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
One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the ()
A
crankcase
B
piston
C
cylinder liner
D
crank cheek
参考答案
参考解析
解析:
暂无解析
更多 “单选题One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the ()A crankcaseB pistonC cylinder linerD crank cheek” 相关考题
考题
One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuel supply to that cylinder is secured.Which of the following problems may be the cause?A.Low loading of the cylinderB.Excessive cooling of that pistonC.Sluggish ring action on the pistonD.A mechanical defect in a working part
考题
Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be caused by______.A.using fuel oil with low cetane numberB.a badly worn piston pinC.a loose flywheel keyD.a loose bed plate bolt
考题
单选题Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?()A
Excessive cylinder linerB
water in the fuel systemC
Cracked cylinder linerD
Leaking lube oil cooler
考题
单选题Air scavenging of a diesel engine cylinder()A
blows out the exhaust gasesB
supplies oxygen for combustionC
cools the valves and cylinder wallsD
all of the above
考题
单选题A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to ()A
feel the high pressure fuel lineB
check the cylinder exhausts for white smoke frequentlyC
check the cylinder exhaust temperatureD
isolate each cylinder and inspect the injector
考题
单选题Diesel engine cylinder head test cocks are used to()A
check cylinder lubrication prior to starting engineB
connect exhaust gas analyzers to determine engine efficiencyC
pressure test cylinder heads to check for leaksD
remove moisture accumulations from cylinder prior to starting
考题
单选题Which of the following procedures should be carried out when a large, low-speed, diesel engine is operated with one cylinder secured?()A
Lubrication to the defective cylinder should be increasedB
Cooling water temperature to the engine should be increasedC
Only the turbocharger speed should be reducedD
Engine speed should be reduced
考题
单选题A drop in compression pressure in one cylinder of a diesel engine can be caused by()A
a leaking fuel injection nozzleB
a clogged air filterC
early fuel injectionD
burned valves
考题
单选题The most practical way of detecting an overload in one cylinder of an operating large, low-speed ,main propulsion diesel engine is to ()A
check the cylinder exhausts for black smokeB
listen for combustion knock in that cylinderC
isolate each cylinder and inspect the injectorD
check the cylinder exhaust temperature frequently
考题
单选题One end of a cylinder for a medium or high-speed diesel engine is sealed by the piston and rings, the other end is sealed by the ()A
crankcaseB
cylinder headC
valve coverD
engine frame
考题
单选题In the construction of a diesel engine, what is the purpose of end plates?()A
To provide accessibility to the cylinder linersB
To add stability to the engine blockC
To add rigidity to the block and a surface for attaching other partsD
To make a surface for the base
考题
单选题Broken intake valve springs on one cylinder of a diesel engine can cause the engine to ()A
Over speedB
fire improperlyC
lose oil pressureD
overheatrapidly
考题
单选题A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an ()A
increase in engine speedB
increase in cylinder turbulenceC
leaking needle valveD
reduction in cylinder turbulence
考题
单选题If water is found in the crankcase of a diesel engine, the cause may be due to()A
a cracked cylinder headB
a leaky cylinder head gasketC
a cracked cylinder linerD
any of the above
考题
单选题Persistent knocking of one cylinder of a diesel engine ceases when the fuel supply to that cylinder is securedThis problem may be a result of ()A
low loading of that cylinderB
faulty combustion in that cylinderC
sluggish piston ring actionD
excessive piston cooling
考题
单选题Persistent knocking in one cylinder of a diesel engine could be caused by().A
a low load on that cylinderB
sluggish piston ring actionC
excessive piston crown coolingD
excessive clearance of piston pin
考题
单选题One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an ()A
decrease in ignition lagB
increase in fuel economyC
reduction in lube oil viscosityD
increase in cylinder misfiring
考题
单选题A diesel engine is warmed up and white vapor is in the exhaust,this could indicate ()A
excessive cylinder lubricationB
a lugging engineC
a leaking cylinder linerD
overloading of one cylinder
考题
单选题A faulty injection in one cylinder of an operating diesel engine can be located by ()A
cutting out individual injectors and noting engine performanceB
checking lube oil temperatureC
checking cam positionD
using a timing light
考题
单选题One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to ()A
increase scavenge air pressureB
reduce fuel booster pump pressureC
adjust the fuel rackD
retard fuel injector timing
考题
单选题What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()A
Spark plugB
Heat of compressionC
CarburetorD
Glow plug
考题
单选题()uses one or two high pressure pumps for all the cylinders with one more standby, while()have a separate high-pressure pump for each cylinder.A
A common rail engine;conventional enginesB
A conventional engine;common rail enginesC
A marine diesel engine;most other enginesD
A two-stroke engine;four-stroke engines
考题
单选题If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be()A
on the power strokeB
on the exhaust strokeC
at the end of the power strokeD
at the start of the intake stroke
考题
单选题One of function of diesel engine lubricating oil is to ()A
induce carbon formation on cylinder wallsB
improve fuel penetration in the combustion spaceC
form a friction reducing film between mating surfacesD
lubricate the fuel injection
考题
单选题The function of diesel engine piston compression rings is to ().A
prevent piston side thrustB
prevent engine friction lossesC
transmit heat from the piston to the cylinder linerD
remove oil from the cylinder combustion space
考题
单选题Diesel engine cylinder head test cocks are used to ()A
check cylinder lubricationB
connect the pressure indicator pressureC
test cylinder headsD
connect the exhaust gas pyrometers
考题
单选题Compared to a naturally aspirated diesel engine, a supercharged diesel engine has()A
a cylinder air charge of higher pressureB
increased pumping lossesC
less valve overlapD
reduced blow-by
热门标签
最新试卷