The linear motion of a diesel engine piston is converted to the rotary motion required to drive gears, propeller shafts, and generators by the （）.

What is the crank angle between any two crank throws in the firing order of a four-stroke cycle, in line, eight cylinder diesel engine?（）

A.45
B.60
C.90
D.100

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Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）.

A.inside micrometer
B.feeler gauge
C.adjustable trammel
D.sighting device

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