單項(xiàng)選擇題The two factors which make underwater hull repair difficult are accessibility and the().

A.availability of tools
B.shape of the hull
C.pressure exerted by the water
D.threat of progressive flooding


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1.單項(xiàng)選擇題The required fireman’s outfits required for ship’s are not to be used for any other purpose EXCEPT for the().

A.oxygen and explosion meter when it is used for detection of flare gases
B.self-contained breathing apparatus,when used as protection from gas leaking from a refrigeration unit
C.boots and gloves that are made of rubber or electrically non-conductive material,if used when repairing electrical equipment
D.lifeline,if used by personnel entering a compartment which might be deficient of oxygen

2.單項(xiàng)選擇題The radio technician will come aboard()the repairs.

A.on
B.in
C.with
D.for

3.單項(xiàng)選擇題The order of importance in addressing damage control is().

A.control flooding,control fire,repair structural damage
B.restore vital services,control fire,control flooding
C.control fire,restore vital services,control flooding
D.control fire,control flooding,repair structural damage

4.單項(xiàng)選擇題The notice of casualty to a vessel must include().

A.a request for assistance
B.the location of the unit at the time of the casualty
C.an estimate of the cost to repair damages
D.the amount of fuel remaining

5.單項(xiàng)選擇題The Loran needs().

A.repairing
B.to repair
C.repairs
D.have repaired