Question 1424 Deck General

70% to pass

Which statement about entry into a space that has been sealed for a long time is TRUE?

A The heat of the sun on upper ballast tanks, such as in a bulk carrier, may generate carbon monoxide.

B The natural ventilation through the installed vents is sufficient to provide the proper oxygen content.

C A tank that has been used to carry hazardous liquids should be tested for oxygen content, toxicity, and explosive gases.

D You can safely enter the space without a breathing apparatus if the oxygen content exceeds 14%.

AI Explanation

The correct answer is C. A tank that has been used to carry hazardous liquids should be tested for oxygen content, toxicity, and explosive gases. This is correct because spaces that have been sealed for a long time can develop hazardous conditions due to the lack of ventilation. Testing for oxygen, toxicity, and explosive gases is crucial before entering such spaces to ensure the safety of the personnel. Options A, B, and D are incorrect because they do not fully address the need for proper testing and evaluation of the space before entry.

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