【判断题】
【判断】 电气设备发生火灾时 ,严禁使用能导电的灭火剂进行带电灭火。
A. 对
B. 错
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【判断】 电伤是指触电时电流的热效应、化学效应以及电刺击引起的生物效应对人体外表造成的伤害。 ()
A. 对
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【判断题】
【判断】 绝缘棒应存放在特制的架子上或垂直悬挂在专用挂架上 ,以防止弯曲。 ()
A. 对
B. 错
【判断题】
【判断】变配电设备应有完善的屏护装置。安装在室外地上的变压器,以及安装在车间或公共场所的变配电装置 ,均需装设遮栏作为屏护。
A. 对
B. 错
【判断题】
【判断】 绝缘鞋可作为防护跨步电压的基本安全用具。
A. 对
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【判断】 电流持续时间越长 ,电流对人体的危害越严重。 ()
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【判断】 当人需要接触漏电设备时 ,为防止接触电压触电 ,应戴上绝缘手套 ,穿上绝缘鞋。 ()
A. 对
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【判断】 人体直接碰到带电导体造成的触电称之为直接接触触电。 ()
A. 对
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【判断题】
【判断】国家规定要求 :从事电气作业的电工,必须接受国家规定的机构培训、经考核合格者方可持证上岗。
A. 对
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【判断】 当人体距离高压电太近以及遭遇雷击、电容器放电等情况下,都可以导致触电。()
A. 对
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【判断题】
以方便使用者的原则来安装。
A. 对
B. 错
【判断题】
【判断】 当电气装置或设备发生火灾或引燃附近可燃物时 ,首先要切断电源。 ()
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【判断题】
险的火源。 ()
A. 对
B. 错
【判断题】
【判断】人体过分接近带电体 ,其间距小于放电距离时,会直接产生强烈的电弧对人放电,造成人触电伤亡。()
A. 对
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【判断题】
【判断】 使用绝缘棒 ,可以不用戴绝缘手套、穿绝缘靴。 ()
A. 对
B. 错
【判断题】
【判断】 移动式电气设备的性能与现场使用条件无关。
A. 对
B. 错
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【判断】 引发电气火灾要具备的两个条件为 :有可燃物质和引燃条件。 ()
A. 对
B. 错
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【判断】 人体距 10kV 带电设备的安全距离 ,应该大于等于 0.7m。()
A. 对
B. 错
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【判断】 旋转电机发生火灾时 ,禁止使用干粉灭火器和干沙直接灭火。
A. 对
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【判断】 我国采用的颜色标志的含义基本上与国际安全色标准相同。
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【判断】 电气火灾断电操作时应戴绝缘手套、穿绝缘靴 ,并使用相应电压等级的绝缘工具。()
A. 对
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【判断】 工作票是准许在电气设备上工作的书面命令,是执行保证安全技术措施的书面依据,一般有三种格式。
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【判断】 对运行中可能产生电火花、电弧和高温危险的电气设备和装置 ,不应放置在易燃的危险场所。 ()
A. 对
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【判断】 安全色标中 “黑色 ”表示强制执行。
A. 对
B. 错
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【判断】 为确保安全 ,户外变电装置的围墙高度一般应不低于 3 米。
A. 对
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【判断】 接地体是埋在地下与土壤直接接触的金属导体。 ()
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【判断】 室内电气装置或设备发生火灾时应尽快拉掉开关切断电源 ,并及时
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进行扑救。 ()
A. 对
B. 错
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【判断】 人体触电方式有直接接触触电、间接接触触电。 ()
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【判断】 作为一名电气工作人员 ,对发现任何人员有违反 《电业安全工作规程》 ,应立即制止。
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【判断】 电击 ,是电流通过人体对人体内部器官的一种伤害。 ()
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过接地装置与大地相连称为保护接地。 ()
A. 对
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【判断】 为防止人身电击 ,水不能用于带电灭火。 ()
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位。 ()
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【判断】 当铁损和铜损相等时 , 变压器处于最经济运行状态 ,一般在其带额定容量的50%~70% 时。 ()
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【判断】 干式变压器在结构上可分为以固体绝缘包封绕组和不包封绕组。 ()
A. 对
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【判断】 接线组别相同而并列 ,会在变压器相连的低压侧之间产生电压差 ,形成环流 ,严重时导致烧坏变压器。 ()
A. 对
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【判断】 一般情况下是在变压器高压绕组上抽出适当的分接 ,进行调压。 ()
A. 对
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An administrator is using the Host Failures to Tolerate Admission Control Policy for a vSphere High Availability ___ cluster. When configuring this setting on the cluster, the administrator sees this error message: <Insufficient resources to satisfy HA failover level on cluster > What are two likely causes for the error? (Choose two.)(AB)
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C.
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【多选题】
Which two actions are required when enabling vFlash Read Cache for a virtual machine's virtual disk? (Choose two.)___
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D. The
E. nable virtual flash host swap cache check box must be selected.
【多选题】
What two IT infrastructure components are virtualized by vSphere Essentials? (Choose two.)___
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When attempting to access a virtual machine, an administrator is unable to login using the vSphere credentials. What two options are probable causes of the authentication failure? (Choose two.)___
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