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Diesel Mechanic Practice Test: Cooling System & Lubrication System
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Diesel Mechanic Practice Test: Cooling System & Lubrication System
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25 Questions

1. How oil deliver from the crank shaft main bearings to connecting rodbearings?
2. Which system the gear type oil pump is used?
3. A radiator pressure cap contains 2 valves. What are they?
4. What is the purpose of the dip stick used in theengine?
5. What is the purpose of water pump in coolingsystem?
6. What is the effect if the radiator cores are clogged?
7. Which part drives the oilpump?
8. Between which two parts the thermostat is located in the cooling system?
9. How the water pump get drive in pump circulation coolingsystem?
10. What is the purpose of a radiator pressure cap?
11. Which type of pump is used in water cooling system?
12. What is the purpose of water pump by-pass hole in the engine cooling system?
13. Which part helps to increase the water boiling point in water coolingsystem?
14. Where the metal fins are provided in the air cooledengine?
15. How many valves are used in radiatorcap?
16. What is the name of part marked as‘x’?
17. Which part is lubricated by splash lubricationsystem?
18. When it is required to change the water pumpbearing?
19. Friction is ------ when pressure is low.
20. Which one is the properties oflubricant
21. What is the effect if thermostat valve is struck?
22. What is the name of checking?
23. The main purpose of pressure radiator cap is to.........
24. When the thermostat valve open inengine?
25. If thethermostat valve remain closed, then......

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