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

Which of the following indicates that a combustion chamber of a jet engine is not operating properly?

Aircraft copper electrical wire is coated with tin, silver, or nickel in order to

Which of the following is a function of the fuel/oil heat exchanger on a turbojet engine?