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Dash 8 Q400 2 > Fuel System > Flashcards

Flashcards in Fuel System Deck (24)
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1
Q

Fuel System Description

Number of integral fuel tanks designated as___

A

2, No.1 and No.2

2
Q

Fuel System Description

Each wing tank is divided into___ sections: Name them

A

3, Surge bay, Main tank and Collector bay

3
Q

Fuel System Description

This Tank supplies fuel to the LEFT engine AND the APU

A

Left tank

4
Q

Fuel System Description

This tank supplies fuel to the RIGHT engine

A

Right tank

5
Q

Fuel System Description

Only this type of transfer is possible and is there engine x-feed capability

A

tank to tank, there is NO engine crossfeed capability

6
Q

Tanks - Surge Bay

Used for

A

main tank venting and fuel recovery which allows for positive pressure in the fuel tanks in flight

7
Q

Tanks - Surge Bay

What controls the pressure between the related surge bay and main tank?

A

Two outboard float vent valves and one inboard vent line control the pressure between the related surge bay and main tank

8
Q

Tanks - Surge Bay

How is each surge bay vented?

A

Each surge bay is vented through two internal standpipes connected to 2 separate NACA vents on the bottom of the wings

  • 1 NACA vent is used for: “Positive Pressure”
  • 1 NACA vent is used for :“Fuel Overflow”
9
Q

Tanks - Surge Bay

How is surge bay fuel used?

A

Fuel that flows into the surge bay in flight is siphoned back into the main tank as fuel is used and as pressure in the main tank decreases

10
Q

Main Tanks

Primary purpose is…

A

Primary purpose of the main tank is to store the majority of the fuel and continuously feed it to the collector bay

11
Q

Collector Bay

Provides…

A

provides a steady supply of fuel to the engine regardless of aircraft attitude

12
Q

Collector Bay

What kind of pump does each contain?

A

Each collector bay contains a “Primary Ejector Pump”

13
Q

Collector Bay

What serves as a back up source of boost fuel pressure failure?

A

Two auxiliary fuel pumps, one mounted on the floor of each collector bay, serve as a backup source of fuel boost pressure (i.e. Primary ejector pump fails

14
Q

Fuel Quantity

A

11724 lbs total (5862 lbs per tank)

15
Q

How many probes in each tank detect fuel quantity?

A

9 capacitance-type fuel probes in each tank determine the total fuel quantity

16
Q

“(1) or (2) Tank Fuel Low” caution light illuminates if fuel drops below…

A

If fuel drops below 305 lbs a “(1) or (2) Tank Fuel Low” caution light illuminates

17
Q

Fuel Temperature/Indication Readings from which fuel area and located for pilot display…

A

“Ambient Temperature” of fuel in the LEFT collector bay is shown in digital format (°C) on the MFD Fuel Page, directly below the left fuel quantity gauge

18
Q

“Engine Inlet temperature” taken from where and displayed where?

A

“Engine Inlet temperature” of left and right engine fuel (independent)—after it has passed through the Fuel/Oil Heat Exchanger—is shown in digital format just below the related fuel tank quantity at the bottom of the ED

19
Q

Describe the magnastick location, quantity when full/empty, and authorized use.

A

(1) Magnastick on the underside of each tank (outboard of the nacelle)
Magnastick readings will indicate:
- Full whenever the tank is more than 700 U.S gallons
- Empty whenever the tank is less than 100 U.S gallons
- NOTE: Not to be used by flight crew, MX ONLY

20
Q

How can fuel transfer be accomplished?

A

Fuel can be transferred on the ground or in flight provided that 115-volt variable AC power is available to operate the necessary auxiliary fuel pump (donor pump)

21
Q

What kind of fuel transfer can be accomplished?

A

Only tank to tank transfer is possible and there is NO engine crossfeed capability

22
Q

What is the only way engine fuel shutoff valves can be close?

A

Only the respective “PULL FUEL/HYD OFF” T-handles in the cockpit will close the respective fuel shutoff valves

23
Q

Where is refueling and defueling accomplished and how is it powered?

A

Located in the rear underside of the #2 nacelle

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24
Q

What is unique about the “FUELING ON” Caution light?

A

“FUELING ON” Caution light (CWP) is the ONLY caution light that is not accompanied by the illumination of the “MASTER CAUTION” light (glareshield panel)