海船船员考试
单选题The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.A acidsB additivesC heatD gear
题目
acids
additives
heat
gear
相似问题和答案
第1题：
The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known as
A.mechanical lubricator
B.lubrication function
C.forced feed system
D.bearing lubrication
第2题：
Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?
A.accidental discharge of oil
B.disposal of oil residues
C.quantity of water produced by F.W.G
D.discharge of dirty ballast or cleaning water from fuel oil tanks
第3题：
The most crucial time for any bearing with regards to lubrication is
A.during low loads
B.after proper oil viscosity is reached
C.during starting
D.after cleaning filters
第4题：
during low loads
after proper oil viscosity is reached
during starting
after cleaning filters
第5题：
an oil seal
removing heat
a gas seal
cooling the piston
第6题：
Lubrication for the main reduction gears used with diesel engines is usually supplied by
A.oil from the main engine sump
B.an independent lube oil system
C.the stern bearing head tank
D.the stem bearing sump tank
第7题：
crankcase
low lube oil temperature
excessive oil consumption
low bearing oil pressure
第8题：
Crankcase explosions in propulsion diesel engines result from ____.
A.the splashing of lubrication oil by the crankshaft
B.the dilution of crankcase oil with particles of combustion
C.broken fuel lines spraying oil on the crankcase
D.the ignition of unburned fuel and air in the crankcase
第9题：
lube oil pump suction line
lube oil pump discharge line
bottom of the lube oil sump
outlet from the lube oil header
第10题：
reducing the erosion of the cargo tanks
increasing the total quantity of oil to carry
reducing the quantity of water contained in oil
reducing cargo discharged time