A. Heavy derrick is used for lifting large heavy cargo.
B. Derrick is used for lifting large heavy cargo.
C. Heavy derrick is used for lifting dry bulk cargo.
D. Derrick is used for lifting dry bulk cargo.
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A. The ship needs loading.
B. The ship needs discharging.
C. The ship needs unloading.
D. The ship needs loading and discharging.
A. Bosun, why do we open hatch covers?
B. Officer, why do we open hatch covers?
C. Bosun, why do we close hatch covers?
D. Bosun, why do we open hatches?
A. After operation, start the electric motor.
B. Before operation, stop the electric motor.
C. Before operation, start the electric motor.
D. After operation, stop the electric motor.
A. To avoid shock, reduce the speed of moving hatch cover by inching control.
B. To avoid shock, reduce the speed of moving hatch cover by control levers.
C. To avoid shock, reduce the position of moving hatch cover by inching control.
D. To avoid shock, reduce the course of moving hatch cover by control levers.
A. High-speed operation and rough handling of hatches are dangerous.
B. Low-speed operation and rough handling of hatches are dangerous.
C. Low-speed operation and rough handling of hatch covers are dangerous.
D. High-speed operation and rough handling of hatch covers are dangerous.
A. We dismantle the jumbo boom twice a voyage.
B. We dismantle the derricks once a voyage.
C. We examine the derricks once a voyage.
D. We dismantle the heavy derricks once a voyage.
A. Each hatch consists of two panels.
B. Each hatch cover consists of two panels.
C. Each hatch consists of two or more panels.
D. Each hatch cover consists of two or more panels.
A. These hatches are usually driven by electric or hydraulic power.
B. These hatch covers are usually driven by electric or hydraulic power.
C. These hatch covers are usually driven by electric.
D. These hatch covers are usually driven by hydraulic power.
A. There are several types of hatch covers on board ship.
B. There are several types of hatches on board ship.
C. There is one type of hatches on board ship.
D. There is one type of hatch covers on board ship.
A. The work of opening and closing hatches is usually done by crew members.
B. The work of opening and closing hatch covers is usually done by crew members.
C. The work of opening hatch covers is usually done by crew members.
D. The work of closing hatch covers is usually done by crew members.
最新试题
Stores in Deck Department are: common tools, ropes, working protection gears, all kinds of paint and so on.()
During loading and discharging, the equipment works with all kinds of cargo sling, net, wire, tray, plate clamp, etc.()
Lifting capacities of derricks vary from three to ten tons. ()
KEEP UPRIGHT()
Cargo handling gear is the most important deck fitting.()
The SWL of the derricks are different from 5 tons to 10 tons.()
Persons who load and discharge ships are called stevedores.()
Those lashing tools must be tightened again before and after bad weather.()
NO HOOK()
I’ll ask the electrician to repair the winch. ()