單項選擇題Electric generators can be protected against overload().

A.With switches
B.With a governor on the engine
C.With fuses or circuit breakers
D.By using heavy wire


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1.單項選擇題Deadweight,which is the cargo carrying capacity of a vessel in tons,is determined by().

A.Loaded displacement minus light displacement
B.Gross tonnage minus net tonnage
C.Loaded displacement minus net tonnage
D.Light displacement minus the weight of the vessel

4.單項選擇題A stopper is().

A.A short length of line used for temporarily holding another line
B.A snatch block for handling a topping lift
C.An engine order telegraph
D.The brake on a cargo winch

5.單項選擇題A stay is().

A.Standing rigging
B.A downhaul
C.A halyard
D.A jib