Engine Instrument Systems

Question 1

1. What are the i units in an engine fuel flow system?

Answer 1

Transmitter and indicator for each engine

Question 2

2. Where is the fuel flow transmitter located?

Answer 2

Mounted in the fuel line between pump and carburetor

Question 3

3. What type of readout is indicated on a fuel flow system?

Answer 3

Pounds per hour

Question 4

4. What exactly does a mass fluke flow transmitter measure?

Answer 4

The density mass of the fuel that flows through i

Question 5

5. What is the reason for monitoring the fuel flow?

Answer 5

Fuel consumption & correct fuel- air mixture

Question 6

6. What does a manifold pressure gauge indicate?

Answer 6

Absolute pressure in intake manifold

Question 7

7. What would be the effect of a broken manifold pressure gauge line?

Answer 7

Gauge would read atmospheric pressure

Question 8

8. What does the engine tachometer indicate?

Answer 8

Crankshaft speed (RPM)

Question 9

9. What is the most likely cause of an oscillating tachometer?

Answer 9

Kink in cable

Question 10

10. What type of tachometer is used in multi engine airplane?

Answer 10

Alternating current tachometer generators

Question 11

11. What are turbine engine tachometers designed to indicate?

Answer 11

% of engine rotor (shaft) RPM

Question 12

12. What is the EPR on a turbine engine?

Answer 12

Radtio between turbine discharge pressure to total inlet pressure

Question 13

13. What is the electric source for a cylinder head temperature gauge?

Answer 13

Thermocouple attached to cylinder head

Question 14

14. Where is a carburetor air temperature bulbs located?

Answer 14

Air intake passage to engine

Question 15

15. How can a turbine engine EGT be checked without operating the engine?

Answer 15

check resistance to thermocouples & circuits

Question 16

16. What is the typical acceptable resistance of a cylinder head thermocouple cable?

Answer 16

2 - 8 ohms