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单选题
These hatch covers are usually driven by electric or hydraulic power.（）
A
这些舱盖通常是用电力驱动的
B
这些舱盖通常是用液压驱动的
C
这些舱盖通常是用电力或液压驱动的
D
这些舱盖通常是用油压或液压驱动的
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更多 “单选题These hatch covers are usually driven by electric or hydraulic power.（）A 这些舱盖通常是用电力驱动的B 这些舱盖通常是用液压驱动的C 这些舱盖通常是用电力或液压驱动的D 这些舱盖通常是用油压或液压驱动的” 相关考题
考题
A hydraulic motor may be driven by______.A.an electric motorB.a diesel engineC.a compressorD.oil
考题
The primary barrier of a bulk carrier is formed by ______．A.the single skin side shell and the inner bottomB.deck strips，hatch covers and coamingsC.the vertically corrugated transverse watertight bulkheadsD.the single skin side shell between topside and hopper tanks，and the cross deck strips，hatch covers and coamings
考题
开关舱的工作通常是由船员来做。（）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.
考题
船舶的舱盖有多种类型。（）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.
考题
这些舱盖通常是用电力或液压驱动的。（）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.
考题
高速和野蛮操作舱盖均是危险的。（）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.
考题
The cargo gear includes（）.A、derrick, winches, cargo ropes and wiresB、derricks, windlass, capstanC、hatch covers, derricks, windlassD、cranes, hatches, lashing wires
考题
These hatch covers are usually driven by electric or hydraulic power.（）A、这些舱盖通常是用电力驱动的B、这些舱盖通常是用液压驱动的C、这些舱盖通常是用电力或液压驱动的D、这些舱盖通常是用油压或液压驱动的
考题
The（）(自动舱盖) is operated by electric or hydraulic power.A、automatic hatch coverB、folding type coverC、hatch coamingD、side-rolling type cover
考题
单选题船舶的舱盖有多种类型。（）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.
考题
单选题开关舱的工作通常是由船员来做。（）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.
考题
单选题这些舱盖通常是用电力或液压驱动的。（）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.
考题
单选题A hydraulic motor may be driven by （）.A
an electric motorB
a diesel engineC
a compressorD
oil
考题
单选题我船配有自动舱盖。（）A
Our ship is equipped with automatic hatch covers.B
Our ship is equipped with folding-type hatch covers.C
Our ship is equipped with side-rolling hatch covers.D
Our ship is equipped with rolling-type hatch covers.
考题
单选题高速和野蛮操作舱盖均是危险的。（）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.
考题
单选题水手长，我们为什么要开舱盖?（）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?
考题
单选题Bosun, I’ve never operated the hatch covers （）by hydraulic power.A
poweredB
drivenC
movedD
opened
考题
单选题When the weather becomes bad, the hatch covers will be （）(关闭).A
closedB
openedC
handledD
opened and closed
考题
单选题装卸货之前，打开舱盖。（）A
After loading and discharging, hatch covers will be opened.B
After loading and discharging, hatch covers will be closed.C
Before loading and discharging, hatch covers will be opened.D
Before loading and discharging, hatch covers will be closed.
考题
单选题According to the customs of the port, hatch covers are to be operated by （）.A
stevedoresB
watchmenC
winchmenD
foremen
考题
单选题Lube oil pumps taking suction from the sump of most small marine engines are usually （）.A
of the diaphragm typeB
of the centrifugal typeC
of the positive displacement typeD
independently driven by electric motors
考题
单选题To ensure the safety in operating hatch covers, oil the moving parts （）.A
monthlyB
every three monthsC
once monthlyD
every two months
考题
单选题About the jacket water, that of the auxiliary engines usually（） is circulated by pumps, and the main engine usually （）A
an engine-driven；as wellB
an engine-driven；has an independent pumpC
an independent；as wellD
an independent；has an engine-driven pump
考题
单选题The primary barrier of a bulk carrier is formed by（）.A
the single skin side shell and the inner bottomB
deck strips，hatch covers and coamingsC
the vertically corrugated transverse watertight bulkheadsD
the single skin side shell between topside and hopper tanks，and the cross deck strips，hatch covers and coamings
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