Fuel001

If an aircraft has a gravity feed fuel system where fuel is supplied to the engine from more than one tank at the same time, which of the following statements is true?

• The fuel outlet ports of each tank must have the same cross-sectional areas.

• The tank airspaces must be interconnected.

• There must be an “AUX” position on the selector valve

• The fuel lines from each tank to the engine must be the same length.

If vapor lock forms in the fuel lines of an aircraft, what might happen?

• Ice crystals may form and clog the airframe fuel filter.

• Engine detonation may occur.

• Fuel supply to the engine is reduced and engine stoppage may occur.

• Inaccurate fuel quantity indications may occur.

What is the primary purpose of an aircraft’s fuel jettison system?

• Balance the fuel load.

• Reduce fire hazard

• Reduce the amount of unusable fuel.

• Reduce fuel load to prevent damage of the aircraft on landing in overweight conditions

Engine driven fuel pumps have this restriction placed on them:

• Cannot provide pressure to de-fuel the aircraft

• No pump can draw fuel from more than one tank at a time

• Will only work when selected to continuous duty when icing conditions are forecast

• Must have an automatic feature that shuts them off when they encounter air in the fuel

What is the primary purpose of the crossfeed system?

• To allow the feeding of fuel from one tanks to the other tank for defuelling.

• To provide automatic refuelling of a tank to any desired level.

• To allow for tank-to-tank fuel transfer in flight.

• To allow the feeding of any engine from any tank.

Capacitance type fuel indicating system:

• Are not preferred as it requires electricity to be in fuel tanks

• Are best suited for large tanks due to several units being placed in the fuel tanks which allow for a constant electrical capacitance to be computed for any tank angle

• Are only used when magnetic sticks are not available

• Are used with variable resistance VDC in a circuit to drive a ratiometer-type indicator

The contacts of a low fuel pressure warning switch close and a warning light is turned on when:

• A measured quantity of fuel has passed through the switch.

• The fuel filter goes into bypass.

• The fuel flow stops.

• The fuel pressure drops below specified limits.

Fuel system components must be bonded and grounded in order to

• drain off static charges.

• provide power to the fueling truck/bowser.

• retard galvanic corrosion

• prevent stray currents.

What are the respective colour codes for the following grades of AVGAS: 80/87, 100LL and 100/130?

• Blue, green and red.

• Red, green and blue.

• Green, red and blue.

• Red, blue and green.

What primary purpose does the Collector Tank serve?

• Collects all liquids in fuel tanks to make it easier to remove water and contaminants

• Provides a central spot for fuel transfer to be initiated from

• Prevents engine fuel starvation due to sloshing

• Feeds the fuel vent system