When used with reversing reduction gears, main propulsion diesel engines should be bolted tight to their foundations with fitted bolts at the output drive end and snug bolts with elongated bolt holes at the opposite end. This is done to __________.
A
maintain alignment when the ship's hull is working in heavy seas
B
ensure engine vibrations correspond to the natural frequency of the hull
C
permit thermal expansion of the engine frame away from the driven equipment as the engine reaches operating temperature
D
maintain proper engine thrust bearing clearances
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Question 1 / 205eccefa3bacbc34ba4d47cc5
Question 1 of 205eccefa3bacbc34ba4d47cc5
When used with reversing reduction gears, main propulsion diesel engines should be bolted tight to their foundations with fitted bolts at the output drive end and snug bolts with elongated bolt holes at the opposite end. This is done to __________.
When used with reversing reduction gears, main propulsion diesel engines should be bolted tight to their foundations with fitted bolts at the output drive end and snug bolts with elongated bolt holes at the opposite end. This is done to __________.