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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 injection
B
governor flyweight motion acting on fuel controls through suitable linkage
C
positioning a butterfly valve in the fuel delivery system positioning
D
a servomotor piston attached to the fuel controls
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更多 “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” 相关考题
考题
【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。A. BSC B. BTS C. MSC D. VLR A. BSC B. BTS C. MSC D. HLR A. Land lines B. Microwave links C. Microwave dish antenna D. Land lines or microwave links
考题
A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust theA.pilot valve openingB.compensating needle valveC.compensating spring tensionD.accumulator spring tension
考题
The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known asA.mechanical lubricatorB.lubrication functionC.forced feed systemD.bearing lubrication
考题
Some of the TestKing routers have been configured with default routes. What are some of the advantages of using default routes?()
A. They establish routes that will never go down.B. The keep routing tables small.C. They require a great deal of CPU power.D. The allow connectivity to remote networks that are not in the routing table.E. They direct traffic from the Internet into corporate networks.
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
Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?A.the hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
考题
In grammar practice,substitution and__________drills are most frequently used in?mechanical practice.A.meaning
B.matching
C.correction
D.transformation
考题
Which two are true regarding direct-path exports？（）A、Direct-path export is typically faster.B、Direct-path export can be invoked interactively.C、Direct-path export is character set independent.D、Direct-path export bypasses the SQL-command processing layer.E、Direct-path export can be used to export rows containing LOBs and BFILEs.
考题
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The instance has databases for a finance application and a manufacturing application. You want to put some limitation on the maximum CPU query time allowed by the applications, so you configure the Resource Governor to achieve this. But you notice that certain reports do not execute successfully any longer on the manufacturing application. You have to allow the manufacturing application to consume more CPU time, so you have to change the Resource Governor configuration. Which Resource Governor component should you configure?（） A、The workload group which is used by default B、The workload group which is used by the finance application C、The classifier function which identifies the finance application D、The workload group which is used by the manufacturing application
考题
单选题Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）A
the direct acting relief valve is used for controlling lower flows and pressureB
the pilot operated relief valve is used for controlling higher flows and pressureC
the pilot operated relief valve is used for controlling lower flows and pressureD
the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
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A large change in ambient temperature, or using an oil of a viscosity different from the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the （）.A
pilot valve openingB
compensating needle valveC
compensating spring tensionD
accumulator spring tension
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Diesel engines driving alternators operating in parallel must maintain set frequency regardless of load changesThe governor characteristic used to accomplish this is known as （）A
actuationB
sensitivityC
compensationD
thrust shaft
考题
单选题Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?（）A
The hydraulic pumpsB
ValvesC
Hydraulic cylindersD
Hydraulic motors
考题
单选题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 tars
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In grammar practice, substitution and ________drills are most frequently used in mechanical practice.A
meaningB
matchingC
correctionD
transformation
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A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.A
snatch blockB
threefold purchaseC
handy-billyD
chockablock
考题
单选题People in the plane can ______.A
have a good sleepB
have some small giftsC
buy some duty-free things
考题
单选题Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?（）A
CopperB
Copper and carbonC
CarbonD
Bronze
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
多选题Some of the TestKing routers have been configured with default routes. What are some of the advantages of using default routes?（）AThey establish routes that will never go down.BThe keep routing tables small.CThey require a great deal of CPU power.DThe allow connectivity to remote networks that are not in the routing table.EThey direct traffic from the Internet into corporate networks.
考题
单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The instance has databases for a finance application and a manufacturing application. You want to put some limitation on the maximum CPU query time allowed by the applications, so you configure the Resource Governor to achieve this. But you notice that certain reports do not execute successfully any longer on the manufacturing application. You have to allow the manufacturing application to consume more CPU time, so you have to change the Resource Governor configuration. Which Resource Governor component should you configure?（）A
The workload group which is used by default B
The workload group which is used by the finance application C
The classifier function which identifies the finance application D
The workload group which is used by the manufacturing application
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