Question 2696 Deck General

70% to pass

Towing vessel fire protection regulations require that all fuel tank vent pipes comply with all of the following provisions EXCEPT that the vent _______________.

A must have a positive-acting shut-off valve to prevent water from entering the tank in heavy weather
B be fitted with a 30-by-30 corrosion resistant flame screen
C connects to the highest point of the tank
D system discharges on a weather deck through a U-shaped 180 degree pipe bend
AI Explanation

The correct answer is A. Towing vessel fire protection regulations do not require that the fuel tank vent pipe have a positive-acting shut-off valve to prevent water from entering the tank in heavy weather. The other provisions - having a 30-by-30 corrosion resistant flame screen, connecting to the highest point of the tank, and discharging on a weather deck through a U-shaped 180 degree pipe bend - are all required by the regulations. However, a positive-acting shut-off valve is not a mandatory requirement for the fuel tank vent pipe system.

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