题目内容
（请给出正确答案）
Late fuel oil injection in a diesel engine can result in ___.
A.fuel knock
B.increased power
C.low compression pressure
D.high exhaust temperature
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A.object
B.reject
C.inject
D.project
Springs in fuel injectors will become not strong enough to work because______.
A.the injector opens at a lower pressure than designed
B.the needle valve and seat wear out
C.the nozzle holes wear out
D.long time in use
A、Inject nitrogen into the entire oil and gas recovery system
B、Pressurize to 500Pa
C、Measure the residual static pressure change in the system within five minutes with a closed tester
D、The test result shall not be lower than the limit value
A.filter to remove the fuel oil
B.use the settler to remove the fuel oil
C.remove the fuel oil by centrifuging
D.drain and then renew the lube oil supply
A.I
B.I．II．III
C.II．III
D.II
The safe rate of bunkering heavy fuel oil is directly related to the _____.
A.type of fuel transfer pump aboard
B.temperature of the fuel oil being received
C.size of the fuel storage tanks ashore
D.distance from the fuel oil storage tanks ashore
Which of the followings will affect the spray of fuel oil？
A.coke deposits
B.cylinder water temperature
C.asphalt in fuel oil
D.lub oil
A. is scavenged
B. is atomized with fuel oil
C. be scavenged
D. be atomized with fuel oil
A.cold fuel oil
B.low fuel oil pressure
C.low atomizing steam pressure
D.water in the fuel oil
Fuel pump index is _____.
A.the viscosity index
B.the fuel oil contents
C.the starting speed
D.the reading at the rack
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