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It is free to read here, but a comprehensive guide for written exam questions from year 2005-2011 is also available in print.
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With reference to cargo tanks of oil tanker The purpose of pressure vacuum valve

In MEO Written Exams - Asked by sajith kumar - 8 months ago

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An automatic dual purpose valve, commonly fitted in the vent lines of tankers. When in the closed position, the function of this valve is to relieve either pressure or vacuum in a tank. When in the open position it allows the passage of air or vapor into and out of the tank.

Answered by gmvel
8 months ago

0 0

A globe type PV valve is fitted to a cargo tank to prevent over/under pressure, Which is a manually operated valve. while a liquid filled PV breaker is fitted on the IG system, again to prevent over/under pressurisation of a cargo tank when ever the limits are crossed its automatically acts to prevent any damage to the tank.

Answered by Master
8 months ago

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. How anchor chain bitter end is connected?