Question 1470 Deck General

70% to pass

Which of the following procedures would insure proper seating of the valve when closing?

A set up tight using a valve wrench
B closed, opened a half turn, and then closed again
C closed against the stop and the locking pin inserted
D set up as tight as possible by hand
AI Explanation

The correct answer is B) closed, opened a half turn, and then closed again. This procedure ensures proper seating of the valve by allowing the valve to self-align and seat properly when closed. Closing the valve all the way and then opening it slightly before re-closing allows the valve to settle into its optimal position, preventing potential leaks or improper seating that could occur from simply closing the valve tight against the stop. The other options are incorrect because A) using a wrench to close the valve tightly may damage the valve, C) inserting a locking pin does not ensure proper seating, and D) closing the valve as tight as possible by hand does not provide the necessary controlled opening and re-closing to allow the valve to seat properly.

Related Questions
Q@q.QuestionNumber:With a large ocean tow in heavy weather, you should NOT _______________. Q@q.QuestionNumber:Which pump must always be primed? Q@q.QuestionNumber:Your ship departed Venezuela for New York, loaded with 10,000 barrels of crude o... Q@q.QuestionNumber:All portable fire extinguishers must be capable of being _______________. Q@q.QuestionNumber:Control of flooding on a MODU should be addressed _______________.

Ready to test your knowledge?

Take a Deck General Practice Exam
Official Resources
USCG Navigation Center USCG National Maritime Center Merchant Mariner Credentials
← Previous Question All Questions Next Question →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App