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P ATG Electrical

The magneto is driven:

Electrically;Mechanically;Pneumatically.

Theory Low B 1

The purpose of the alternator and generator is to:

Provide electrical current to start the engine;Provide electrical current to operate the magnetos;Provide electrical current to recharge the battery.

Theory Low C 1

Why is it important to check that the earthing wire for the magnetos is not broken:

To ensure that the magnetos can be switched on by electrical current;

To ensure that the magnetos will stop producing a spark when isolated;To ensure that you can isolate the electrical system in case of electrical fire.

App Low B 1An alternator is:

a BatteryAn AC generatorCharged continously by the battery

Theory Low B 1

Whilst flying in the GF area the pilot notices that the left /zero ammeter is indicating zero. What could be theproblem?

Failed battery;The alternator is no longer charging the battery;There is no spark being supplied by the magnetos

Theory Medium B 1

The pilot notices that the turn co-ordinator, oil temperature gauge and fuel quantity gauge are not operating,what could be the problem.

Vacuum pump failure;Pitot tube blocked;Electrical failure.Theory Medium C 1

As well as the additional safety factor, dual ignition systems also provide:

Improved engine performance;Better heat control of the engine;Easier starting.

Theory Medium A 1

A pilot inadvertently switches the master switch off in flight. The following will be affected:

The engine will stop;

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The ASI and Altimeter will mis-read;Most electrical equipment would be inoperative. ie: Radios, Oil temp and fuel quantity gauges.

Theory Medium C 1

Aircraft magnetos obtain electrical energy from:

BatteriesAlternatorsself-contained magnets

Theory Medium C 1

The probable reason an engine continues to run after the ignition switch has been turned off is:

faulty magneto timinga broken magneto ground wirea cracked intake manifold

Theory Medium B 1

A Fuse / Circuit breaker:

Can be replaced/reset on the ground onlyIs self resetting after the fault has been rectifiedMay be replaced/reset manually after the fault has been rectified

Theory Medium C 1

Warning of an electrical overload would be given by:

Low ampsHigh ampsNo amp indication

Theory Medium B 1

If the switch of a magneto becomes disconnected in flight:

the affected magneto will automatically be isolated.the alternative magneto will maintain ignition.the affected magneto will continue to provide a spark

Theory High C 1

What actions must a pilot take in order to resolve a suspected alternator problem?

Switch all electrical components off.If you can reset the alternator; reset it, otherwise broadcast intentions then switch off unnecessary electricsand return to the field.Broadcast intentions and return to the field using as little power as possible so the alternator cansupply a charge to the aircraft systems.

App High B 1

Accelerating the magneto momentarily to generate high voltage at very low RPM is the function of the:

Left Magneto;

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Right Magneto;Impulse Coupling.

Theory High C 1

Fuses are fitted:

In parallel with the loadIn series with the loadIn parallel with the circuit breakers

Theory High B 1