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As a general rule, the first troubleshooting action to be ta

题目
单选题
As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to （）.
A

draw a one line diagram of the circuitry

B

test all fuses and measure the line voltage

C

take megger readings

D

insulate the apparatus from ground

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相似问题和答案

第1题：

The first rule of camping is to keep a clean camp site, so let’s tidy ______ up.

A: them

B: her

C: it

D: him


参考答案：C

第2题：

Your network contains a server named Server1 that runs Windows Server 2008 R2.You discover that the server unexpectedly shut down several times during the past week.You need to identify what caused the shutdowns and which software was recently installed.What should you click from Action Center？（）

A. Maintenance, and then View reliability history

B. Troubleshooting, and then Programs

C. Troubleshooting, and then System and Security

D. Troubleshooting, and then View history


参考答案：A

第3题：

As a general rule, snakes ______ unless offended.

A will not be biting

B do not bite

C are not biting

D have not bitten


参考答案B

第4题：

The main feature of(72)is that they follow a first-come/first-served rule. For instance, the line of(73)waiting to be run on a computer system.

A．looplinks

B．queues

C．stacks

D．trees


正确答案：B
解析：译文：队列的主要特征是遵循先采先服务的原则。例如，计算机中等待运行的作业形成一个队列。

第5题：

A routing policy has three terms and the first term of the policy does not contain a terminating action. What will become of the routes after they have been evaluated by the first term?()

A.In the absence of a terminating action, all routes are accepted.

B.The route will be evaluated by the second term in the policy.

C.The default action will be applied.

D.In the absence of a termination action, all routes are rejected.


参考答案：B

第6题：

Rule 14 describes the action to be taken by vessels meeting head-on. Which of the following conditions must exist in order for this rule to apply?______.

A.Both vessels must be power-driven.

B.They must be meeting on reciprocal or nearly reciprocal courses.

C.The situation must involve risk of collision.

D.All of the above


正确答案：D
规则14描述船舶对遇局面将要采取的行动。为了使这个规则适用，以下哪个条件必须具备？两船均为机动船，他们必须相遇在相反或接近相反的航向上，局面必须有碰撞危险

第7题：

Which statement is true about a NAT rule action of off?()

A. The NAT action of off is only supported for destination NAT rule-sets.

B. The NAT action of off is only supported for source NAT rule-sets.

C. The NAT action of off is useful for detailed control of NAT.

D. The NAT action of off is useful for disabling NAT when a pool is exhausted


参考答案：C

第8题：

In my family there is a rule that anybody( ) comes first cooks the dinner for the whole family.

A. that

B. who

C. what

D. why


正确答案：B

第9题：

What is the minimum requirement of a GMDSS operator?

A.GMDSS operator license

B.Third officer license

C.General Radiotelephone Operator license and Radar Endorsement

D.General Radiotelephone license or First or Second Class Radiotelegraph license with GMDSS Radio Officer’s endorsement


正确答案：A

第10题：

摩托罗拉General参数中,“erc_ta_priority”现网设置范围:CME有此参数

A．错误

B．正确


参考答案：A

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