Fuel System

Question 1

1. The correct statement is:

Answer 1

D. All of the above.

A. The FUEL BOOST pump switches do not have to be on for engine start.

B. With the FUEL BOOST pump switches OFF, the respective boost pump does not operate.

C. The fuel boost pump automatically energizes anytime the FUEL BOOST switches are in NORM and the START button is depressed, FUEL TRANSFER is selected, or low fuel pressure is sensed in the engine supply line (throt-tle at IDLE or above).

Question 2

2. After engine start, the fuel boost pump is deenergized by:

Answer 2

B. Start circuit termination

Question 3

3. If the L or R FUEL LOW LEVEL annunciator illuminates:

Answer 3

C. The pilot should activate the appropriate fuel boost pump.

Question 4

4. If the white L or R FUEL BOOST ON annun-ciator illuminates without any action by the crew (engine operating normally), the probable cause is:

Answer 4

C. The low-pressure sensing switch has energized the boost pump.

Question 5

5. To verify that fuel transfer is in fact occur-ring, it is necessary to:

Answer 5

A. Monitor the fuel quantity indicators for appropriate quantity changes.

Question 6

6. When fuel transfer is selected by positioning the FUEL TRANSFER switch to L TANK and the white FUEL TRANSFER annuncia-tor illuminates:

Answer 6

A. The transfer valve is energized open

Question 7

7. Operation of the primary ejector pump is directly dependent upon:

Answer 7

B. High-pressure fuel from the engine-driven fuel pump (motive flow)

Question 8

8. If the engine-driven fuel pump fails:

Answer 8

A. The engine flames out.

Question 9

9. If the R TANK or L TANK FUEL TRANSFER has been selected and normal DC electrical power is lost (BATT switch in EMER with a dual generator failure):

Answer 9

B. The transfer valve fails closed.

Question 10

10. The maximum normal asymmetric fuel differential is:

Answer 10

D. 200 pounds