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Maint/Operation O&P
| Question | Answer |
|---|---|
| What is the probable cause of hydraulic lock and how is it remedied? | oil or fuel getting into the lower cylinders of a radial engine causing the piston to try to compress incompressible liquids |
| What checks are necessary to verify proper operation of a recip engine? | ground check, proper oil pressure, correct rpm |
| Explain the checks necessary to verify proper operation of propeller systems? | pitch control and pitch change mechanism |
| What is involved with the correct installation of piston rings and what results if the rings are incorrectly installed or worn? | stagger the rings IAW maintenance manual, can cause oil consumption and blow by |
| What are some inspection procedures for inspecting various engine components during overhaul? | visual inspection, structural inspection (NDT), Dimensional inspection |
| What are the procedures for recip engine maintenance as they pertain to overhauling an engine? | worn or damaged parts must be detected and replaced |
| What are some checks necessary to verify proper operation of a turbine engine? | idle speed, oil pressure, EGT, EPR |
| What are some turbine engine troubleshooting procedures? | should be performed IAW engine manufactures instructions |
| What are some turbine engine maintenance procedures? | cleaning and repairing- compressor blades, guide vanes, inducers |
| What is the possible problem with an engine that indicates high EGT for a particular EPR? | engine is out of trim |
| What are some typical parameters sought for oil pressure when starting a recip engine? | should indicate within 30 seconds of startup |
| Explain the operation of a temperature indicating system on a turbine engine. | a series of thermocouple probes around the engine section where the temp is measured and connected to a gauge in the cockpit |
| What is the operation of a turbine engine tachometer? | a percentage of rpm measured by each turbine compressor spool |
| How is an EGT system checked for proper operation? | a calibrated test analyzer |
| What is EPR and how is it instrumented on a gas turbine engine? | Engine Pressure Ratio- indication of thrust |
| What can be done to check the accuracy of a turbine engine tachometer? | by using a calibrated test analyzer |
Created by:
possumslopper2000
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