Fuel

Question 1

The fuel system is designed so normal fuel feed sequencing is

Answer 1

Automatic

Question 2

What is the maximum allowable fuel imbalance between inner tanks (inflight and landing) if the heavier tank is full

Answer 2

3,300 pounds

Question 3

In flight with slats retracted, how is fuel sequenced to the engines with fuel in all tanks

Answer 3

Center tank pumps feed the engines first

Question 4

In flight with MODE SEL in AUTO and fuel in the center tank, the center tank pumps

Answer 4

Run only if slats are retracted

Question 5

When will the center tank begin to feed the engines after takeoff (if there is fuel int he center tank)

Answer 5

When the slats are retracted

Question 6

In flight, with fuel MODE SEL in MAN, and the CTR TK pumps ON, what is the effect on the center tank pumps

Answer 6

The center tank pumps run continuously until turned off with the CTR TK pump switches

Question 7

A fuel pump FAULT light indicates

Answer 7

Fuel pump low pressure

Question 8

When should a tripped wing tank fuel pump circuit breaker be reset?

Answer 8

Never

Question 9

A fuel MODE SEL FAULT light indicates

Answer 9

Center tank has more than 550 pounds of fuel AND the left or right wing tank has less than 11,000 pounds

Question 10

The crossfeed valve is normally

Answer 10

closed

Question 11

What do double dashes over the last two digits of the fuel on board (FOB) indication mean

Answer 11

The fuel quantity indication is still operative, but inaccurate

Question 12

Which of the following would cause an amber half box to appear around the E/WD FOB display when the fuel quantity is not fully usable?

Answer 12

Transfer valve failure

Question 13

Engines can be gravity fed

Answer 13

From the wing tanks only

Question 14

If a fuel imbalance greater than 3300 pounds is detected, indications of the wing inner and outer tanks with the highest fuel level

Answer 14

Pulse green

Question 15

A low level fuel warning may be triggered during steep descents, accelerations or decelerations due to

Answer 15

The transfer valves opening with more than 1650 pounds of fuel in each inner tank

Question 16

When either inner wing compartment fuel quantity reaches 1650 pounds

Answer 16

At least one transfer valve in each wing opens

Question 17

The fuel recirculation system uses fuel supplied to each engine for cooling the

Answer 17

IDG oil.

Question 18

What happens when the recirculation fuel has filled a wing tank and the center tanks are supplying fuel to the engines

Answer 18

The center tank pump shuts off until 1100 pounds of fuel has been burned out of the wing tank

Question 19

With the fuel MODE SEL switch in auto, both center tank pumps run(if there is fuel in the tank) for_____minutes after each engine reaches idle to verify operation

Answer 19

2

Question 20

Each vent surge and inner wing tank is equipped with an over pressure burst disk that

Answer 20

Ruptures if the internal and external pressure differential exceeds a predetermined value

Question 21

IDG heat exchanger return fuel is routed to the fuel return valve and then to the

Answer 21

Wing tank outer compartment