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
The governor of a generator engine is to ().
A
make the engine stop
B
regulate the timing of camshafts
C
make the rpm stabilize at any required value
D
make the engine run at nearly constant speed
参考答案
参考解析
解析:
暂无解析
更多 “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” 相关考题
考题
Which of the units listed is used to combust waste in the engine room?A.BoilerB.IncineratorC.Generator
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
A generator is prevented from becoming motorized by the use of a/an ______.A.over-speed tripB.reverse power relayC.back pressure tripD.governor controls
考题
An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine
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() 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 load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor ().A
load limit settingsB
idle speed settingsC
speed limit settingsD
speed droop settings
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 frequency of an AC generator is adjusted by means of the ()A
main alternator field rheostatB
exciter field rheostatC
prime mover governor controlD
equalizing reactor
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During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew ()A
the chief engineer must be informed at firstB
the captain must be informed at firstC
it must be taken by the duty engineerD
the generator engine must be stopped
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A diesel generator has just been paralleled with an AC turbo-generator, but the load can not be properly divided.This could be caused by()A
an incorrect diesel generator governor speed droop adjustmentB
a faulty reverse power relay within the main circuit breaker assemblyC
unsynchronized isochronous load distribution adjustmentsD
a different speed setting on each unit
考题
单选题Since the burning or combustion takes place within the engine itself, the engine is known as ().A
a fire -tube boilerB
an internal combustion engineC
an external combustion engineD
an internal combustion generator
考题
单选题The overspeeding of the diesel engine driving an electric generator could cause ().A
low voltage trip to tripB
reverse power trip to tripC
damage to windingsD
excessive exhaust temperatures
考题
单选题Overspeed of the diesel engine driving an electric generator could cause().A
low voltage tripB
reverse power tripC
damage to windingsD
excessive exhaust temperatures
考题
单选题The ability of the governor to prevent fluctuations in engine speed is termed ().A
sensitivityB
stabilityC
promptnessD
speed droop
热门标签
最新试卷