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
An overcorrecting and unstable engine governor operation is known as（）.
A
droop
B
dead banding
C
dash potting
D
hunting
参考答案
参考解析
解析：
暂无解析
更多 “单选题An overcorrecting and unstable engine governor operation is known as（）.A droopB dead bandingC dash pottingD hunting” 相关考题
考题
If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will .A.have a larger than normal dead bandB.produce excessive speed response to a load changeC.respond slowly to any change in engine loadD.stabilize engine speed at the new governor setting
考题
For most diesel propulsion and generator engines, the over-speed trip device will stop the engine byA.moving the governor control to stopB.shutting off the lubricating oil supplyC.tripping the governor emergency stop leverD.shutting off the fuel supply
考题
In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.A.governor droopB.speeder spring tensionC.fuel rack lagD.load on the engine
考题
A governor automatically controls engine speed by regulating ___ .A.fuel supplyB.firing orderC.engine loadD.oil level
考题
单选题The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.A
principleB
principalC
causeD
case
考题
单选题When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will（）A
reduce fuel feedingB
increase fuel feedingC
keep original fuel feedingD
be overspeed
考题
单选题If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）A
have a larger than normal dead bandB
produce excessive speed response to a load changeC
respond slowly to any change in engine loadD
stabilize engine speed at the new governor setting
考题
单选题Proper operation of the main engine reduction gear set requires the operation to monitor （）A
the sump oil levelB
oil flow sight glassesC
bearing temperaturesD
all of the above
考题
单选题The purpose of the compensating adjustment used in a diesel engine hydraulic governor is to （）A
compensate for low oil levelB
increase governor promptnessC
prevent governor huntingD
limit engine load
考题
单选题For most diesel propulsion and generator engines, the over-speed trip device will stop the engine by （）A
moving the governor control to stopB
shutting off the lubricating oil supplyC
tripping the governor emergency stop leverD
shutting off the fuel supply
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In describing engine operation, what does the term “cycle” mean?（）A
The sequence of events that produce a power pulseB
One rotation of the engine crankshaftC
One stroke of a pistonD
All of the above
考题
单选题The device used to limit engine torque at various engine speeds is called a （）A
speed limiting governorB
variable speed governorC
constant speed governorD
load limiting governor
考题
单选题To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should （）.A
increase the governor oil pressureB
adjust the speed droop settingC
adjust the speeder spring travelD
adjust the compensating needle valve
考题
单选题The governor of a generator engine is to （）.A
make the engine stopB
regulate the timing of camshaftsC
make the rpm stabilize at any required valueD
make the engine run at nearly constant speed
考题
单选题（） are commonly used in mechanical-hydraulic governor（调速器） to sense engine speeds.A
BulbsB
BulksC
FlyweightsD
Flywheels
考题
单选题Defective governor in a diesel engine may lead to （）.A
smoky exhaustB
starting failureC
ignition relayD
over speed
考题
单选题The load limitation of governor should be reduced when ship navigating at sea, the main reason is to（）A
prevent the diesel engine surgingB
prevent governor from being damaged because of swingC
reduce the probability of the crank shaft being torsional vibrated and resonatedD
prevent the main engine being overload or overspeed
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Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.A
increaseB
decreaseC
fluctuateD
remain constant
考题
单选题The quality of the fuel oil and lube oil （）, Im afraid.A
has much to do with the operation of the engine and its lifeB
have much to do with the operation of the engine and its lifeC
has much doing with the operation of the engine and its lifeD
have much doing with the operation of the engine and its life
考题
单选题On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the （）A
accumulator spring compressorB
balance pistonC
compensating needle valveD
proportional piston
考题
单选题Maximum horsepower of a diesel engine is attained （）.A
when the engine RPM is pulled down by overloadB
at rated engine RPMC
at 95 % of rated engine RPMD
at 95 % of a properly adjusted governor RPM with the engine under full load
考题
单选题One of the differences between a two-stroke engine and a four-stroke engine is,（）A
a two-stroke engine works without exhaust operationB
a two-stroke engine works without compression strokeC
a two-stroke engine works without expansion strokeD
a two-stroke engine works without suction operation
考题
单选题Which is false about engine trials?（）A
engine trails should be done after finishing the operation of turning the engine with the turning gear and starting the engine on air brieflyB
in the operation of engine trails, the main engine should be running in low-speedC
As to the ship equipment with twin main engine, engine trials should be done with one engine ahead and another engine astern at the same timeD
the order “engine trials” should be given by the bridge
考题
单选题The ability of the governor to prevent fluctuations in engine speed is termed （）.A
sensitivityB
stabilityC
promptnessD
speed droop
考题
单选题An overcorrecting and unstable engine governor operation is known as（）.A
droopB
dead bandingC
dash pottingD
hunting
考题
单选题On a diesel engine equipped with an isochronous governor, if the “speed droop” control is reduced to the “zero” setting, the engine （）A
speed will drop drastically with any increase in loadB
will stop due to zero fuel supplyC
will stall upon application of loadD
speed will remain fairly constant despite load changes
热门标签
最新试卷
