【判断题】
企业、事业单位的职工无特种作业操作证从事特种作业,属违章作业
A. 对
B. 错
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答案
A
解析
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特种作业操作证每1年由考核发证部门复审一次
A. 对
B. 错
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“止步,高压危险”的标志牌的式样是白底、红边,有红色箭头
A. 对
B. 错
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试验对地电压为50V以上的带电设备时,氖泡式低压验电器就应显示有电
A. 对
B. 错
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常用绝缘安全防护用具有绝缘手套、绝缘靴、绝缘隔板、绝缘垫、绝缘站台等
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B. 错
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在安全色标中用绿色表示安全、通过、允许、工作
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幼儿园及小学等儿童活动场所插座安装高度不宜小于1.8m
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在带电维修线路时,应站在绝缘垫上
A. 对
B. 错
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为了安全可靠,所有开关均应同时控制相线和零线
A. 对
B. 错
【判断题】
漏电开关跳闸后,允许采用分路停电再送电的方式检查线路
A. 对
B. 错
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为了有明显区别,并列安装的同型号开关应不同高度,错落有致
A. 对
B. 错
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民用住宅严禁装设床头开关
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使用手持式电动工具应当检查电源开关是否失灵、是否破损、是否牢固、接线是否松动
A. 对
B. 错
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移动电气设备可以参考手持电动工具的有关要求进行使用
A. 对
B. 错
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手持式电动工具接线可以随意加长
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一号电工刀比二号电工刀的刀柄长度长
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吸收比是用兆欧表测定
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B. 错
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在我国,超高压送电线路基本上是架空敷设
A. 对
B. 错
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电缆保护层的作用是保护电缆
A. 对
B. 错
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为了安全,高压线路通常采用绝缘导线
A. 对
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10kV以下运行的阀型避雷器的绝缘电阻应每年测量一次
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A. 对
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除独立避雷针之外,在接地电阻满足要求的前提下,防雷接地装置可以和其他接地装置共用
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正弦交流电的周期与角频率的关系互为倒数的
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二极管只要工作在反向击穿区,一定会被击穿
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B. 错
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电流和磁场密不可分,磁场总是伴随着电流而存在,而电流永远被磁场所包围
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在三相交流电路中,负载为三角形接法时,其相电压等于三相电源的线电压
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并联电路的总电压等于各支路电压之和
A. 对
B. 错
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在串联电路中,电流处处相等
A. 对
B. 错
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对绕线型异步电机应经常检查电刷与集电环的接触及电刷的磨损,压力,火花等情况
A. 对
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A. 对
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A. 对
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In the Exhibit, each VM has a 1GHz non-expandable reservation. If all VMs are powered on in sequence, what would be the outcome?___
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A vSphere administrator wants to enable a virtual machine with Secure Boot, but in VM setting, Secure Boot option was not found under Boot Options. What could be the cause?___
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What are two reasons why a datastore in a Storage DRS cluster cannot enter maintenance mode?(Choose two.)___
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What two methods are used to configure VMware vSphere Storage I/O Control shares and limits? (Choose two.)___
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ESXi 6.5 introduces VMFS6, which supports both 512e and 512n devices. What three configurations are supported when using these devices? (Choose three.) ___
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A vSphere Administrator observes that the Primary VM configured with Fault Tolerance is executing slowly. After further investigation, it is determined that the Secondary VM is on an overcommitted ESXi host. What two methods will correct the problem? (Choose two.)___
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