Powerplant Instruments Quiz

An indication of unregulated power changes that result in continual drift of manifold pressure indication on a turbo-supercharged aircraft engine is known as

• Overshoot

• Waste gate fluctuation

• Bootstrapping

The fuel-flow indication system used with many fuel-injected opposed engine airplanes utilizes a measure of

• Fuel pressure

• Fuel flow volume

• Fuel flow mass

Instruments that provide readings of low or negative pressure, such as manifold pressure gauges, are usually what type?

• Bourdon tube

• Vane with calibrated spring

• Diaphragm or bellows

Which of the following instrument conditions is acceptable and does not require immediate correction?

• Case paint chipped

• Instrument glass fogged

• Mounting screws loose

A red triangle, dot, or diamond mark on an engine instrument face or glass indicates

• The maximum limit for high transients such as starting.

• The maximum operating limit of all g normal operations.

• A restricted operating range.

Motor-driven impeller and turbine fuel flow transmitters are designed to transmit data

• By fuel pressure

• Using aircraft electrical system power

• Mechanically

The fuel-flow indication data sent from motor-driven impeller and turbine, and motor less type fuel flow transmitters is a measure of

• Engine burner pressure drop

• Fuel volume-flow

• Fuel mass-flow

Engine pressure ratio is the total pressure ratio between the

• Aft end of the compressor and the aft end of the turbine.

• Front of the compressor and the rear of the turbine.

• Front of the engine inlet and the aft end of the compressor.

Engine oil temperature gauges indicate the temperature of the oil

• Entering the oil cooler

• Entering the engine

• In the oil storage tank

The indication on a thermocouple-type cylinder head temperature indicator is produced by

• A current generated by the temperature difference between dissimilar metal hot and cold junctions.

• A difference in the voltage between two dissimilar metals.

• Resistance changes in two dissimilar metals.