The _________ is called the "backbone" of the engine.
A. camshaft
B. crankshaft
C. bearing
D. cylinder
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The crankshaft is used to change the ____________ motion of the piston into __________ motion.
A. reciprocating, rotary
B. rotary, reciprocating
C. vertical, horizontal
D. horizontal, vertical
The flywheel on the crankshaft is made of ________.
A. high quality steel
B. high-strong steel
C. carbon steel
D. stainless steel
The flywheel on the crankshaft can absorbd some the energy during _________.
A. the intake stroke
B. the power stroke
C. the compression stroke
D. the exhaust stroke
It is _____ at the top of the piston.
A. thick
B. thin
C. big
D. small
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