Question 943 Deck General

70% to pass

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

A 1½ mawp
B 2 mawp
C 3 mawp
D 5 mawp
AI Explanation

The correct answer is A) 1½ mawp. According to the regulations governing Coast Guard Captain's License Examinations, vapor recovery hoses must be tested annually at 1½ times their maximum allowable working pressure (MAWP). This requirement ensures the hoses can withstand the pressure they will be subjected to during normal operation, with an additional safety factor built in. The other options (2 mawp, 3 mawp, and 5 mawp) exceed the regulatory requirement and would result in over-testing the hoses, which is unnecessary.

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