What is meant by submersible machine?

Q.  What is meant by submersible machine?
- Published on 29 Sep 15

a. Water from heavy seas shall not enter the machine in harmful quantity.
b. Ingress of water into the machine in a harmful quantity shall not be possible when the machine is immersed in water.
c. Water splashed against the machine from any direction shall have no harmful effect.
d. None of these

ANSWER: Ingress of water into the machine in a harmful quantity shall not be possible when the machine is immersed in water.

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