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 plunger may be rotated in the barrel by a rack and （） on a sleeve which is keyed to the plunger.
A
pinion arrangement
B
push rod
C
handle bar
D
cam device
参考答案
参考解析
解析：
暂无解析
更多 “单选题The plunger may be rotated in the barrel by a rack and （） on a sleeve which is keyed to the plunger.A pinion arrangementB push rodC handle barD cam device” 相关考题
考题
The plunger in a jerk pump is rotated until the release port is uncovered If the port remains uncovered all of the time, which of the listed operations will occur?A.No fuel will be deliveredB.The maximum effective stroke will be attainedC.The fuel delivered to the cylinder will be excessiveD.The injection nozzle will overheat and carbonize
考题
As the plunger moves upwards in the barrel, injection will commence once the plunger bas_______the spill ports and the pressure builds up.A.opened upB.closed offC.lined upD.taken off
考题
The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.A.varying the pump discharge pressureB.varying the pump return pressureC.rotation of the pump plungerD.rotation of the pump barrel
考题
Some villagers were going to celebrate an important wine festival（酒宴）in a few days′time,so?they borrowed a huge barrel from the nearest town,put it in the village square,and decided that each?of them should empty a bottle of the best wine he had into it,so that there should be plenty at the?feast（宴会）.
One of the villagers thought he would be very clever."If I pour a bottle of water in,instead of?wine,no one will notice it,"he said to himself,"because there will be so much excellent wine in the?barrel that?the water will be lost in it."
The night of the feast arrived.Everybody gathered in the village square with their bowls and?their glasses for the wine.The tap（塞子）on the barrel was opened,but what came out was pure?water.Everyone in the village had had the same idea.
One of the villagers poured a bottle of water into the barrel because__________.A.the wine in the barrel was too thick
B.the others put water into it too
C.he was cleverer than the others
D.he tried to cheat the others
考题
When installing a server in a rack， which of the following locations describes where in the rack a server should be installed？（）A、On the very bottom U of the rack， with the UPS above the serverB、In the middle of the rack to help balance the rackC、Closest to the bottom of the rack， above heavier equipmentD、On the very top U of the rack， with the UPS directly below it
考题
Which of the following server chassis types allows for the HIGHEST server density in a rack？（）A、Blade serverB、Tower converted to rack serverC、Tower serverD、Rack server
考题
Which is the packaging strategy of iDataPlex of the following？（）A、Fourteen servers per rack likeBladeCenterB、Two servers per rack for optimal cooling costC、One server per rack for optimal cooling and energy efficiencyD、Four servers per rack （twoexach half high） for optimal cooling
考题
单选题In a jerk pump, the amount of fuel that will be forced through the spray nozzle on each upward stroke of the plunger depends on （）A
the pump supply pressureB
the slope of the fuel camC
how the plunger is rotatedD
the number of sleeve segments engaged with the rack
考题
单选题Movement of the pump control rack in a fuel injection system using individual plunger-type pumps （）A
changes the position of the fuel inlet portsB
changes the length of the pump strokeC
varies the quantity of fuel deliveredD
varies the compression of the delivery valve spring
考题
单选题The plunger is machined to very fine tolerances, as is the matched（）in which it reciprocates.A
barrelB
ramC
pistonD
rod
考题
单选题When installing a server in a rack， which of the following locations describes where in the rack a server should be installed？（）A
On the very bottom U of the rack， with the UPS above the serverB
In the middle of the rack to help balance the rackC
Closest to the bottom of the rack， above heavier equipmentD
On the very top U of the rack， with the UPS directly below it
考题
单选题A customer has a p650 on order and plans to put it in a current OEM rack. They are concerned that the p650 power supply may demand more current than the OEM PDU can provide. Which planning guide specification would provide the necessary requirements？（）A
VoltageB
FrequencyC
Power Source Loading （max）D
Power Source Loading （typical）
考题
单选题Diesel engine injection lag is caused by（）A
compressibility of the fuelB
high fuel oil supply flowC
scored plunger and barrel packingD
excessive air turbulence
考题
单选题The plunger may be rotated in the barrel by a rack and （） on a sleeve which is keyed to the plunger.A
pinion arrangementB
push rodC
handle barD
cam device
考题
单选题In a unit injector the amount of fuel that will be forced through the spray nozzle on each stroke of the plunger depends on （）A
the pump supply pressureB
the slope of the fuel camC
how the plunger is rotatedD
the number of sleeve segments engaged with the rack
考题
单选题In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.A
cranesB
windlassC
capstansD
mooring winches
考题
单选题A virtual rise in the center of gravity of a ship may be caused by（）.A
filling a partially filled tankB
using fuel from a pressed fuel tankC
emptying a partially filled tankD
transferring pipe from the setback area to the pipe rack
考题
单选题The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the （）A
fuel delivery pressureB
pump plunger diameterC
plunger control rack positionD
total pump stroke
考题
单选题With reference to an axial piston pump, which one of the following statements is true?（）A
The cylindrical barrel is coupled to the motorB
The cylindrical barrel has an odd number of boresC
The bores end in socketsD
The sockets fit in the swash plate
考题
单选题When disassembling or assembling an injection pump plunger and barrel you should （）A
keep the parts immersed in diesel fuelB
always keep the plunger and barrel togetherC
work over a linoleum-type surfaceD
all of the above
考题
单选题Because of the close tolerances used in diesel engine fuel oil pumps, a worn plunger requires（）A
grinding the spare plunger to the barrelB
replacing the plunger and the barrelC
highly polishing both the plunger and barrelD
replacing plunger only
考题
单选题As the plunger moves upwards in the barrel, injection will commence once the plunger has （） the spill ports and the pressure builds up.A
opened upB
closed offC
lined upD
taken off
考题
单选题If the plunger or barrel of a fuel injection jerk pump becomes damaged,（）A
only the replacement of the entire pump would be acceptableB
the injection pump and injection nozzle must be replacedC
either the barrel or plunger must be replacedD
the barrel and plunger must be replaced as a unit
考题
单选题The amount of fuel delivered by a helical plunger fuel injection pump is controlled by （）A
varying the pump discharge pressureB
varying the pump return pressureC
rotation of the pump plungerD
rotation of the pump barrel
热门标签
最新试卷