Marina Board Exam: Which type of emergency equipment is independent of outside air and suited for use in a compartment readiness for launching with oxygen?

Marina Board Exam 

Which type of emergency equipment is independent of outside air and suited for use in a compartment readiness for launching with oxygen? 

A. AllService Gas Masks (Navy type) 
B. service gas mask used by caost guards 
C. face mask 
D. Oxygen Breathing Apparatus 


Answer:       D. Oxygen Breathing Apparatus 

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