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单选题A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.A between；toB either；orC from；toD neither；nor

题目
单选题
A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.
A

between；to

B

either；or

C

from；to

D

neither；nor

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

Which of the following accurately describes the meaning of redundant cooling？（）

  • A、The source of cooling to a RAID system
  • B、The cooling system in a redundant power supply
  • C、A cooling system that can be installed in case of failure
  • D、A second cooling system in case of a failure

正确答案:D

第2题：

单选题
（） are used to limit the pressure in any particular portion and mainly control the pressure after the valve.
A

Relief valves

B

Check valves

C

Safety valves

D

Reducing valve


正确答案： C
解析： 暂无解析

第3题：

What is head tank in the closed cooling water system used for?

A.for the release of air from the cooling water

B.providing expansion room for heated cooling water

C.a place for implementing water and water treatment agent

D.all of the above


正确答案：D

第4题：

单选题
Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.
A

cylinder liners and piston rings

B

main bearings

C

crankpin bearings

D

turboblower


正确答案： D
解析： 暂无解析

第5题：

单选题
A segregated ballast system is a system where （）
A

all ballast is processed through the oily water separator

B

ballast is taken on and discharged through a separate main deck riser

C

ballast and cargo tanks are separated by cofferdams

D

all ballast lines, tanks, and pumps are independent of those used for oil


正确答案： C
解析： 暂无解析

第6题：

Your database is configured in shared server mode. However， your senior DBA asks you to modifythe value of the PRIVATE_SGA limit in the profile of the users.  What could be the reason for this（）

  • A、to limit the User Global Area （UGA） memory allocated to a session from the SGA
  • B、to limit the amount of memory to be used for the dispatcher queue of a session in SGA
  • C、to limit the amount of memory to be used for the request pool in System Global Area （SGA）
  • D、to control the amount of memory allocated in SGA for the local variables for each shared server process

正确答案:A

第7题：

单选题
What is head tank in the closed cooling water system used for?（）
A

for the release of air from the cooling water

B

providing expansion room for heated cooling water

C

a place for implementing water and water treatment agent

D

all of the above


正确答案： B
解析： 暂无解析

第8题：

Piston cooling fins are located

A.atop the piston crown

B.beneath the piston crown

C.at the base of the piston skirt

D.inside the cylinder liner cooling water jacket


正确答案：B

第9题：

单选题
A separate piston cooling system is used （） any contamination from piston cooling glands to the piston cooling system only.
A

to help

B

to limit

C

to protect

D

to remove


正确答案： C
解析： 暂无解析

第10题：

单选题
What is commonly used to create turbulence in a diesel engine combustion system?（）
A

Shape of the piston crowns

B

Increasing the compression ratios

C

Increasing the piston crowns

D

Increasing the turbocharger gear ratio


正确答案： A
解析： 暂无解析

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