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October 16, 2014 by
M16 -piston engine- 20 questions
1. Valve overlap is defined as the number of degrees of crankshaft travel
2. Full floating pistons pins ( or gudgeon pins) are those which allow motion between the pin and
3. Which statement is correct regarding a four-stroke cycle aircraft engine ?
4. The five events of a four stroke cycle engine in the order of their occurrence are :
5. On which stroke or strokes are both valves on a four stroke cycle reciprocating engine cylinder
6. The actual power delivered to the propeller of an aircraft engine is called
7. Useing the following information, determine how many degrees the crankshaft will rotate both the intake and exhaust valves seated, intake opens at 15 TDC, exhaust opens at 70 BDC , intake closes at 45
8. Some aircraft engine manufacturers equip their product with choked or taper-ground cylinders. The reason choke type cylinders are used is to?
9. The inside of some cylinder barrels is hardened by
10. The horse power developed in the cylinders of a reciprocating engine is known as the
11. The purpose of two or more valve springs in aircraft engines is to
12. Excessive valve clearances will cause the duration of valve opening to
13. When checking compression with differential pressure tester, the test cannot be made with the piston at bottom dead center because
14. How is proper end-gap clearance on new piston rings assured during the major overhaul of an engine ?
15. Compression ratio is the ratio between the
16. A supercharger is usually capable of delivering what induction pressure to the cylinders?
17. If the main air bleed of a float type carburetor becomes clogged, the engine will run
18. On a float type carburettor , the purpose of the economizer valve is to?
19. How does injection of water or water-alcohol during high power output increase the available power of reciprocating engines?
20. What is the best indication of worn valve guides?
jawad
sawal hi ghalat thy

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