How is an engine compression check carried out

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Reference no: EM132339933

Questions :

1. List any four different types of heat engines according to design or fuel that are normally used.

2. Discuss the steps you would take to reduce the risk of hazards associated with vehicular movement during engine reparis.

3. Name five different major components for a four stroke spark ignition or compressor ignition engines.

4. What are the four stroke behind the working of a four stroke engine and in which cycle can detonation take place and why ?

5. List three special tools that you would use to check, diagnose, repair and replace engine component.

6. Name the instructions that would be used for measuring wear of engine parts.

7. Specify two details that you will come across in a service manual regarding engines.

8. What could be some of the reasons for dismantling an engine?

9. What types of pre-dismantling checks could be made when disgnosing engine problems?

10. How is an engine compression check carried out?

11. What is the purpose behind the national Environment protection Measures for Diesel Vehicles?

12. What is angle tightening and torque tightening of bolts and why is it used?

13. What precautions should be taken in relation to value timing in four stroke engine?

14. What are the different types of belts used in an engine?

15. Name the engine components that could need machining during engine reconditioning.

16. List two waste materials that you night get while working on an engine and how should they be disposed of.

17. Calculate the values for the following using the diagram and dimensions given:

a. Swept volume
b. Compression ratio

18. Define the terms volumetric effiecncy, thermal efficiency and mechanical efficiency and its relationship.

Volumetric effiecncy
Thermal efficiency
Mechanical efficiency
Inter relation

19. Define torque, horse torque and brake horse power.

Torque
Horse torque
brake horse power

20. In case of emergency what is the first thing that you should do to turn off a running engine. Please circle the correct one/s.

a.Ignition switch
b.Disconnect the battery
c.Disconnect the spark plug lead
d.All of the above

21. In what ratio does the crank shaft rotates with the camshaft. Please circle the correct one/s.

a. 1:2
b. 2:1
c. 4:1
d. 5:1

22. Which components listed below are related to the engine? Please circle the correct one s.

a. Exhaust muffler
b. Fuel Pump
c. Oil pump
d. Valves

23. What is the correct "Stoichiometric Ratio"? Please circle the correct one/s.

a. 11.1:1 by volume
b. 14.7:1 by weight
c. 14.7:1 by volume
d. 12:1

24. What is the purpose of valve collets? Please circle the correct one /s.

a. To retain valve spring
b. To move the valves
c. To align the valve stem
d. All of the above

25. Only SI engines need electrical charge to create combustion. Please circle the correct one/s.

a. True
b. False

26. In a four stroke engine valves are closed and opened by springs. Please circle the correct one s.

a. True
b. False

27. Generally, in two stroke engine the air fuel mixture passes through the crank case.

a. True
b. False

28. Valve clearances are automatically adjusted in engines with hydralic lifters.

a. True
b. False

29. Some latest engines are not found with manual dipsticks.

a. True
b. False

30. identify the component in the diagram and trace an oil line in the lubrications system below

Reference no: EM132339933

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