Lesson 4
PRACTICE EXERCISE
1.
A passage is drilled in the connecting rod between the rod bearing and piston pin with which type of
lubrication system?
a.
Full-force feed
b.
Force feed
c.
Splash
2.
Under what conditions does the oil bypass valve open?
a.
When the oil filter is clogged
b.
When the oil pump becomes worn
c.
When the relief valve closes
3.
During which two strokes of the piston is blowby most likely to occur?
a.
Intake and exhaust
b.
Power and exhaust
c.
Compression and power
4.
If an engine is burning oil, the exhaust smoke will usually have a
a.
black color.
b.
bluish color.
c.
whitish color.
5.
Which is the most likely cause of water in the engine oil?
a.
Leaking head gasket
b.
Cracked piston
c.
Worn piston rings
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