conjunction with pneumatic power

Pneumatic loading will be automatically modulated to maintain a safe EGT.

When necessary, APU engine cooling before shutdown may be accomplished by

Closing the bleed air valve.

The function of an APU air inlet plenum is to

Stabilize the pressure of the air before it enters the compressor.

On APU’s equipped with a free turbine and load compressor, the primary function of the load compressor is to

Provide bleed air for aircraft pneumatic systems.

Airlaw (PCAR, AFCAR, Airframe check & Publications) (2)

Marga · 47問 · 1年前

Airlaw (PCAR, AFCAR, Airframe check & Publications) (2)

47問 • 1年前

Marga

Reciprocating Engines pt.1 ⭐️

Marga · 50問 · 1年前

Reciprocating Engines pt.1 ⭐️

50問 • 1年前

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Reciprocating Engines pt.2 ⭐️

Marga · 57問 · 1年前

Reciprocating Engines pt.2 ⭐️

57問 • 1年前

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Induction and Airflow System

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Induction and Airflow System

42問 • 1年前

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Engine Instrument System

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Engine Instrument System

Fuel Metering System

Fuel Metering System

Ignition starting system pt. 1 ⭐️

Marga · 50問 · 1年前

Ignition starting system pt. 1 ⭐️

50問 • 1年前

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Ignition starting system pt. 2 ⭐️

Marga · 78問 · 1年前

Ignition starting system pt. 2 ⭐️

78問 • 1年前

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Turbine Engines pt. 1 ⭐️

Marga · 60問 · 1年前

Turbine Engines pt. 1 ⭐️

60問 • 1年前

Marga

Turbine Engines pt. 2 ⭐️

Marga · 59問 · 1年前

Turbine Engines pt. 2 ⭐️

59問 • 1年前

Marga

Powerplant (Propellers) pt. 1 ⭐️

Marga · 60問 · 1年前

Powerplant (Propellers) pt. 1 ⭐️

60問 • 1年前

Marga

Powerplant (Propellers) pt. 2 ⭐️

Marga · 57問 · 1年前

Powerplant (Propellers) pt. 2 ⭐️

57問 • 1年前

Marga

Engine Lubrication ⭐️

Marga · 93問 · 1年前

Engine Lubrication ⭐️

93問 • 1年前

Marga

Assembly and Rigging ⭐️

Marga · 78問 · 1年前

Assembly and Rigging ⭐️

78問 • 1年前

Marga

問題一覧

Fuel is normally supplied to an APU form

The airplane’s main fuel system

Fuel scheduling during APU start under varying pneumatic bleed and electrical loads is maintained

Automatically by the APU fuel control system.

Usually, most of the load placed on an APU occurs when

The bleed air valve is opened.

When in operation, the speed of an APU

Remains at or near rated speed regardless of the load condition.

Frequently, an aircraft’s auxiliary power unit (APU) generator

Is identical to the engine-driven generators.

An APU is usually rotated during start by

An electric starter

Generally, when maximum APU shaft output power is being used in conjunction with pneumatic power

Pneumatic loading will be automatically modulated to maintain a safe EGT.

When necessary, APU engine cooling before shutdown may be accomplished by

Closing the bleed air valve.

The function of an APU air inlet plenum is to

Stabilize the pressure of the air before it enters the compressor.

On APU’s equipped with a free turbine and load compressor, the primary function of the load compressor is to

Provide bleed air for aircraft pneumatic systems.