Boeing 737 FUEL System MCQ

1

The minimum fuel temperature prior to take-off and in-flight for the 737NG/MAX is

- 43Â°C, or 3Â°C above the fuel freezing point temperature, whichever is higher.

- 45Â°C, or 3Â°C above the fuel freezing point temperature, whichever is higher.

- 49Â°C, or 3Â°C above the fuel freezing point temperature, whichever is higher.

2

A shut-off system is used during refuelling to

Prevent refuelling pressures in excess of 50 psi.

Automatically close the Manual Defuelling Valve when the wing tanks are full.

Automatically close the fuelling valve in each fuel tank when the tank is full.

3

737CL Fuel Quantity indicators will display

Blank if a malfunction occurs.

An 88888 reading if a malfunction occurs.

An ERR symbol if a malfunction occurs.

4

The Fuel Temperature Indicator reads the temperature of the fuel in

The No. 1 tank.

The No. 2 tank.

The Centre tank.

5

The manual De-fuelling valve is located

Outboard of the No. 2 engine.

Inboard of the No. 2 engine.

Outboard of the No. 1 engine.

6

The Fuelling Valve Position Lights on the External Fueling Panel illuminate (blue) when

The respective fuelling valve is OPEN.

The respective fuelling valve is OPEN and fuel is being transferred into the tank.

The respective fuelling valve is in transit.

7

Fuel for the APU is

Is recorded on the fuel flowmeters.

Not heated.

Approx 164 kg/hr with electrics & bleeds at sea level, decreasing to 17 kg/hr at high altitude

8

The Crossfeed valve when OPEN

Allows fuel transfer from any tank to either engine or APU.

Closes the Bypass valve in each wing tank.

Allows transfer of fuel between wing tanks only.

9

With failure of all generators, the center tank fuel

Can be used by switching off all wing tank pumps and opening the crossfeed valve.

Cannot be used.

Will be fed to the main tanks by the centre tank scavenge jet pump.

10

The maximum allowable lateral fuel imbalance between No. 1 and No. 2 tanks is

746Kgs/1500lbs for all stages of flight.

453Kgs/1000lbs for all stages of flight.

453Kgs/1000lbs for takeoff only.

11

Should the indicated fuel quantity in any main tank be 454 Kgs or less

Switch on all main tank fuel pumps and open the crossfeed valve.

Switch off the associated fuel pump if both pump LOW

Switch on all main tank fuel pumps and close the crossfeed valve.

12

The Centre Tank Fuelling Valve Position light on the External Fuelling Panel is

Red and is extinguished when the centre tank fuelling valve is closed.

Blue and is illuminated when the centre tank fuelling valve is closed.

Blue and is extinguished when the centre tank fuelling valve is closed.

13

The External Fuelling Panel is located

At the Right wing leading edge.

On the opposite wing to the De-fuelling panel.

At the Left wing leading edge.

14

Each fuel tank contains

2 DC powered fuel pumps.

1 AC powered fuel pumps which is fuel cooled and lubricated, and 1 DC fuel pump.

2 AC powered fuel pumps which are fuel cooled and lubricated.

15

Which valve connects the fuel (engine) manifold to the fuelling manifold

The Crossfeed valve.

The Manual Defuelling valve.

The Fuelling valve.

16

For a FUEL annunciator and the MASTER CAUTION lights to illuminate, two fuel LOW PRESSURE lights must be illuminated for the

AFT pump in each wing tank.

FWD pump in each wing tank.

Same tank.

17

The fuel quantity indicators require

Switched Hot battery Bus power.

Standby AC power.

Standby DC power.

18

If the centre tank is scheduled to contain more than 453 Kgs then

Main tanks 1 & 2 must be filled first.

Load the center tank first.

All tanks may be filled together.

19

The Engine Fuel Shut Off valves

Are Hot Battery Bus powered, may be closed by the engine start lever or respective engin fire switch

Are AC operated to OPEN, and mechanically closed by the engine start lever or fire switch.

Are cable operated to CLOSE or OPEN.

20

A 737CL digital fuel quantity indicator has an accuracy of

+/- 3% of full scale reading.

+/- 2% of full scale reading.

+/- 2.5% of full scale reading.