Question 943Deck General70% to pass
Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?
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.
Related Questions
#941 Which of the signals listed is required to be displayed at night while bunkering at a dock? #942 Which statement is TRUE of centrifugal pumps aboard tankers? #944 While underway and towing an unmanned tank barge you are required to _______________.#945 The vapor pressure of a gas is defined as the pressure necessary to keep it in what state? #946 When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery, the atmosphere must be sampled _______________.