A.the speed to be retarded by the friction brake
B.a load to go downward at full speed
C.the circuit breaker to turn off
D.the resistors to overheat and eventually burn out
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A.International Cargo Bureau Regulations
B.Load Line Regulations
C.Rules and Regulations for Cargo and Miscellaneous Vessels
D.Vessel's classification society rules and regulations
A.Hoist upper & lower limits
B.Luff travel limits
C.Rider block hoist upper & lower limits
D.All of the above
A.is the SWL of the crane
B.are the SWL of the crane
C.the SWL of the crane is
D.the SWL of the crane are
A.executed
B.located
C.fixed
D.measured
A.Electro-hydraulic units
B.Steam units
C.Independent internal combustion power units
D.All of the above
最新試題
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.
What is meant by the term“l(fā)uffing the boom”of a crane（）．
Most pedestal crane power is provided by（）.
How should you signal the crane operator to move slowly（）.
Running an electric winch at slow speed over a long period of time causes（）.
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
The net productivity per gang-hour can be improved through a decrease of（）.