a) For lubricating film
b) Allow for expansion of piston due to heat
2. Ring gap is the ___________ between the ends of the rings.
a) Space
b) Clearance
c) Allowance
d) Fit
3. Ring gap allows the gases to pass to the crankcase.
a) Yes
b) No
4. Ring gap allows the ring to be made slightly ______ in diameter than the cylinder.
a) Shorter
b) Larger
5. Compression ring must prevent combustion pressure from leaking between piston and ___________
a) Cylinder wall
b) Values
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