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
Excessive valve lash in an auxiliary diesel engine will cause the valves to open（）
A
later and close sooner
B
sooner and close later
C
sooner and close sooner
D
later and close later
参考答案
参考解析
解析：
暂无解析
更多 “单选题Excessive valve lash in an auxiliary diesel engine will cause the valves to open（）A later and close soonerB sooner and close laterC sooner and close soonerD later and close later” 相关考题
考题
If a diesel engine turned over freely but failed to start, the cause could be ________.A.water in the fuelB.cold lube oilC.excessive starting air pressureD.excessive fuel pressure
考题
单选题Worn main bearing will cause the compression ratio of an auxiliary diesel engine to（）A
increaseB
decreaseC
remain the sameD
increase on compression decrease on expansion
考题
单选题The shape of a cam on a diesel engine determines the valve’s （）A
point of openingB
speed of openingC
lift from its seatD
all of the above
考题
单选题White smoke issuing from the exhaust of an auxiliary diesel engine valve opening （）A
the engine is overloadedB
the engine is coldC
there is too much lube oil in the cylindersD
the turbocharger is fouled
考题
单选题Due to excessive water in the fuel, a diesel engine fails to startBefore the engine can be started, the water must be removed from the （）.A
fuel pumpsB
cylindersC
fuel strainersD
all of above
考题
单选题Excessive lubricating oil consumption in a running diesel engine can be caused by （）A
clogged lube oil pipingB
excessive valve-guide clearanceC
high lube oil viscosityD
low lube oil temperature
考题
单选题If a single cylinder relief valve on a diesel engine lists frequently while the engine is running, the cause may be an （）A
excessively late injection timing for each cylinderB
incorrectly adjusted intake valve timingC
incorrectly adjusted fuel injectorD
incorrectly adjusted intake valve clearance
考题
单选题The size of the exhaust valve opening is （）A
most critical in a four-stroke cycle diesel engineB
most critical in a two-stroke/cycle diesel engineC
most critical in a four-stroke/cycle diesel engine if it is turbochargedD
of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
考题
单选题A diesel engine fails to start due to excessive water in the fuelBefore the engine can be started, the water should be removed from the（）A
fuel linesB
lube oil filterC
crank case pumpD
rocker arm reservoir
考题
单选题Worn diesel engine intake valve guides can result in （）A
increased engine breathing efficiencyB
excessive valve lashC
excessive lube oil consumptionD
lower than normal fuel consumption
考题
单选题Diesel engine air start valve timing is controlled by（）A
engine operating speedB
an air manifoldC
a hydraulic distributorD
individual cams and valve gear
考题
单选题Diesel engine piston ring blow-by is usually caused by excessive ring clearance at the ring（）A
backB
sideC
gapD
bottom
考题
单选题Icreasing the exhaust valve tappet clearance of a diesel engine will result in the exhaust valve opening （）A
later and closing earlierB
later and closing laterC
earlier and closing earlierD
earlier and closing later
考题
单选题If you were inspecting the valve springs on an auxiliary diesel engine, your best indication of impending spring failure would be （）A
a glazed surface on the springB
nicks in the protective coatingC
a build up of sludge depositsD
cracks in the surface of the spring
考题
单选题Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.A
increasing the volume of intake airB
shutting off the fuel supplyC
increasing the engine back pressureD
over-speeding the engine
考题
单选题The purpose of the flywheel of a diesel engine is to （）.A
counterbalance the crank throws on the crankshaftB
keep the engine running smoothly between power strokeC
provide a belt-driving surface for the operation of auxiliary machineryD
prevent the engine from overspeeding
考题
单选题In a four-stroke/cycle diesel engine, badly worn intake valve guides can cause excessive（）.A
exhaust pressureB
exhaust temperaturesC
cooling water temperaturesD
lube oil consumption
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In an auxiliary diesel engine, the reason for knurling the piston skirt is to（）A
improve skirt lubricationB
allow for expansionC
transmit forces evenlyD
improve the piston seal
考题
单选题A loud clicking noise from the valve compartment of an operating diesel engine would indicate（）A
worn valve seatsB
worn main bearingC
excessive valve clearanceD
weak rocker arm springs
考题
单选题If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）A
check the air filter for obstructionB
check for an exhaust leakC
check the exhaust temperatureD
secure the engine
考题
单选题A Kort nozzle is a(n)（）.A
hollow tube surrounding the propeller used to improve thrustB
nozzle attached to a firefighting hoseC
intake valve on a diesel engineD
piston cylinder on a diesel engine
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
考题
单选题In a diesel engine, an extremely leaking exhaust valve can cause （）.A
misfiringB
pre-ignitionC
interrupted scavengingD
reduced scavenging
考题
单选题The timing of diesel engine air starting valves is controlled by（）A
the air start valve timing gears and rodsB
a cylinder check valveC
individual cams and valve gearD
an air manifold poppet valve
热门标签
最新试卷
