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）
单选题
（） for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.
A
The driven gear
B
The drive
C
The grease
D
The lubricating oil
参考答案
参考解析
解析：
暂无解析
更多 “单选题（） for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.A The driven gearB The driveC The greaseD The lubricating oil” 相关考题
考题
The spur geared mooring winches have advantages over worm geared ones in .A.higher efficiency of the gear train while reversingB.the higher gear ratioC.the multi-start featureD.higher recovering speed
考题
One of the most common causes of reduction gear failure is gear wear caused by scoring as a result ofA.surface fatigue of the gearsB.an inadequate lube oil filmC.plastic flow of the gearsD.fretting corrosion from water
考题
Always ensure that the turning gear is______, even at the quay, the wave from other ships may turn the propeller and thus the engine.A.disengagedB.engagedC.assembledD.disassembled
考题
A spur gear pump should be operated with the discharge valves ______.A.slightly openedB.throttledC.fully openedD.halfway opened
考题
Wear occurring at the tips of the reduction gear teeth is usually the result of ______.A.surface fatigueB.fretting corrosionC.heavy overloadingD.gear misalignment
考题
A vessel is "engaged in fishing" when ______.A.her gear extends more than 100 meters from the vesselB.she is using any type of gear，other than linesC.she is using fishing apparatus which restricts her maneuverabilityD.she has any fishing gear on board
考题
控制面板显示EnvTem、GeaOilLev表示：（）A、Gear oil lev switch、Environ temperatureB、Gear oil level、Environment temperatureC、Gear oil level switch、Environment temperatureD、Gear oil level switch、Environment temp
考题
单选题The majority of automatic mooring winches are spur geared to improve the backward efficiency of the gear train for rendering（）A
spur gearedB
screw gearedC
worm gearedD
belt driven
考题
单选题The spur geared mooring winches have advantages over worm geared ones in（）A
higher efficiency of the gear train while reversingB
the higher gear ratioC
the multi-start featureD
higher recovering speed
考题
单选题An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of （）.A
maintaining a steadier speedB
delivering liquids over greater distancesC
operating for longer periods of timeD
producing a smoother discharge flow
考题
单选题Which of the following is NOT true according to the passage?（）A
Both the main steering gear and the auxiliary steering gear should be operatedB
The alarms fitted to the remote control system should be operatedC
The emergency generator compartment should be checkedD
The communication system between the bridge and the steering gear compartment should be operated
考题
单选题A vessel is “engaged in fishing” when（）.A
her gear extends more than 100 meters from the vesselB
she is using any type of gear，other than linesC
she is using fishing apparatus which restricts her maneuverabilityD
she has any fishing gear on board
考题
单选题Chafing gear is used to（）.A
anchor the boatB
pick up heavy loadsC
protect fiber rope from abrasionD
strengthen mooring lines
考题
单选题The required rudder angle is transmitted hydraulically or electrically from the steering wheel at the bridge to the （）at the steering gear, just above the rudder.A
transmitterB
tele-motorC
hydraulic ramD
hydraulic cylinder
考题
单选题In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the（）A
exhaust manifoldB
valve bridgeC
pressure of the fresh air chargeD
valve adjusting gear
考题
单选题Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）A
corrosion on the gearsB
excessive gear speedC
dirt in the oilD
misalignment of the gears
考题
单选题The oil in a cargo winch gear box should be sampled periodically to （）.A
prevent the gear box from leakingB
prevent the oil from becoming inflammableC
make sure it has not become contaminatedD
make sure the motor bearings are lubricated
考题
单选题When the steering gear is in operation, you should （）.A
check hydraulic oil levels every hourB
check the rams for overheatingC
check for excessive oil leakage from ramsD
drain water from telemotor cylinders each watch
考题
填空题Gear, though a great invention, is excluded from the author’s list because it doesn’t have independent function.____
考题
单选题With reference to rules governing steering gear, which one of the following rules is incorrect? （）A
It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliaryB
The auxiliary gear could be power operated in passenger shipsC
The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speedD
All moving parts of the steering gear must be guarded against any possible damage
考题
单选题The majority of cargo gear breakdowns are a result of（）.A
Guy failuresB
Topping lift failuresC
Bending of the boom from compressionD
Gooseneck failure
考题
单选题The switchboards for a-csystems differ from the d-cswitch gear in that the open type panels are generally（） and the dead-front switch gear is the common rule.A
permissiblyB
permissibleC
no permissibleD
not permissible
考题
单选题Always ensure that the turning gear is（）, even at the quay, the wake from other ships may turn the propeller and thus the engine.A
disengagedB
engagedC
assembledD
disassembled
考题
单选题When an engine is starting and has got a sufficiently high speed, say about 20 rpm,（）A
the starting air supply is cut off and fuel is injected into the cylindersB
the fuel feeding is cut off and the turning gear is put inC
the starting air supply is cut off and turning gear is taken outD
the electric blower is shut down and fuel is injected into the cylinders
考题
单选题A spur gear pump should be operated with the discharge valves （）.A
slightly openedB
throttledC
fully openedD
halfway opened
热门标签
最新试卷