海船船员考试
单选题Lubricating oil viscosity in an operating diesel engine can be reduced by（）A increasing cooling water flowB increasing lube oil flowC dilution by fuel oilD adding SAE 70 oil
题目
increasing cooling water flow
increasing lube oil flow
dilution by fuel oil
adding SAE 70 oil
相似问题和答案
第1题：
A dirty diesel engine oil filter element can best be detected by ______.
A.visual inspection of the elements
B.the pressure drop across the filter
C.high lube oil sump temperature
D.decrease in oil viscosity from the filter
第2题：
water in the fuel
insufficient fuel for combustion
clogged air intake passages
burning lubricating oil
第3题：
A diesel engine exposed to widely varying ambient temperatures should use to a lubricating oil with .
A.a high viscosity index
B.a low viscosity index
C.neutralize acids
D.resist oxidation at high temperatures
第4题：
clogged lube oil piping
excessive valve-guide clearance
high lube oil viscosity
low lube oil temperature
第5题：
to be kept
logged
changed
has remained
第6题：
visual inspection of the elements
the pressure drop across the filter
high lube oil sump temperature
decrease in oil viscosity from the filter
第7题：
runs out of fuel
has low lubricating oil pressure
exceeds a set maximum speed
has high cooling water temperature
第8题：
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .
A.all of the oil used by the engine through a filter
B.some of the oil used by the engine through a filter
C.some of the oil used by the engine through a centrifuge
D.all of the oil used by the engine through a centrifuge
第9题：
oil spray
oil bath
oil control rings
drilled passage through the camshaft
第10题：
Hydraulic stress and distortion will develop
Hot spots will develop
Fuel oil viscosity will increased
An increase in trapped deposits of scale and dirt