AMT Powerplant Quiz
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| 1. Inspect, check, service and repair reciprocating engines and engine installations (8065) |
| At what speed must a crankshaft turn if each cylinder of a four stroke cycle engine is to be fired 200 times a minute? |
| A - 800 RPM. |
| B - 400 RPM. |
| C - 1,600 RPM. |
| |
| 2. Inspect, check, service, troubleshoot and repair reciprocating and turbine engine fuel metering syst (8730) |
| The function of the altitude compensating, or aneroid valve used with the Teledyne-Continental fuel injection system on many turbocharged engines is to |
| A - prevent an overly rich mixture during sudden acceleration. |
| B - provide a means of enriching the mixture during sudden acceleration. |
| C - prevent detonation at high altitudes. |
| |
| 3. Install troubleshoot and remove reciprocating engines (8085) |
| An increase in manifold pressure with a constant RPM will cause the bearing load in an engine to |
| A - decrease. |
| B - increase. |
| C - remain relatively constant. |
| |
| 4. Inspect, check, service and repair reciprocating engines and engine installations (8079) |
| What is the best indication of worn valve guides? |
| A - Low compression. |
| B - High oil consumption. |
| C - Low oil pressure. |
| |
| 5. Install, check and service engine electrical wiring, controls, switches, indicators and protective d (8405) |
| What is the smallest terminal stud allowed for aircraft electrical power systems? |
| A - No. 8. |
| B - No. 10. |
| C - No. 6. |
| |
| 6. Inspect, check, service troubleshoot and repair engine fuel systems (8752) |
| A fuel strainer or filter must be located between the |
| A - tank outlet and the fuel metering device. |
| B - boost pump and tank outlet. |
| C - boost pump and engine driven fuel pump. |
| |
| 7. Repair engine lubrication system components (8450) |
| Possible failure related ferrous metal particles in turbine engine oil cause an (electrical) indicating type magnetic chip detector to indicate their presence by |
| A - bridging the gap between the detector center (positive) electrode and the ground electrode. |
| B - disturbing the magnetic lines of flux around the detector tip. |
| C - generating a small electric current that is caused by the particles being in contact with the dissimilar metal of the detector tip. |
| |
| 8. Install, check and service engine electrical wiring, controls, switches, indicators and protective d (8400) |
| (1) Most modern aircraft use circuit breakers rather than fuses to protect their electrical circuits. (2) Federal Aviation Regulations Part 23 requires that all electrical circuits incorporate some form of circuit protective device. Regarding the above statements, |
| A - only No. 1 is true. |
| B - only No. 2 is true. |
| C - both No. 1 and No. 2 are true. |
| |
| 9. Install troubleshoot and remove reciprocating engines (8101) |
| To reduce the power output of an engine equipped with a constant speed propeller and operating near maximum BMEP, the |
| A - RPM is reduced with the propeller control before the manifold pressure is reduced with the throttle control. |
| B - manifold pressure is reduced with the throttle control before the RPM is reduced with the propeller control. |
| C - manifold pressure is reduced with the propeller control before the RPM is reduced with the throttle control. |
| |
| 10. Inspect, service and troubleshoot turbine engine pneumatic starting systems (8626) |
| A clicking sound heard at engine coast-down in a pneumatic starter incorporating a sprag clutch ratchet assembly is an indication of |
| A - the pawls re-contacting and riding on the ratchet gear. |
| B - one or more broken pawl springs. |
| C - gear tooth and/or pawl damage. |
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