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
A spring-loaded centrifugal flyweight governor responds to reduced engine load with an immediate increase in ()
A
pilot valve oil pressure
B
speeder spring force
C
compensation needle valve clearance
D
centrifugal force on the flyweights
参考答案
参考解析
解析:
暂无解析
更多 “单选题A spring-loaded centrifugal flyweight governor responds to reduced engine load with an immediate increase in ()A pilot valve oil pressureB speeder spring forceC compensation needle valve clearanceD centrifugal force on the flyweights” 相关考题
考题
A Narrative Nurses’ notes contain . ()
A. any change of the patient’s conditionB. a new problem of a patientC. a patient’s responds to a treatmentD. a patient’s responds to your teaching
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
An administrator tries to change the checksum_offload setting on ent0, but the chdev command responds that the adapter is busy.What can be done to resolve this?()
A.Use chdev with -P flag and run cfgmgr.B.Use chdev with -R flag and run cfgmgr.C.Use chdev with -P flag and reboot the system.D.Use chdev with -R flag and reboot the system.
考题
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ______.A.dirtB.fuel oilC.governor cooling waterD.fuel oil tar(焦油)
考题
An administrator tries to change the checksum_offload setting on ent0, but the chdev command responds that the adapter is busy. What can be done to resolve this?()A、Use chdev with -P flag and run cfgmgr.B、Use chdev with -R flag and run cfgmgr.C、Use chdev with -P flag and reboot the system.D、Use chdev with -R flag and reboot the system.
考题
单选题With respect to centrifugal pump impellers, which of the following descriptions represents the correct centrifugal pump classification? ()A
Single stage or multistageB
High pressure or low pressureC
Open or close coupledD
Horizontal or vertical
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Which one is not the component of a typical, marine pattern self-contained unit?()A
a centrifugal fanB
a direct expansion coolerC
a hermetic compressorD
a centrifugal pump
考题
单选题The most common contaminate of governor hydraulic fluid is ().A
moistureB
dirtC
acidD
air
考题
单选题Where is the cooling water from the compensating tank in the cooling water system of main engine lead to?()A
discharge side of the centrifugal pumpB
suction side of the centrifugal pumpC
the lowest point of the cooling water systemD
inlet of the main engine
考题
单选题In a simple mechanical governor, the ()A
centrifugal force rotates the ball-headB
flyweight centrifugal force is balanced by spring forceC
flyweight centrifugal force is balanced by hydraulic pressureD
speeder spring alone actuates the fuel control rod
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Most fuel injection nozzles are opened by ().A
fuel oil pressureB
a cam operated followerC
a spring-loaded pressure plateD
timing gears keyed to the crankshaft
考题
单选题An increase in crankcase pressure generally indicates()A
worn connecting rod bearingsB
worn engine cylinder linersC
high cylinder firing pressureD
stuck spring-loaded manhole covers
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Which of the items listed causes a direct acting mechanical governor to operate the engine fuel control linkage?()A
Hydraulic oil pressureB
Servomotor actionC
Flyweight centrifugal forceD
Relay motion
考题
单选题Your network contains a DNS server named DNS1 that runs Windows Server 2008 R2.You need to ensure that DNS1 only responds to DNS queries from computers that are located in the same subnet.What should you configure?()A
Interfaces from DNS ManagerB
Security from DNS ManagerC
Trust AnchorsD
Windows Firewall
考题
单选题If two AC generators are to be operated in parallel, the load is distributed evenly by()A
means of rheostat the governor settingsB
a balance coil excitationC
adjusting the governor settingsD
changing excitation
考题
单选题Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to ().A
react with insufficient speed droopB
fail to react to small speed changesC
have excessive sensitivity to small speed changesD
remain in the neutral position
考题
单选题The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by()A
governor flyweight action on a pilot valve which controls fuel injectionB
governor flyweight motion acting on fuel controls through suitable linkageC
positioning a butterfly valve in the fuel delivery system positioningD
a servomotor piston attached to the fuel controls
考题
单选题Which of the following actions should be taken if during a routine maintenance inspection of a centrifugal pump, localized scoring on a pump shaft sleeve is detected?()A
Correct the cause of the scoring and repair the sleeve or replace with a new oneB
Reassemble the unit and provide more water leak off for proper lubricationC
Check for parallel alignment of the sleeve radial faces to the sleeve boresD
Reassemble the unit and adjust the governor to obtain a slower speed
考题
单选题If two A.C.generators are to be operated in parallel, the load is distributed evenly by()A
means of rheostat the governor settingsB
a balance coil excitationC
adjusting the governor settingsD
changing excitation
热门标签
最新试卷