a) Rings
b) Cylinder walls
c) Bad valve seats
d) All the above
2. With a gasoline engine. Blue gray smoke indicates _______.
a) Rich fuel mixture
b) Coolant leakage into Combustion chamber
c) Lean fuel mixture
d) Engine is burning oil
3. A section of vacuum hose can be used to find engine vacuum leaks
a) True
b) False
4. Low cylinder compression can not be caused by ______.
a) Worn camshaft bearings
b) Blown head gasket
c) Burned values
d) Worn Piston Rings
5. Coolant in oil will show up as white or milky looking oil;
a) Yes
b) No
6. To find
a) _______ clean the affected area or the outside of the engine. Then, trace the leak upward its source.(Oil Leak)
b) ______ will usually flow down and to the rear of the engine because of cooling fan action.(Oil)
7. A hissing sound, like air leaking out of tire is a symptom of ______.
a) Engine exhaust leakage
b) Engine intake leakage
8. Write the matching smoke against the reason:
a) Indicates motor oil is burning in the combustion chambers ______. 1. blue-gray smoke
b) Caused by extremely rich air fuel mixture _______. 2. black smoke
c) Due to internal coolant leak into cylinders _______ 3. white smoke
9. Your senses (sight, smell, hearing, touch) can help you to locate an engine problem
a) True
b) False
10. If a leak is found it can be found if it is oil, coolant, or any other type by:
a) Smell
b) Listening
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