MEK Exit Exam • Set 6 Question 2 of 30
Air vent to tanks is provided for
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Direct Answer
Option A: preventing build up of pressure or vaccum
Air vent pipes are installed on tanks to allow air to escape when filling and to let air enter when emptying. This prevents dangerous pressure buildup or vacuum formation which could cause tank structural damage.
All Options
A
preventing build up of pressure or vaccum
(Correct Answer)
B
allowing liquid to come out when tank is full
C
preventing fire
D
for ventilation
Detailed Explanation & Context
Air vent pipes are installed on tanks to allow air to escape when filling and to let air enter when emptying. This prevents dangerous pressure buildup or vacuum formation which could cause tank structural damage.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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