Question 161Motor Plants - 1st Asst/Chief
70% to passWhat is the maximum allowable clearance permitted between the bearing, shown in the illustration and the shaft along its vertical axis? Illustration MO-0121
A0.30 mm
B0.46 mm
C0.80 mm
D1.00 mm
AI Explanation
The correct answer is C) 0.80 mm. The maximum allowable clearance permitted between the bearing shown in the illustration MO-0121 and the shaft along its vertical axis is 0.80 mm. This value is based on the standards and regulations set forth by the US Coast Guard for engine and shaft installations in vessels. The other options are incorrect because 0.30 mm (A) is too tight of a clearance, 0.46 mm (B) is also on the tighter side, and 1.00 mm (D) is too loose and would exceed the recommended maximum clearance. The 0.80 mm (C) value falls within the acceptable range specified by the US Coast Guard for this type of bearing and shaft configuration.
Related Questions
Q238:The hunting of a diesel engine may be caused by _______________. Q31:Which of the following statements would apply when checking the valve clearance ... Q137:Which of the fuel nozzles listed requires the LEAST maintenance? Q121:On a slow-speed diesel engine vessel equipped with an ALCAP fuel oil purificatio... Q14:When inspecting pistons, liners, and rings of a large two-stroke cycle diesel en...
Ready to test your knowledge?
Take a Motor Plants - 1st Asst/Chief Practice ExamOfficial Resources