1. The component of the oil filter that prevents the passage of metal particles and sludge is:
(A) Element
(B) Relief valve
(C) Check valve
(D) Case
2. Which of the following indicates multi-grade oil:
(A) SAE 30
(B) API SF
(C) SAE 20W-50
(D) API 50
3. Which of the following oil is more viscous:
(A) SAE 30
(B) SAE 40
(C) SAE 70
(D) SAE 80
4. Before an oil filter is fitted, what should be inspected in addition to the rubber seal:
(A) The filter paper
(B) The top of the filter
(C) The threads
(D) The engine oil temperature
5. How much oil should be applied to the rubber seal:
(A) A little at several points on the seal
(B) Enough to make the entire seal glisten
(C) So much that it drips off when the filter is tilted
(D) None of these
6. What happens to engine oil if engine coolant leaks into it:
(A) It appears milky
(B) It becomes foamy
(C) It turns black
(D) None of the above
7. What part should be checked for oil leakage after engine oil replacement:
(A) Oil pump
(B) Oil filter
(C) Oil filler cap
(D) Drain bolt
8. What are the main functions of engine oil:
(A) Lubrication
(B) Cooling
(C) Sealing
(D) All of these
9. Of the following problems, which one is caused by the use of incorrect engine oil:
(A) Decreased fuel efficiency
(B) It becomes foamy
(C) Shortened engine service life
(D) All of these
10. Which of the following classifications indicates engine oil quality/performance:
(A) ATF
(B) SAE
(C) GVW
(D) API
11. Which of the following classifications indicates engine oil viscosity:
(A) ATF
(B) SAE
(C) GVW
(D) API
12. Which of the following classifications indicates diesel engine oil quality:
(A) SD
(B) SH
(C) CC
(D) KW
13. What is the main cause of changes in engine oil viscosity:
(A) Humidity
(B) Temperature
(C) Vibration
(D) Contamination
14. What must be done when the engine oil pressures are found to be correct:
(A) The oil pump should be checked
(B) The oil pressure warning lamp should be checked
(C) The oil pressure switch should be checked
(D) The oil level should be checked
15. The engine oil level should be checked:
(A) Immediately after the ignition switch is turned off
(B) While the engine is running
(C) A few minutes after the ignition switch is turned off
(D) While the engine is running at high idle speed