网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
当油泵与电机间联轴器损坏会报出（）故障。
- A、Err154 Gearbox high spee；Dpump no pressure
- B、Err093 Timeout gearbox heating
- C、Err131 Gearbox oil temperature>90Ø
- D、Err144 Circuit breaker gearbox high speed
参考答案
更多 “当油泵与电机间联轴器损坏会报出（）故障。A、Err154 Gearbox high spee；Dpump no pressureB、Err093 Timeout gearbox heatingC、Err131 Gearbox oil temperature90ØD、Err144 Circuit breaker gearbox high speed” 相关考题
考题
any pointer positionDue to failure of one of the carbon brushes the excitation voltage is lost on one alternator that operating in parallel.Then that alternator will()
A.completely loose its share of the load causing the auxiliary engine to speed up.B.overload due to reduced voltage output and increased currentC.continue to share the active load(kw)but have high very reactive loadD.try to take all the load and so trip the main circuit breaker
考题
The desirable properties of a marine fuel oil should include .A.high flash point and high viscosityB.low flash point and high viscosityC.low heating value and high sulphur contentD.high heating value and low sulphur content
考题
A high rate of separation between oil and water is favored by ______.A.large size of oil globule(小球)B.low temperatureC.high viscosityD.high flow rate
考题
Running an electric winch at slow speed over a long period of time causes ______．A.the speed to be retarded by the friction brakeB.a load to go downward at full speedC.the circuit breaker to turn offD.the resistors to overheat and eventually burn out
考题
材料：While berthed alongside in Tenerife，the cruise ship Arcadia was carrying out a lifeboat drill．One lifeboat was successfully launched and as it was being recovered，the winch hoisting it failed．The lifeboat was still connected to the falls and it dropped back into the sea. To investigate what had happened，the crew had to wind the falls back onto the winch drum．The lifeboat was disconnected while the crew tried to restart the winch．They were unsuccessful because of a fault on the hand crank cutout switch．The crew then attempted to wind the falls back on using the hand crank，but because of the time and effort involved，the cutout switch was bypassed and power restored to speed up the operation．The crank handle was left in place． The winch was started．It began to turn and so too did the handle which hit one of the crew over the head．The investigation found that the winch failed in the first place because the oil used in the winch gearbox was not one recommended．It was too viscose and would have prevented the coupling locking mechanism from operating correctly．问题：It was the fault on the ________ that caused the failure to recover the lift boatA.crank handleB.hand crank cutout switchC.power systemD.fallsIt was the ________ that hit the crewmember on his head．A.fallsB.hand crank cutout switchC.crank handleD.winch drumThe cause of the accident was that ________．A.the oil used in the winch gearbox was too viscoseB.the winch drum was connected with the fallsC.the life boat was too heavyD.the bypass to the cutout switch was misused by the crewThe lesson from this accident is that ________．A.seafaring is not all about facing unforeseen situationsB.it is not necessary to wear hard hats to prevent sore headsC.the wrong oil can not have serious repercussionsD.do not start lifeboat winch motors with the crank handle in place请帮忙给出每个问题的正确答案和分析，谢谢！
考题
单选题A marine diesel engine is started by（）A
supplying high pressure oil into a hydraulic motorB
supplying high temperature air into the cylinderC
supplying high pressure air into the cylinderD
electrical igniting
考题
单选题The （） engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.A
four-strokeB
two-strokeC
slow speedD
reversible
考题
单选题Why a gearbox is needed in a ship driven by a medium-speed diesel engine?（）A
To reduce the main engine speedB
To increase the main engine speedC
To govern the main engine speedD
To fix the propeller shaft
考题
单选题An over-speed trip stops a diesel engine when the engine （）A
runs out of fuelB
has low lubricating oil pressureC
exceeds a set maximum speedD
has high cooling water temperature
考题
单选题The purpose of an oil mist detector in a main propulsion diesel engine is to warn of （）A
excessive mist density in the crankcasesB
excessively high crankcase vacuumC
excessively high bearing temperatureD
excessive carbon buildup in the lube oil
考题
单选题High speed aircraft is made of metals that can（）both high temperature and pressure.A
stand byB
put up withC
withholdD
withstand
考题
单选题When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）A
The high temperature facilitates primary gravity separationB
Most of the oil and organic solvents are raised to the top layerC
The high the temperature is, the more the top oil will be collectedD
The high temperature has little use on the separation of emulsified oil
考题
单选题The common rail engines show great advantages in combustion especially（）.A
at high speed and full loadB
at low speed and part loadC
when heavy fuel oil is used at seaD
when the ships run long distance
考题
单选题The four-stroke engine is used for （） and sometimes for main propulsion with a gearbox to provide a propeller speed of between 90 to 120 rev/min.A
alternatorB
turbo-chargerC
remote controllerD
windlass
考题
单选题The （） engine is used for alternators and sometimes for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.A
four-strokeB
two-strokeC
slow speedD
reversible
考题
单选题An important consideration in selecting a lubricating oil for use in a refrigeration compressor is for the oil to （）A
have a high viscosity indexB
mix readily with refrigerantC
have a high freezing pointD
have a low pour point
考题
单选题Heat damage to fuel injection nozzles on small high-speed diesel engines, can be prevented by（）A
employing fuel oil as a cooling mediumB
preventing hard carbon deposit on nozzle tipsC
avoiding fuel oil temperature exceeding builder’s specificationD
ensuring good metallic contact between nozzles and cylinder heads
考题
单选题When attempting to restart a warm high-speed engine, which of the following reactions can you expect?（）A
Excessive fuelB
Higher than normal temperatures for star upC
Longer starting periodsD
Higher than normal lube oil pressure
考题
名词解释题英译汉：gearbox
热门标签
最新试卷
