ADVANCE SYSTEM

Concerning the advantages of an aircraft generator or alternator, select the true statement.

• A generator always provides more electrical current than an alternator

• An alternator provides more electrical power at lower engine RPM than a generator.

• A generator charges the battery during low engine RPM; therefore, the battery has less Chance to become fully discharged, as often occurs with an alternator.

What type of oxygen system is most commonly found in general aviation aircraft ?

• Demand.

• Continuous flow.

• Pressure demand.

What type of oxygen should be used to replenish an aircraft oxygen system ?

• Medical.

• Aviation.

• Industrial.

What is the purpose of the rebreather bag on an oxygen mask in a continuous flow system.?

• Helps to conserve oxygen.

• Allows excess oxygen to be expelled during use.

• Controls amount of oxygen that each individual breathes through the mask.

If the grade of fuel used in an aircraft engine is lower than that specified, it may cause

• detonation.

• lower cylinder head temperatures.

• a decrease in power which could overstress internal engine components

Which is a correct function of a fuel injection system component?

• Fuel discharge nozzle-provides fuel under pressure to the fuel/air control unit after engine start.

• Fuel manifold valve-mixes air with the fuel received from the fuel/air control unit manifold valve and injects it into the cylinder intake port.

• Fuel/air control unit-meters fuel based on the mixture control setting and sends it to the fuel manifold valve at a rate controlled by the throttle.

  áwture control.

The best power mixture is obtained when the EGT is somewhat richer than its peak value, and is the condition that allows the engine to develop its maximum power for a given throttle setting.

• True

• False

Starting a fuel-injected engine within a half hour after it has been shut down can be more difficult because residual engine heat causes the sparkplugs to become wet.

• True

• False

When refueling aircraft, which precaution would be adequate for eliminating the potential hazard of static electricity.?

• Ensure that battery and ignition switches are off.

• Connect a ground wire from the fuel truck to ground.

• Connect a ground wire between the aircraft, fuel truck, fuel nozzle, and ground.

Which is a function of the engine-driven fuel pump?

• Provides fuel under pressure to the fuel/air control unit after engine start.

• Provides fuel under pressure directly to the fuel manifold valve for distribution to the cylinders.

• Provides fuel under pressure to the fuel/air control unit for engine starting and to purge the system of vapors.