单项选择题
A.Hoist rope is not kinked B.Multiple part lines are not twisted around each other C.The hook is centrally located over the load D.All of the above
Before operating a non-oceangoing ship greater than 100...
单项选择题Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.
A.approved oil-water separating equipment B.a fixed or portable containment system at the shore connection C.a spare pump in case the main pump is inoperative D.at least one outlet accessible from the weather deck
An instrument useful in predicting fog is the（）.A.sling...
单项选择题An instrument useful in predicting fog is the（）.
A.sling psychrometer B.microbarograph C.anemometer D.aneroid barometer
An advantage of nylon rope over manila rope is that nyl...
单项选择题An advantage of nylon rope over manila rope is that nylon rope（）.
A.can hold a load even when a considerable number of the yarns have been abraded B.can be stored on deck，exposed to sunlight C.can be used in conjunction with wire or spring-lay rope D.gives audible warning of overstress whereas manila does not
