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The operation of paralleling two alternators requires the vo

题目
单选题
The operation of paralleling two alternators requires the voltages to be （）and also in phase.
A

zero

B

eliminated

C

different

D

equal

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相似问题和答案

第1题：

The division of kilowatt load between two paralleled alternators is determined by the

A.amount of field excitation of the leading machine

B.load-speed characteristics of the governors

C.amount of field excitation to the lagging machine

D.type of alternator


正确答案：B

第2题：

Which two statements are true about L2TP tunnel switching?()

A.Requires only one tunnel switching license.

B.Requires two licenses, one for inbound and one for outbound sessions.

C.Enabled automatically when the BSR is configured as an LAC and LNS.

D.Aids in L2TP tunnel scaling.


参考答案：B, D

第3题：

●The two goals of an operation system are（71）and efficiency.

（71）

A.convenience

B.quick

C.optimize

D.standardize


正确答案：A

第4题：

The game requires us to find out two simple but effective ways to solve this problem.

A: efficient
B: clever
C: stupid
D: easy

答案：D
解析：
句意：游戏要求我们必须找到两条既简单又有效的方法来解决这个问题。四个选项中，A. efficient的意思是“有效率的”;B. clever的意思是“聪明的”;C. stupid的意思是 “愚蠢的”;D. easy的意思是“简单的”，题目中画线部分的意思是“简单的、朴素的”，根据句子意思simple在本句话中的意思是“简单的”，因此D选项符合题意。

第5题：

An instruction is made up of operations that(68)the function to be performed and operands that represent the data to be operated on. For example, if an instruction is to perform. the operation of(69)two numbers, it must know(70)the two numbers are. The processor's job is to(71)instructions and operands from memory and to perform. each operation. Having done that, it signals memory to send it(72)instruction.

A．smile

B．skip

C．smoke

D．specify


正确答案：D
解析：全文解析：指令是由指定(specify)功能的操作和代表被处理的数据的操作数组成。例如，如果一条指令实现两个数的加法(adding)，则它必须知道操作数在哪里(where)存放。处理器是用来从内存中获取(get)指令和操作数，并执行指令。当本条指令处理完后，它通知内存发送下一条(next)指令。

第6题：

The operation of _______two alternators requires the voltages to be equal and also in phase

A.paralleling

B.series-mounting

C.running

D.controlling


正确答案：A

第7题：

What are three key pre－installation／configuration considerations when deploying a WX device?() (Choose three.)

A. cabling

B. community topology

C. requires a license key

D. requires two IP addresses

E. registration server designation


参考答案：A, B, E

第8题：

The two goals of an operation system are( )and efficiency．

A．convenience

B．quick

C．optimize

D．standardize


正确答案：A
解析：操作系统的两大目标是方便和效率。

第9题：

While paralleling two AC generators using synchronizing lamps only, both lamps will go dark when the generators are______.

A.running at the same speed

B.grounded

C.of the same polarity

D.in phase


正确答案：D

第10题：

Which two statements about NPIV are true？ （）

  • A、 After enabling NPIV， switch interfaces can only be placed into NP， F， or SD modes of operation.
  • B、 NPV devices log in to NPIV devices.
  • C、 NPIV requires the Enterprise License Package.
  • D、 NPIV is supported on the Cisco MDS， N7K， and N5K families of switches.
  • E、 A director class switch should not be placed into NPIV mode.

正确答案:B,D

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