Are you testing the()(液压舱盖)?
第1题:
Which of the following can be used in hydraulic transmission system?
A.Hydraulic oil
B.Animal oil
C.Light oil
D.Fuel oil
第2题:
Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?
A.the hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第3题:
The()(滚动式舱盖) runs along the guide rail.
第4题:
这些舱盖通常是用电力或液压驱动的。()
第5题:
Bosun, I’ve never operated the hatch covers ()by hydraulic power.
第6题:
These hatch covers are usually driven by electric or hydraulic power.()
第7题:
Constant tension mooring winch system
Hatch cover system
Watertight door system
Internal combustion engine hydraulic starter system
第8题:
rolling type hatch cover
side-rolling hatch cover
folding type hatch cover
automatic hatch cover
第9题:
hydraulic hatch cover
hydraulic release unit
hydraulic oil jack
automatic hatch cover
第10题:
rolling type hatch cover
side-rolling hatch cover
folding type hatch cover
automatic hatch cover
第11题:
permanent loss of pump suction
worn shaft seals
high level in the oil sump
low motor RPM
第12题:
control the back pressure of return oil
lock the oil lines under some conditions
change the direction of oil flow
act as relief valve
第13题:
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ______.
A.dirt
B.fuel oil
C.governor cooling water
D.fuel oil tar(焦油)
第14题:
hatch cover()
第15题:
The()(折叠式舱盖) can fold slowly.
第16题:
为了避免震动,用低速控制钮减低移动舱盖的速度。()
第17题:
每一个舱盖由两个或更多的盖板组成。()
第18题:
The()(自动舱盖) is operated by electric or hydraulic power.
第19题:
To avoid shock, reduce the speed of moving hatch cover by inching control.
To avoid shock, reduce the speed of moving hatch cover by control levers.
To avoid shock, reduce the position of moving hatch cover by inching control.
To avoid shock, reduce the course of moving hatch cover by control levers.
第20题:
automatic hatch cover
folding type cover
hatch coaming
side-rolling type cover
第21题:
add fluid that is the same color as the fluid in the reservoir
add turbine oil because it is always a good substitute
add any oil that has the same viscosity as the hydraulic fluid
check the winch manufacturers instruction book
第22题:
这些舱盖通常是用电力驱动的
这些舱盖通常是用液压驱动的
这些舱盖通常是用电力或液压驱动的
这些舱盖通常是用油压或液压驱动的
第23题:
These hatches are usually driven by electric or hydraulic power.
These hatch covers are usually driven by electric or hydraulic power.
These hatch covers are usually driven by electric.
These hatch covers are usually driven by hydraulic power.