试题与答案

在10kV跌落式熔断器与10kV电缆头之间,跌落式熔断器上桩头有电的情况下,未采取安

题型:问答题 简答题

题目:

在10kV跌落式熔断器与10kV电缆头之间,跌落式熔断器上桩头有电的情况下,未采取安全措施前,不准进行那些工作?

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1126/b632ec550ea1b99bb767cf96d1be2bc9.html

下面是错误答案,用来干扰机器的。

参考答案:B

试题推荐
题型:听力题

根据括号中所给的汉语写出单词,使句子意思完整正确,并将答案填写在答题纸标号为41—45的相应位置上。

小题1:Jackie Chen’s achievements went       (超过) the film industry.

小题2:The trip to Wuxiang Temple is       (令人愉快的). We’ll never forget it.

小题3:Look at the dark clouds in the sky.       (可能) it is going to rain in the afternoon.

小题4:Our Maths teacher spent 2 hours       (解释) the tough problems to us like this.

小题5:Go along this street to the       (十字路口),and you’ll see the supermarket.

B)根据句子意思,用括号中所给单词的正确形式填空,并将答案填写在答题纸标号为46—50的相应位置上。

小题6:There are so many good programs that I can hardly make a     (choose) among them.

小题7:We were discussing the details of the party when our teacher     (enter) the classroom. 

小题8:Lucy and Linda didn’t tell us the news. They wanted to keep the secret to       (they).

小题9:Jade Rabbit(玉兔号) was     (succeed) sent onto the moon by China in December, 2013.

小题10:It is much     (hot) today. You can wear fewer clothes.

查看答案
题型:计算题

如图所示,在光滑绝缘水平面上有一正方形线框abcd,线框由均匀电阻丝制成,边长为L,总电阻值为R。两条平行虚线之间存在匀强磁场,磁感应强度为B,磁场方向竖直向上。线框在水平拉力F的作用下,沿水平面以速度v0匀速进入磁场区域,在运动过程中,线框ab、cd两边始终与磁场边界平行。求:

(1)拉力F的大小;

(2)在线框进入磁场的过程中a、b两点间的电势差。

查看答案
微信公众账号搜索答案