Exam (elaborations)

ASA Powerplant Oral Exam Combined Set Questions With Revised Correct Detailed Answers |ALREADY GRADED A+ PASS >> BRAND NEW VERSION!

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ASA POWERPLANT ORALS

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ASA POWERPLANT ORALS

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Uploaded on October 20, 2024
Number of pages 71
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Type Exam (elaborations)
Contains Questions & answers

asa powerplant oral
asa powerplant
powerplant oral
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engines
cars
fuel pressure
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asa powerplant oral exam combined set questions

Institution ASA POWERPLANT ORALS
Course ASA POWERPLANT ORALS

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ASA Powerplant Oral Exam
Combined Set Questions
With Revised
Correct Detailed Answers
|ALREADY GRADED A+ PASS
>> BRAND NEW VERSION!

1. What is a floating cam ring on a large radial engine? - ANSWER It is a
cam ring that rides on a shelf-type bearing with a large amount of clearance
between the bearing and the ring. When adjusting the valves on an engine
with a floating cam ring, the pressure of the valve springs on the opposite
side of the engine must be removed so the cam ring will be tight against the
bearing for the valves being adjusted.

2. Why is valve clearance adjusted on radial engines, but not on most
horizontally opposed engines? - ANSWER Most horizontally opposed
engines have hydraulic valve lifters that keep all of the clearance out of the
valve train. Radial engines have solid lifters.

3. Why are both the hot and cold valve clearances given for most radial
engines? - ANSWER The hot clearance is given for valve timing
purposes. The timing is adjusted with the valves in cylinder number one, set
with the hot clearance. When the timing is set, all of the valves are adjusted
to their cold clearance.

,4. What must be inspected to determine the airworthiness of an engine
installation? - ANSWER The propeller, lubrication system, ignition
system, fuel metering system, cooling system, and the exhaust system.

5. What checks should be made to determine the proper operation of a
reciprocating engine installation? - ANSWER Idle RPM and mixture,
static RPM, propeller pitch change operation, magneto check, ignition
switch safety check, and carburetor heat check.

6. Where can you find the correct grade of fuel and amount of engine
lubricating oil for an aircraft engine? - ANSWER In the Type Certificate
Data Sheets (TCDS) for the aircraft.

7. What are the basic steps in troubleshooting an engine installation? -
ANSWER A. Know how the system should operate B. Observe how the
system is operating. C. Divide the system to find the trouble. D. Look for the
obvious problems first.

8. Where do you find the procedures to follow when correcting a defective
condition in an aircraft engine? - ANSWER In the engine maintenance
manual.

9. Where do you find instructions for removing an engine from an aircraft? -
ANSWER In the aircraft maintenance manual.

10. What must normally be done to a nose-wheel airplane before removing an
engine? - ANSWER The tail of the airplane must be supported.

,11. What should be done to the cylinders to protect them from rust and
corrosion when preparing the engine for long-time storage? - ANSWER
Spray a preservative oil inside the cylinders and replace the spark plugs
with desiccant plugs.

12. What should be used to cover the ends of fuel and oil lines that have been
disconnected from the engine? - ANSWER The correct plugs or caps.
Never cover the end of a line with tape.

13. What is meant by a QEC engine assembly? - ANSWER An engine that
has been prepared for a quick engine change. The engine is on its mount
and all of the accessories are installed. A minimum of time is required to
change engines. All that is needed is for the controls, wiring, and fluid lines
to be connected to the firewall.

14. What is meant by rigging the engine controls so they have some
"cushion"? - ANSWER The control on the engine component must
contact its stop before the control handle in the cockpit reaches its stop.
This causes the control handle to spring back a slight amount when it is
moved to the extent of its travel.

15. What are two ways of pre oiling an engine? - ANSWER A. before the
spark plugs are installed and after the oil tank or sump is filled, turn the
engine over with the starter until oil runs out of the fitting to which the oil
pressure gage connects. B. Use a pre oiler tank. Air pressure forces oil
through all of the passages until some of it flows from the oil pressure gage
fitting.

, 16. What is meant by a hot section inspection? - ANSWER An inspection of
the hot section of a turbine engine. The combustors, the turbine, and the
exhaust systems.

17. What is meant by on condition maintenance of a turbine engine? -
ANSWER The monitoring of the engine performance at regular intervals
and determining when maintenance is required based on certain operating
parameters specified by the engine manufacturer.

18. What checks of a turbine engine are necessary to verify preflight
condition? - ANSWER Inspection of the cowling and all air inlet areas
and attachment of the engine to the airframe. Inspection of the inlet guide
vanes and the first stage of the compressor or fan blades. Check for unusual
noise when the compressor is rotated. Inspection of the rear turbine, and
exhaust system. Check the quantity of the lubricating oil for the engine and
the constant speed-drive unit. Check the ignition system for operation by
listening for the sparks.

19. What is meant by trimming a turbine engine? - ANSWER Adjusting the
fuel control so the engine develops the correct idle and trim speed RPM.

20. What type of equipment should be used to determine that a turbine
engine is performing up to the standards specified by the engine
manufacturer? - ANSWER A JetCal Analyzer-Trimmer has all of the
instrumentation and cables to determine the EGT, EPR, and the other
parameters specified by the engine manufacturer.

Where can you find the model of magneto that is approved for an engine
specified by the examiner? - ANSWER T C D S for the engine.

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Exam (elaborations)

ASA Powerplant Oral Exam Combined Set Questions With Revised Correct Detailed Answers |ALREADY GRADED A+ PASS >> BRAND NEW VERSION!

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