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）
If a gasoline engine turns over freely but will not start，the cause is generally ______．
A.A defective ignition system
B.Low lube oil level
C.Weak valve springs
D.Too heavy a load
参考答案
更多 “ If a gasoline engine turns over freely but will not start，the cause is generally ______．A.A defective ignition systemB.Low lube oil levelC.Weak valve springsD.Too heavy a load ” 相关考题
考题
Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to _____________.A.higher speed requiredB.flywheel-effectC.lower starting temperaturesD.higher compression pressures
考题
199 During extremely cold weather, while starting an engine,it turns too slowly and fails to start.This problem is most likely theresult of()
A.high fuel oil viscosityB.low fuel oil temperatureC.high lube oil viscosityD.energized alow plugs
考题
In the navigation,_______cause the shafting over load most easilyA.stopping the main engine suddenlyB.changing the main engine running direction suddenlyC.the sailing from the shallow water area to the deep water areaD.the ship's trim too much
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
If the engine does start on air, but combustion does not immediately begin, the cause may be _____.A.failure of the fuel pumpsB.starting air pressure too lowC.stop valve in air line closedD.the turning gear still engaged
考题
Which of the following is the stated proper sequence before commencing cargo operations aboard Ro-Ro vessels?A.Start ventilation，lower the ramp，notify engine roomB.Lower the ramp，start ventilation，notify engine roomC.Notify engine room，lower the ramp，start ventilationD.Start ventilation，notify engine room，lower the ramp
考题
单选题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In the navigation（） cause the shafting over load easily.A
the stopping engine suddenlyB
the sailing astern and changing direction suddenlyC
the sailing from the shallow water area to the deep water areaD
the ship’s trim too much
考题
单选题If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be （）A
excessive compression pressureB
air in the fuel linesC
high fuel pressureD
excessive load
考题
单选题Leaking oil seals on a diesel engine turbocharger can cause（）A
the engine to run after the fuel has been securedB
the engine to over-speedC
a fireD
all of the above
考题
单选题In the navigation, cause the shafting over load most easily（）A
stopping the main engine suddenlyB
changing the main engine running direction suddenlyC
the sailing from the shallow water area to the deep water areaD
the ship’s trim too much
考题
单选题What determines the number of events occurring in a cycle of operation in an internal combustion engine?（）A
Crankshaft revolutionB
Type of engine (diesel or gasoline)C
Distance a piston travels during a strokeD
Number of pistons
考题
单选题Which cause of the following can lead to the engine not to start on air?（）A
starting air pressure too highB
correct timing of starting air valvesC
three of the starting valves stuckD
the turning gear disengaged
考题
单选题A diesel engine fails to start because of water in the fuelIn order to start the engine, you should （）?A
turn engine with jacking gearB
drain filters and strainers and bleed off water at each injection pumpC
use ether to start the engine with blow-down valves openD
blow through the cylinders and fuel lines with a drying agent
考题
单选题Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to（）A
higher speed requiredB
flywheel-effectC
lower starting temperaturesD
higher compression pressures
考题
单选题If a gasoline engine turns over freely but will not start，the cause is generally（）.A
a defective ignition systemB
low lube oil levelC
weak valve springsD
too heavy a load
考题
单选题When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）A
starting air pressureB
scavenge air pressureC
over-speed tripD
banjo oiler line
考题
单选题Which of the following may cause that an engine doesnt run on starting air?（）A
too low starting air pressureB
main start valve closedC
neither A nor BD
A and B
考题
单选题If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.A
low compressionB
failure of the fuel pump to discharge fuelC
incorrect timing of fuel pumpD
turning gear being still on
考题
单选题A diesel engine is similar to a gasoline engine except that the former has no （）.A
cross-headB
cylinderC
connecting rodD
spark plug
考题
单选题If a diesel engine turned over at normal cranking speed but failed to start, the cause could be late fuel injection or （）A
excessive fuel pressureB
high lube oil viscosityC
inadequate fuel injectionD
excessive starting air pressure
考题
单选题“The engine not obtaining the sufficient speed for firing” means that （）.A
the start failsB
the fuel pumps will be put into operationC
the fuel valves are damagedD
the combustion process will take over
考题
单选题If the engine does start on air, but combustion does not immediately begin, the cause may be （）.A
failure of the fuel pumpsB
starting air pressure too lowC
stop valve in air line closedD
the turning gear still engaged
考题
单选题When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）A
an obstruction in an cylinderB
water accumulation in some engine cylindersC
low starting air pressureD
low scavenge air pressure
考题
单选题According to the relevant regulation, lifeboat should be powered by（）.A
inboard diesel engineB
outboard diesel engineC
outboard gasoline engineD
inboard gasoline engine
考题
单选题Following an overhaul of a crosshead type diesel engine, the engine is jacked over with the turning gear as part of the pre-start procedure, which of the listed pre-start procedures should be carried out?（）A
Ensure proper cylinder lube oil flowB
Open all air space drain cocksC
Open all indicator valvesD
all of the above
考题
单选题To find the cause of a gasoline engine’s failure to start，you should（）.A
Break the joint in the fuel line at the engine and let the gas run in the bilgesB
Disconnect the wires at the spark plugs and make the spark jump the gapC
Prime the engine with ether through spark plug openingsD
Ventilate the space，then check the battery，spark plugs，carburetor，and fuel line
热门标签
最新试卷