Are you testing the（）(液压舱盖)?A、hydraulic hatch coverB、hydraulic release unitC、hydraulic oil jackD、automatic hatch cover
Are you testing the（）(液压舱盖)?
- A、hydraulic hatch cover
- B、hydraulic release unit
- C、hydraulic oil jack
- D、automatic hatch cover
相关考题：
If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allow for contraction to preventA.failure of the hydraulic hoseB.excessive flow through the lineC.friction in other areas of the hydraulic systemD.overheating of the hydraulic fluid
Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.A.permanent loss of pump suctionB.worn shaft sealsC.high level in the oil sumpD.low motor RPM
Which of the following problems may be encountered by using an oil having a viscosity higher than that specified for an operating hydraulic system?A.External seal leakageB.Hunting due to fast responseC.Hydraulic oil film breakdownD.Increased power consumption
Which of the following can be used in hydraulic transmission system?A.Hydraulic oilB.Animal oilC.Light oilD.Fuel oil
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ______.A.dirtB.fuel oilC.governor cooling waterD.fuel oil tar(焦油)
Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?A.the hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
The（）(滚动式舱盖) runs along the guide rail.A、rolling type hatch coverB、side-rolling hatch coverC、folding type hatch coverD、automatic hatch cover
The（）(折叠式舱盖) can fold slowly.A、rolling type hatch coverB、side-rolling hatch coverC、folding type hatch coverD、automatic hatch cover
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.
为了避免震动，用低速控制钮减低移动舱盖的速度。（）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.
Bosun, I’ve never operated the hatch covers （）by hydraulic power.A、poweredB、drivenC、movedD、opened
每一个舱盖由两个或更多的盖板组成。（）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.
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
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
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）AConstant tension mooring winch systemBHatch cover systemCWatertight door systemDInternal combustion engine hydraulic starter system
单选题为了避免震动，用低速控制钮减低移动舱盖的速度。（）ATo avoid shock, reduce the speed of moving hatch cover by inching control.BTo avoid shock, reduce the speed of moving hatch cover by control levers.CTo avoid shock, reduce the position of moving hatch cover by inching control.DTo avoid shock, reduce the course of moving hatch cover by control levers.
单选题The（）(滚动式舱盖) runs along the guide rail.Arolling type hatch coverBside-rolling hatch coverCfolding type hatch coverDautomatic hatch cover
单选题The（）(自动舱盖) is operated by electric or hydraulic power.Aautomatic hatch coverBfolding type coverChatch coamingDside-rolling type cover
单选题Are you testing the（）(液压舱盖)?Ahydraulic hatch coverBhydraulic release unitChydraulic oil jackDautomatic hatch cover
单选题If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should （）.Aadd fluid that is the same color as the fluid in the reservoirBadd turbine oil because it is always a good substituteCadd any oil that has the same viscosity as the hydraulic fluidDcheck the winch manufacturers instruction book
单选题The（）(折叠式舱盖) can fold slowly.Arolling type hatch coverBside-rolling hatch coverCfolding type hatch coverDautomatic hatch cover
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
单选题Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by（）Apermanent loss of pump suctionBworn shaft sealsChigh level in the oil sumpDlow motor RPM
单选题这些舱盖通常是用电力或液压驱动的。（）AThese hatches are usually driven by electric or hydraulic power.BThese hatch covers are usually driven by electric or hydraulic power.CThese hatch covers are usually driven by electric.DThese hatch covers are usually driven by hydraulic power.
单选题Hydraulic control check value is generally used to （） in the marine hydraulic mechanism.Acontrol the back pressure of return oilBlock the oil lines under some conditionsCchange the direction of oil flowDact as relief valve