Subject H - Engine Instruments System Flashcards
1
Q
- What are the units in an engine fuel flow system?
A
Transmitter and indicator
2
Q
- Where is the fuel flow transmitter located?
A
Fuel line between the engine driven pump and the carburetor.
3
Q
- What type of readout is indicated on a fuel flow system?
A
Fuel flow in pounds per hour.
4
Q
- What exactly does a mass fuel flow transmitter measure?
A
The density mass of fuel.
5
Q
- What is the reason for monitoring the fuel flow?
A
Weather the engine is operating at the correct fuel air mixture for any given power setting.
6
Q
- What does a manifold pressure gauge indicate?
A
Absolute pressure in the intake manifold.
7
Q
- What would be the effect of a broken manifold pressure gauge line?
A
Indicate atmospheric pressure
8
Q
- What does the engine tachometer indicate?
A
Crankshaft speed (RPM)
9
Q
- What is the most likely cause of oscillating tachometer?
A
A kink in the cable.
10
Q
- What type of tachometer is used in multi-engine airplanes?
A
Alternating current tachometer generators.
11
Q
- What are turbine engine tachometers designed to indicate?
A
Percent of engine rotor (shaft) RPM
12
Q
- What is the EPR on a turbine engine?
A
Ratio between total turbine discharge pressure to total inlet pressure.
13
Q
- What is the electric Source for a cylinder head temperature gauge?
A
A thermocouple attached to the cylinder head.
14
Q
- Where is a carburetor air temperature bulb located?
A
At the air intake passage to the engine.
15
Q
- How can a turbine engine EGT be checked without operating the engine?
A
Checking resistance to thermocouples and circuits.
