AMT Powerplant Quiz
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| 1. Inspect, check, service and repair fixed pitch constant speed and feathering propellers and propelle (8923) |
| Propeller blade stations are measured from the |
| A - index mark on the blade shank. |
| B - hub centerline. |
| C - blade base. |
| |
| 2. Inspect check troubleshoot service and repair engine cooling systems (8828) |
| (1) Some aircraft exhaust systems include an augmenter system to draw additional air over the engine for cooling. (2) Augmenter systems are used to create a low pressure area at the lower rear of the aircraft engine cowling. Regarding the above statements, |
| A - both No. 1 and No. 2 are true. |
| B - only No. 2 is true. |
| C - only No. 1 is true. |
| |
| 3. Inspect, check, service and repair fixed pitch constant speed and feathering propellers and propelle (8912) |
| How is a propeller controlled in a large aircraft with a turboprop installation? |
| A - Independently of the engine. |
| B - By the engine power lever. |
| C - By varying the engine RPM except for feathering and reversing. |
| |
| 4. Inspect, check, service and repair carburetor air intake and induction manifolds (8812) |
| The action of a carburetor airscoop is to supply air to the carburetor, but it may also |
| A - cool the engine. |
| B - increase the pressure of the incoming air by ram effect. |
| C - keep fuel lines cool and prevent vapor lock. |
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| 5. Inspect check troubleshoot service and repair engine cooling systems (8826) |
| The component(s) in a turbine engine that operate(s) at the highest temperatures is/are the |
| A - first stage turbine nozzle guide vanes. |
| B - turbine disks. |
| C - exhaust cone. |
| |
| 6. Repair engine electrical system components (8369) |
| (1) Alternators are rated in volt amps, which is a measure of the apparent power being produced by the generator. (2) Alternating current has the advantage over direct current in that its voltage and current can easily be stepped up or down. 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. |
| |
| 7. Overhaul turbine engine (8114) |
| What turbine engine section provides for proper mixing of the fuel and air? |
| A - Compressor section. |
| B - Diffuser section. |
| C - Combustion section. |
| |
| 8. Install, check and service engine electrical wiring, controls, switches, indicators and protective d (8402) |
| Electrical circuit protection devices are installed primarily to protect the |
| A - switches. |
| B - wiring. |
| C - units. |
| |
| 9. Inspect, service, troubleshoot and repair turbine engine electrical starting systems (8615) |
| (Refer to Figure 5
.) With power applied to the bus bar, what switch changes will allow the ignition exciters test switch to function? |
| A - Engine master switch, battery switch, and power lever switch. |
| B - Engine master switch, start switch, and test switch. |
| C - Engine master switch and power lever switch. |
| |
| 10. Inspect and repair a radial engine (8004) |
| What is the principal advantage of using propeller reduction gears? |
| A - To enable the propeller RPM to be increased without an accompanying increase in engine RPM. |
| B - To enable the engine RPM to be increased with an accompanying increase in power and allow the propeller to remain at a lower, more efficient RPM. |
| C - To enable the engine RPM to be increased with an accompanying increase in propeller RPM. |
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