fuel final 1

1- What is the purpose of an engine-driven fuel pump bypass valve?

A- To divert the excess fuel back to the main tank.

*B- To prevent a damaged or inoperative pump from blocking the fuel flow of another pump in series with it.

C-To divert the excess fuel from the pressure side of the pump to the inlet side of the pump.

2-A fuel pressure relief valve is required on

A- engine-driven diaphragm-type fuel pumps.

*B- engine-driven vane-type fuel pumps.

C-centrifugal fuel boost pumps.

3- The fuel systems of aircraft certificated in the standard classification must include which of the following?

A-An engine-driven fuel pump and at least one auxiliary pump per engine.

*B-A positive means of shutting off the fuel to all engines.

C-A reserve supply of fuel, available to the engine only after selection by the flightcrew, sufficient to operate the engines at least 30 minutes at METO power.

4- Which of the following turbine fuel filters has the greatest filtering action of any present day filter type?

*A- Micron filter.

1. Plain screen mesh filter.

2. Wafer screen filter.