Diesel Mechanic- Trade Theory Sample Question

DIESEL MECHANIC

Sub:- Trade Theory 

Sample Question Paper

1. What is Engine?
2. What is Machine?
3. Name the sequence of operation in a cycle of an engine?
4. The engine in which combustion of fuel takes place outside the engine cylinder called_________.
5. The Petrol Engine works on which Cycle?
6. A petrol engine, during suction strokes draws___________.
7. A Petrol engine has compression ration from_________.
8. A Diesel engine has compression ration from_________.
9. The air-fuel ration of the petrol engine is controlled by_________.
10. Define Carburettor.
11. What is Scavenging?
12. The spark plug gap is kept from__________.
13. Full form of S.A.E is________.
14. The number of exhaust manifold in a V-6 engine are_________.
15. What is the main function of a governor?
16. What is Clutch?
17. The diameter of a cylinder is called________.
18. Steam Engine is an___________ combustion engine.
19. C.C. means_______________.
20. The power which is prepared in cylinder is known as________.
21. I.H.P is always______________ than B.H.P.
22. What is the function of thermostat value?
23. The main function of lubricating oil is to______________.
24. Full form of E.G.R. is_________________.
25. Which metal is used to make piston?
26. Why piston ring is used on a piston?
27. Write the name of tool is used to remove the piston ring?
28. Write the main function of a connecting rod.
29. Write the main function of compression ring.
30. Write the main function of oil ring.
31. Write the main function of Catalytic Converter.
32. How does SMOG form?
33. Write three difference between Petrol Engine & Diesel Engine.
34. How many types of cooling system and name them?
35. Write the main function of a flywheel.
36. Clutch is fitted in between_____________.
37. What is stroke?
38. How C.C. can be find out in engine having one cylinder. When cylinder bore is 75mm and length of stroke 75mm?
39. Write the firing order of a four cylinder engine.
40. Name the different types of liners?
41. F.P.=I.P.-____________
42. What is detonation?
43. What is an I.C. Engine?
44. What is an E.C. engine?
45. Name the different system for lubrication the engine.
46. Bearing are generally made up of_____________
47. The thermal efficiency of a petrol engine is_____________ than that of a diesel engine. 
48. The colour of exhaust from diesel engine is generally____________.
49. An ignition coil in the spark ignition engine supplies_____________ voltage to the spark plug. 
50. A two stroke cycle engine gives_____________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.