USCG USCG Steam
Set 13 • Question #148 of 496
Launch Interactive Practice Room The main propulsion shaft turning gear usually connects to the free end of the high-speed high pressure pinion because the __________.
A
lubricating oil from the high-speed pinion can easily supply the turning gears
B
turning gears are double reduction worm type and cannot mate with the low pressure high- speed pinion
C
arrangement allows for the use of a muff type coupling for flexibility and smooth engagement
D
greatest gear ratio between the turning gear motor output and bull gear can be obtained
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'The main propulsion shaft turning gear usually connects to the free end of the high-speed high pressure pinion because the', the verified engineering fact is: 'greatest gear ratio between the turning gear motor output and bull gear can be obtained'.
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