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Dash 8 Q300/200 > Engines-Propeller > Flashcards

Engines-Propeller Flashcards

1
Q

Illumination of a green alternate feather advisory light indicates what?

A

The auxiliary feathering pump is operating

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2
Q

When condition leavers are moved to Max propeller RPM is approximately what?

A

1200 NP

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3
Q

Is the engine driven hydraulic pump driven through the accessory gearbox?

A

No

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4
Q

Maximum takeoff power is limited to how many minutes?

A

Five minutes

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5
Q

For the power levers to move below the flight idle detent what must occur?

A

The flight idle gate release triggers must be raised

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6
Q

The high-pressure compressor is what?

A

Single stage centrifugal compressor

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7
Q

The Dash8 200 is fitted with which model engine?

A

PW123C

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8
Q

The power turbine consists of how many stages?

A

Two

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9
Q

After an engine failure, the power up trim signal is removed when?

A

The auto feather system is the activated

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10
Q

Normal take off power NTOP Dash8 300 engines each produce how much hp?

A

2140 SHP

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11
Q

Is the engine driven fuel pump mounted on the propeller reduction gearbox?

A

No

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12
Q

The accessory gearbox is driven by the what?

A

High-pressure compressor

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13
Q

To move the condition leavers from start and feather to fuel off you must do what?

A

Left the condition lever.

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14
Q

Automatic up trim power hp?

A

2380 hp

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15
Q

What does the accessory gearbox run?

A

The engine driven fuel pump the oil pump the DC starter/generator.

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16
Q

What’s driven by the propeller reduction gearbox?

A

A propeller control unit PCU,A PCU oil pump, a propeller over speed governor and an engine driven hydraulic pump.

17
Q

What is Beta range?

A

Beta range is where the pilot is directly controlling the propeller blade angle.

18
Q

Engine fuel Scheduling is controlled by what?

A

Mechanical fuel control unit MFC, and an electronic control unit ECU

19
Q

In manual mode fuel control is relative to what?

A

Power lever angle PLA and condition lever angle CLA.

20
Q

When the ECU mode is set on the ECU received input from what?

A

Potentiometer is sensing power lever angle and condition lever angle

21
Q

During normal flight operations with the power levers forward of the flight beta range, propeller blade angle is governed by what?

A

Governed by the propeller control unit which regulates propeller speed in response to the condition lever setting

22
Q

During normal flight in the forward flight range as the power levers are retarded, the propeller control unit does what?

A

The PCU reduces blade angle as it attempts to maintain the commanded propeller rpm, referred to as NP

23
Q

In the Disc range, propeller blade angle varies between what?

A

+20° at flight Idle to +1.5° at Disc detent

24
Q

What are the propeller blade angles in the reverse Beta range?

A

Blade angle changes from +1.5° at Disc to -11° at Max reverse stop

25
Q

When the condition leavers are in the Min position propeller rpm is Governed at approximately what?

A

900 NP

26
Q

Why when the engine ECU mode selector switch Is set to manual do You get a slight increase in power?

A

Because during normal operations the Eletronic control unit is modifying the fuel input to the mechanical fuel control unit in order to optimise fuel scheduling when the engine ECU mode is in manual, unmetered fuel is provided to the applicable engine.

27
Q

What’s normal maximum torque?

A

90%

28
Q

What’s the normal operating band for torque ?

A

0–96%

29
Q

What’s maximum uptrim torque?

A

105.6%

30
Q

What’s the caution up trim range?

A

96% – 105.6%

31
Q

What’s the green arc for propeller RPM?

A

Normal operating band, 780–1200 RPM

32
Q

What’s the caution range for rpm?

A

500 to 780 rpm

33
Q

Normal take off power for the Q200? In horsepower?

A

1950 SHP

34
Q

Max take off power in hp Q200?

A

2150 SHP

Dash 8 Q300/200 (74 decks)

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