什么是数字式仪表的周期性“采样”工作?

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问题:

什么是数字式仪表的周期性“采样”工作?

考点:仪表工考试仪表维修工高级技师仪表维修工高级技师题库
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有两个小灯泡L1“6V  6W”和L2“6V  12W”,下列说法正确的是(  )

A.将它们串联起来,接在12V的电源上,它们都能正常发光

B.将它们并联起来,接在12V的电源上,它们都能正常发光

C.L1和L2都正常发光时,L2的电阻是L1电阻的2倍

D.L1和L2都正常发光时,在相同的时间内,L2消耗的电能是L1的2倍

题型:问答题 简答题

H=消费品工业的净产值/资本品工业的净产值,下面错误的是( )。

A.当4<H<6时,处于工业化第一阶段

B.当1.5<H<4时,处于工业化第二阶段

C.当0.5<H<1.5时,处于工业化第三阶段

D.当0<H<0.5时,处于工业化第四阶段

题型:问答题 简答题

监理工程师对勘察现场作业的质量进行控制时,应重点检查()。

A.勘察实施方案的可行性

B.原始资料取样的方法、手段

C.工程勘察报告的有效性

D.原始记录表格的填写、签字

E.项目负责人在现场的工作情况

题型:问答题 简答题

阅读理解。

     A lot of us lose life's tough battles by starting a frontal attack-when a touch of humor might well enable

us to win. Consider the case of a young friend of mine, who hit a traffic jam on his way to work shortly

after receiving an ultimatum (最后通牒) about being late on the job. Although there was a good reason for

Sam's being late-serious illness at home-he decided that this by-now-familiar excuse wouldn't work any

longer. His supervisor was probably already pacing up and down preparing a dismissal speech.

     Yes, the boss was. Sam entered the office at 9:35. The place was as quiet as a locker room; everyone

was hard at work. Sam's supervisor came up to him. Suddenly, Sam forced a grin and stretched out his

hand. "How do you do!" he said. "I'm Sam Maynard. I'm applying for a job, which, I understand, became

available just 35 minutes ago. Does the early bird get the worm?"

     The room exploded in laughter. The supervisor clamped off a smile and walked back to his office. Sam

Maynard had saved his job-with the only tool that could win, a laugh.

     Humor is a most effective, yet frequently neglected, means of handling the difficult situations in our lives.

It can be used for patching up differences, apologizing, saying "no", criticizing, getting the other fellow to

do what you want without his losing face. For some jobs, it's the only tool that can succeed. It is a way to

discuss subjects so sensitive that serious dialog may start a quarrel. For example, many believe that comedians

on television are doing more today for racial and religious tolerance than people in any other forum.

1. Why was Sam late for his job?

A. Because he was ill.

B. Because he got up late.

C. Because he was caught in a traffic jam.

D. He was busy applying for a new job.

2. The main idea of this passage is ____.

A. Sam Maynard saved his job with humor

B. humor is important in our lives

C. early bird gets the worm

D. humor can solve racial discriminations

3. The phrase "clamped off" in Paragraph 3 means ____.

A. tried to hold back

B. tried to set

C. charged

D. gave out

4. Which of the following statements can we infer from the passage?

A. Many lose life's battles for they are lacking in a sense of humor.

B. It wasn't the first time that Sam came late for his work.

C. Sam was supposed to come to his office at 8:30.

D. Humor is the most effective way of solving problems.

题型:问答题 简答题

下列()对物料提升机使用的正确叙述。

A.只准运送物料,严禁载人上下

B.一般情况下不准载人,遇有紧急情况可以载人上下

C.安全管理人员检查时可以乘坐吊篮上下

D.维修人员可以乘坐吊篮上下

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