Which of the following conditions is usually not acceptable to any extent in turbine blades?

Failure of an engine to cease firing after turning the magneto switch off is an indication of

When in operation, the speed of an APU

A hissing sound from the exhaust stacks when the propeller is being pulled through manually indicates

As the pressure is applied during a reciprocating engine compression check using a differential pressure tester, what would a movement of the propeller in the direction of engine rotation indicate?

On an aircraft that utilizes an exhaust heat exchanger as a source of cabin heat, how should the exhaust system be inspected?

In which of the following situations will the oil cooler automatic bypass valve be open the greatest amount?

What will be the effect if the spark plugs are gapped too wide?

Upon what does the output frequency of an AC generator (alternator) depend?

A clicking sound heard at engine coast-down in a pneumatic starter incorporating a sprag clutch ratchet assembly is an indication of