Question 432Motor Plants - Assistant Engineer
70% to passWhen inspecting the valve mechanism shown in the illustration, normal maintenance would include_______________. Illustration MO-0074
Amechanically adjusting the valve at point "D"
Bmechanically adjusting the valve at point "E"
Cchanging the tappet clearance as measured between points "A" and "B"
Dmeasuring the cold valve clearance between components "C" and "D"
AI Explanation
The correct answer is D) measuring the cold valve clearance between components "C" and "D". The valve clearance, which is the gap between the valve stem and the rocker arm, needs to be checked and adjusted as part of normal maintenance on the valve mechanism. Measuring the cold valve clearance between components "C" and "D" is the appropriate procedure, as this ensures the valve is opening and closing properly. The other options, such as adjusting the valve at points "D" or "E", or changing the tappet clearance, are not the correct maintenance steps for this particular valve mechanism.
Related Questions
Q@q.QuestionNumber:The hunting of a diesel engine may be caused by _______________. Q@q.QuestionNumber:Precombustion chambers differ from turbulence chambers in that precombustion cha... Q@q.QuestionNumber:Wrist pin bearings are difficult to lubricate because of their oscillating motio... Q@q.QuestionNumber:The device shown in figure "A" of the illustration is used to_______________. Il... Q@q.QuestionNumber:Theoretical perfect combustion in a diesel engine yields by-products of ________...
Ready to test your knowledge?
Take a Motor Plants - Assistant Engineer Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App