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
On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the ()
A
accumulator spring compressor
B
balance piston
C
compensating needle valve
D
proportional piston
参考答案
参考解析
解析:
暂无解析
更多 “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” 相关考题
考题
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure
考题
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .A.Reduce engine speed to idle before removing the filterB.Soak the dirty filter in kerosene onlyC.Blow out the air inlet with compressed airD.Cover the air inlet after removing the filter
考题
On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the______.A.accumulator spring compressionB.balance pistonC.compensating(补偿) needle valveD.proportional piston
考题
单选题()are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.A
Slow speed diesel enginesB
Medium-speed diesel enginesC
Steam enginesD
Gasoline engines
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Load control on a diesel engine is accomplished by ().A
regulating the speed of the turbochargerB
rotating the fuel injector pump plungerC
regulating the speed of the fuel oil transfer pumpD
changing engine timing
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A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a ().A
slow-speed dieselB
medium-speed dieselC
high-speed dieselD
constant-speed diesel
考题
单选题The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at()A
one half crankshaft speed in a two-stroke cycle diesel engineB
crankshaft speed in a two-stroke cycle diesel engineC
two times crankshaft speed in a two-stroke cycle diesel engineD
one-fourth times crankshaft speed in a four-stroke cycle diesel engine
考题
单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by ()A
increasing the quantity of starting airB
increasing the lube oil pressureC
heating the engine fuel supplyD
heating the engine coolant
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Defective atomizer in a diesel engine will lead to().A
smoky exhaustB
starting failureC
overloadD
over speed
考题
单选题In conventional systems, the injection pressure(), while it’s()in common rail diesel engines.A
fluctuates with the engine speed to some extent, independent of the engine speedB
keeps constant at all engine speed, dependent on the engine speed to some extentC
keeps constant at all engine speed, independent of the engine speedD
is decided by the engine speed, constant at all engine speed
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Main diesel engine control can be obtained by the bridge ()A
at any timeB
only after the engine room control station is switched to ‘bridge control’C
whenever the secondary station is switched to ‘bridge control’D
whenever the engine side control station is switched to ‘bridge control’
考题
单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?()A
Reduce engine speed to idle before removing the filterB
Soak the dirty filter in kerosene onlyC
Blow out the air inlet with compressed airD
Cover the air inlet after removing the filter
考题
单选题If a diesel engine rotates slowly when cranked, but does not fire, the()A
fuel control rack had admitted excessive fuelB
engine speed does not match the fuel rack settingC
engine has failed to reach its firing speedD
starter pinion and ring gear contact is not correct
考题
单选题Fuel injection uses the jet pump system and a Woodward type hydraulic () is used to control engine speed.A
controllerB
governorC
instrumentD
apparatus
考题
单选题A diesel engine is equipped with an isochronous hydraulic governorA decrease in load will cause the engine speed to ()A
decrease onlyB
increase onlyC
decrease slightly then returned to original speedD
increase slightly then returned to original speed
考题
单选题If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will ()A
decrease until the engine speed increasesB
increase as the load increasesC
decrease as the loadD
increases remain unchanged
考题
单选题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
单选题Which of the following adjustments is always required whenever the diesel engine governor oil has been drained and renewed?()A
speed droopB
compensationC
idle speed settingD
load limit control
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
考题
单选题A six-cylinder, two-stroke/cycle diesel engine is fitted with a rotary distributing air starting systemThe speed of the rotating distributor disc is ()A
one-half engine speedB
the same as engine speedC
twice engine speedD
four times engine speed
考题
单选题The hydraulic () is used to control engine speed.A
motorB
pumpC
governorD
capstan
热门标签
最新试卷