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)
A wobbling tail shaft is an indication of ______.
A.shallow water
B.an engine that is misfiring
C.a tight tail shaft gland
D.worn stern bearing or misalignment
参考答案
更多 “ A wobbling tail shaft is an indication of ______.A.shallow waterB.an engine that is misfiringC.a tight tail shaft glandD.worn stern bearing or misalignment ” 相关考题
考题
A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/anA.turbocharger malfunction or failureB.crankcase exhauster overloadC.overload on the intercoolerD.obstruction in the engine cylinders
考题
During the dock repair,______should be measured firstly before tail shaft drawn out.A.the sinking of tail shaftB.the clearance of stern bearingC.the total flexure of shaftD.main engine crankshaft deflection
考题
Which of the following is operated from the main engine room console on an automated vessel?A.Fire pump and lube oil pumpB.Lube oil pump and distilling plantC.Distilling plant and shaft alley doorD.Shaft alley door and fixed CO2 release
考题
When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB.The stern bearing alignment with the stern frame should be checkedC.The interior of the stern tube should be inspected for leaksD.The shaft liner should be removed and inspected for cracks
考题
Which of the following statements represents an advantage of an electromagnetic clutch?A.Large misalignments can be tolerated between the shaft and engine couplingB.Slip is held to a minimum when reversing shaft rotationC.Engine torsional vibrations to the driven shaft are eliminatedD.It aids in maintaining power factor
考题
单选题Which of the following nondestructive testing methods can be used to detect a suspected subsurface defect in a tail-shaft liner?()A
Dye penetrantB
Magnetic particleC
UltrasonicD
All of the above
考题
单选题Which of the following statements represents an advantage of an electromagnetic clutch?()A
Large misalignments can be tolerated between the shaft and engine couplingB
Slip is held to a minimum when reversing shaft rotationC
Engine torsion vibrations to the driven shaft are eliminatedD
It aids in maintaining power factor
考题
单选题Excessive diesel engine back pressure may be an indication of ()A
carbon buildup in the exhaust manifoldB
overcooling of the exhaust manifoldC
eroded muffler baffle platesD
high injection pressure
考题
单选题During the dock repair, should be measured firstly before tail shaft drawn out()A
the sinking of tail shaftB
the clearance of stern bearingC
the total flexure of shaftD
main engine crankshaft deflection
考题
单选题When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?()A
The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB
The stern bearing alignment with the stern frame should be checkedC
The interior of the stern tube should be inspected for leaksD
The shaft liner should be removed and inspected
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A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dock.Which of the following inspection should be made when the tail-shaft has been drawn?()A
The overall condition of the bearing surface should be examinedB
The shaft liner should be inspected for cracks and tested to insure a tight fitC
The stern tube should be tested for cracks with dye penetrantD
all of above
考题
单选题Small crack in the crankshaft bearing surface of a diesel engine are an indication of()A
corrosion frettingB
insufficient lubricationC
abnormal wearD
fatigue failure
考题
单选题The load limitation of governor should be reduced when ship navigating at sea, the main reason is to()A
prevent the diesel engine surgingB
prevent governor from being damaged because of swingC
reduce the probability of the crank shaft being torsional vibrated and resonatedD
prevent the main engine being overload or overspeed
考题
单选题One of the factors limiting the amount of load which can be put on a modern marine diesel engine is the ()A
governor sensitivityB
exhaust temperatureC
fuel injection pressureD
speed of the can shaft
考题
单选题Bedplates are the () of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.A
hullB
projectionC
graphitizationD
foundation
考题
单选题On a large diesel engine installation, crankshaft axial alignment is maintained by the ()A
piston rod guidesB
engine thrust bearingC
crosshead bearingD
main shaft flexible coupling
考题
单选题What is the best indication of the loading of a diesel engine?()A
Oil temperatureB
Manifold pressureC
Exhaust gas temperatureD
Fuel consumption
考题
单选题Exhaust pyrometer readings provide an indication of the ()A
effectiveness of water-cooled exhaust elbowsB
distribution of the load between engine cylindersC
amount of fuel penetration into the engine cylindersD
indicated horsepower of the engine cylinders
考题
单选题A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/an()A
turbocharger malfunction or failureB
crankcase exhauster overloadC
overload on the intercoolerD
obstruction in the engine cylinders
考题
单选题While in drydock your vessel will be belt-gauged.This process involves().A
measuring the thickness of the tail shaft linerB
taking the vessel's offsets to check for hull deformationC
testing and examining the anchor cables for defective linksD
drilling or sonic-testing the hull to determine the plate thickness
考题
单选题Water accumulation in the cylinder of a secured engine is an indication that the ()A
soft water pump was not secured along with the engineB
jacket water thermostat has failedC
cylinder liner may be crackedD
raw water pump is over-speeding just prior to engine shutdown
考题
单选题During the dock repair, when installing the tail shaft and propeller, who should be on the spot to supervise?()A
chief engineerB
the engineerC
captainD
any member of the engine department
考题
单选题A wobbling tail shaft is an indication of().A
shallow waterB
an engine that is misfiringC
a tight tail shaft glandD
worn stern bearing or misalignment
考题
单选题An indication of an overloaded main propulsion diesel engine is ()A
white smoke in the exhaustB
high exhaust gas pyrometer readingsC
sparks in the exhaustD
blue smoke in the exhaust
考题
单选题During the deck repair,() should be measured firstly before tail shaft is drawn out.A
the sinking of tail shaftB
the clearance of stern bearingC
the total flexure of both end bearingD
main engine crankshaft deflection
考题
单选题With() the engine need not to be aligned with reduction gears or propeller shaft.A
Diesel engine propulsionB
Diesel electric propulsionC
Steam engine propulsionD
Gas turbine propulsion
热门标签
最新试卷