()uses one or two high pressure pumps for all the cylinders

题目
单选题
()uses one or two high pressure pumps for all the cylinders with one more standby, while()have a separate high-pressure pump for each cylinder.
A

A common rail engine;conventional engines

B

A conventional engine;common rail engines

C

A marine diesel engine;most other engines

D

A two-stroke engine;four-stroke engines

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相似问题和答案

第1题:

If a heavy sea strikes the rudder, the shock is transmitted through ___ to the rams, this cause a sudden increase in oil pressure in one of the cylinders.

A.the control rod

B.the hunting gear

C.the floating ring

D.the tiller arm


正确答案:D

第2题:

A fire pump may be used for other purposes if ______.

A.the other services are run off a reducing station with a pressure gage

B.one of the required pumps is kept available for use on the fire main system at all times

C.no relief valves are installed

D.all of the above conditions are met


正确答案:B

第3题:

Of the following, which one is not a term of Marine Weather Bulletin?______.

A.Complex low

B.Depression

C.High pressure

D.Ambient pressure


正确答案:D
对于下列,哪个不是海上气象公告术语?环境压力

第4题:

When scaling Coherence from one to two cache servers, it will not show the same scalability as two to four. Why?()

  • A、 Coherence uses a more efficient TCMP algorithm going from two to four cache servers
  • B、 When going from one to two cache servers, object backups are copied across servers so work is doubled,but going from two to four is a fixed amount of work
  • C、 Near cache is enabled with a larger quorum thus performance is improved
  • D、 all of the above

正确答案:B

第5题:

Mean high water is the average height of ______.

A.the higher high waters

B.the lower high waters

C.the lower of the two daily tides

D.all high waters


正确答案:D
平均高潮是所有高潮潮高的平均值。

第6题:

The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than _____ of the total bilge pumping capacity.

A.one-third

B.two-thirds

C.one-fourth

D.two-fourths


正确答案:B

第7题:

In which voyage,between two points,is the rhumb line distance NOT approximately the same as the great circle distance?_____.

A.The two points are in low latitudes in the same hemisphere

B.The two points are in high latitudes in the same hemisphere

C.The two points are near the equator,but in different hemispheres

D.One point is near the equator,one point is in a high latitude,and both are near the 180th meridian


正确答案:B
在什么样的航程中,两点之间的恒向线的距离与大圆距离相差较大?在同一半球高纬的两点。

第8题:

With reference to a two-ram actuating mechanism, which one of the following statement is FALSE?

A.The rams work inside cylinders.

B.The cylinders have glands sealing their open ends.

C.The rams are connected to a cross-head

D.The cross-head is mounted on the rudder stock


正确答案:D

第9题:

Which two of the following are valid characteristics of EIGRP?()

  • A、Has a maximum hop count of 25
  • B、Can differentiate between internal and external routes
  • C、Uses a 32-bit metric
  • D、Can maintain only one routing table
  • E、Need all networks to use the same subnet mask
  • F、Supports only one routed protocol

正确答案:B,C

第10题:

单选题
When scaling Coherence from one to two cache servers, it will not show the same scalability as two to four. Why?()
A

 Coherence uses a more efficient TCMP algorithm going from two to four cache servers

B

 When going from one to two cache servers, object backups are copied across servers so work is doubled,but going from two to four is a fixed amount of work

C

 Near cache is enabled with a larger quorum thus performance is improved

D

 all of the above


正确答案: C
解析: 暂无解析

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