Fuel System Flashcards

1
Q

The APU is suppled fuel from the ____ tank only.

A

No. 1 Tank (Left)

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2
Q

Main tanks are built to withstand ballistic hits from the ____ & ____.

A

Bottom & SIde

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3
Q

____ valves provide an automatic seal to prevent fuel leaks reduce possibility of fire during a helicopter crash or malfunction.

A

Breakaway valves

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4
Q

Submerged fuel boost pump output pressure is approximately ___ - ___ PSI.

A

25 - 27

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5
Q

When the No. 1 or No. 2 FUEL LOW caution light illuminates approximately ___lbs of fuel remain in the tank.

A

172lbs

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6
Q

Fuel in the AUX tanks can ONLY be transferred to ____.

A

The Main Tanks.

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7
Q

The ____ valves automatically stop refueling when the tank is full to prevent over-pressurization.

A

High Level Shutoff Valves

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8
Q

An ____ sensor detects fuel being vented overboard and illuminates an ____ light on the Fuel Management Panel.

A

Overflow Sensor/OVERFLOW caution light

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9
Q

What happens if the transfer pumps run dry?

A

If the transfer pumps run dry, they will fail

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10
Q

The Fuel Prime Boost Pump is located on top of which main tank?

A

No. 1 Main Tank

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11
Q

The fuel dump system dumps fuel at a rate of ___ Pounds Per Minute

A

800 PPM

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12
Q

Fuel dumping stops when the dump switch is placed in OFF or when the main tanks decrease to ___lbs.

A

172lbs

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13
Q

The Fuel Quantity Indicator displays fuel quantity in YELLOW strips at ___lbs and below.

A

200lbs

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14
Q

The ____ system indicates the total amount of fuel in all tanks.

A

Enhanced Fuel Quantity System (EFQI)

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15
Q

The Engine Fuel Selector Levers shutoff fuel flow to the engines at the ____.

A

Fuel Selector Valve

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16
Q

AUX FUEL or NO FUEL XFER caution light illuminates when either main fuel tank quantity drops below ____.

A

550lbs +/- 55

17
Q

The Fuel Management Panel is located on the ____ console.

A

AFT

18
Q

The Prime Boost Pump primes all fuel lines IF prime is lost and also acts as the ___ boost pump.

A

APU boost pump

19
Q

Power to operate the the fuel boost pumps is provided from the _____, respectively.

A

No. 1 and No. 2 AC Primary Buses, respectively.

20
Q

What are the three Fuel Selector Levers positions?

A

OFF - control valves closed

DIR - selector valves open providing fuel to each engine from it’s individual fuel tank

XFD - Connects engine to the crossfeed system

21
Q

The fuel filter is located on the forward left side of the ____.

A

Engine accessory gear box.

22
Q

An impending bypass warning is incorporated on the filter housing in the form of a button that pops at ____ psid.

A

6 psid

23
Q

Power to operate the Prime Boost System is from the ____ bus through a circuit breaker marker FUEL PRIME BOOST.

A

Battery Bus

24
Q

CAUTION: Excessive helicopter maneuvering with the refueling probe extended could result in ________. Also, flying with the refueling probe extended causes excessive wear on the internal parts.

A

inadvertent main rotor blade contact with the refueling probe.

25
Q

CAUTION: Dry running the transfer pumps in ____ may cause transfer pump failure.

A

Manual Mode.