宁夏省2017年电机装配工：基础理论模拟试题
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宁夏省2017年电机装配工：基础理论模拟试题
本卷共分为2大题50小题，作答时间为180分钟，总分100分，60分及格。
一、单项选择题（共25题，每题2分，每题的备选项中，只有 1 个事最符合题意）
1、定心精度较高，装配也比较容易的配合形式是__。
A．过盈配合
B．间隙配合
C．过渡配合
D．完全配合
2、#3发电机定、转子上对应有__个风区
A．7
B．9
C．11
3、人们对现实生活中的道德关系和道德行为所表现的情绪和态度称为__。
A．职业道德情感
B．职业道德意志
C．职业道德信念
D．职业道德行为
4、下列锉削方法中，能用于锉削平面及最后锉光的是__。
A．交叉锉
B．顺向锉
C．旋转锉
D．推锉
5、为了防止防爆电动机隔爆锈蚀，水压试验时需用专门配制的水溶液进行，溶液配方(按质量分数计算)为：磷酸钠__。
A．1.0%～1.3%
B．0.5%～0.8%
C．0.5%～0.65%
D．0.5%～1%
6、下列绕组中需要使用转子端部绑扎设备的是__。
A．异步电动机的定子绕组
B．同步发电机的电枢绕组
C．直流电动机的电枢绕组
D．笼型电动机的转子绕组
7、定子绕组端部整形机由整形器、__、小车、定子等部分组成。
A．传动机构
B．转子
C．大车
D．液压机构
8、用千分表检查测量电机轴伸径向圆跳动时，使转子慢慢转动一周，除键槽部分外，千分表指针的两极限位置的指示值__即为所求的径向圆跳动值。
A．之商 B．之乘
C．之和
D．之差
9、The destruction of our natural resources and contamination of our food supply
continue to occur, largely because of the extreme difficulty in affixing (把……固定) legal responsibility on those who continue to treat our
environment with reckless abandon (放任). Attempts to prevent pollution by
legislation, economic incentives and friendly persuasion have been met by lawsuits,
personal and industrial denial and long delays---not only in accepting responsibility,
but more importantly, in doing something about it.It seems that only when
government decides it can afford tax incentives or production sacrifices is there any
initiative for change. Where is industry’ s and our recognition that protecting
mankind’ s great treasure is the single most important responsibility If ever
there will be time for environmental health professionals to come to the frontlines and
provide leadership to solve environmental problems, that time is now.We are being
asked, and, in fact, the public is demanding that we take positive action. It is our
responsibility as professionals in environmental health to make the difference. Yes,
the ecologists, the environmental activists and the conservationists serve to
communicate, stimulate thinking and promote behavioral change. However, it is those
of us who are paid to make the decisions to develop, improve and enforce
environmental standards, I submit, who must lead the charge.We must recognize that
environmental health issues do not stop at city limits, county lines, state or even
federal boundaries. We can no longer afford to be tunnel-visioned in our approach. We
must visualize issues from every perspective to make the objective decisions. We
must express our views clearly to prevent media distortion and public confusion.I
believe we have a three-part mission for the present. First, we must continue to press
for improvements in the quality of life that people can make for themselves. Second,
we must investigate and understand the link between environment and health. Third,
we must be able to communicate technical information in a form that citizens can
understand. If we can accomplish these three goals in this decade, maybe we can
finally stop environmental degradation, and not merely hold it back. We will then be
able to spend pollution dollars truly on prevention rather than on bandages.Which of
the following, according to the author, should play the leading role in the solution of
environmental problems ()
A．Legislation and government intervention.
B．The industry's understanding and support.
C．The efforts of environmental health professionals.
D．The cooperation of ecologists, environmental activists and conservationists.
10、电工材料一般分为4类，即绝缘材料、导电材料、__和结构材料。
A．磁性材料
B．导热材料
C．包装材料
D．树脂材料
11、下列选项不属于数字式仪表特点的是__。 A．灵敏度高
B．准确度高
C．抗干扰能力强
D．显示清晰直观
12、职业道德是事业成功的__。
A．重要保证
B．最终结果
C．决定条件
D．显著标志
13、对于允许逆转的直流电动机，可用__测定电刷中性位置。
A．正、反转法
B．感应法
C．电流表法
D．电压表法
14、热电偶是工业上目前应用最广泛的测温器件之一，其测温范围一般为__℃
A．270～400
B．1500～2500
C．-270～2800
D．2700～4000
15、工序卡的主要内容之一为__。
A．工步的切削用量
B．电路图
C．材料种类
D．零部件结构图
16、波绕组与叠绕组嵌线的区别，仅在于波绕组无__，且换向片节距与叠绕组不同而已，其他的过程是一致的。
A．压力线
B．均流线
C．电压线
D．均压线
17、流过两个串联电阻的电流均为SA，则总电流I=__。
A．5A
B．10A
C．1A
D．25A
18、检查电机振动、响声以及轴承、电刷装置的运行情况是用__试验来完成的。
A．满载
B．短路
C．堵转
D．空转
19、对于转速在1500r/min及以下的__电机，一般将转子磁极做成凸极式结构。
A．同步
B．压接
C．交流
