Safety Technology Exchange Edition: Daily Question (2016.8.5)
Thread Content
1.jpg1. Where must tools be placed when working at heights? ____ A. In the pocket of the work uniform B. In a portable tool box or tool bag C. Holding all tools 2. Safe voltage is the voltage that does not pose a risk to life safety under certain conditions and for a certain period of time. The power frequency safety voltage levels specified by our country’s standards are 42V, 36V, 24V, 12V, and 6V (r.m.s.). Different safety voltages should be selected depending on the electrical environment and the type of electrical equipment being used. The voltage of handheld lighting devices used in environments with electric shock hazards must not exceed ____V. A、12 B、24 C、36 D、42 The correct answers are B and C
1. Where must tools be placed when working at heights? B. In the portable tool box or tool bag____ 2. Safe voltage is the voltage that does not pose a threat to life safety under certain conditions and for a certain period of time. The power frequency safety voltage levels specified by our country’s standards are 42V, 36V, 24V, 12V, and 6V (r.m.s.). Different safety voltages should be selected depending on the electrical environment and the type of electrical equipment being used. The voltage of handheld lighting devices used in environments with electric shock hazards must not exceed __A, 12__V.
1. B. ---------------2、C.
Choose B for the first one, and A for the second one
1. Where must tools be placed when working at heights? ____ B. In the portable tool box or tool bag. 2. Safe voltage is a voltage that does not pose a threat to life safety under certain conditions and for a certain period of time. The power frequency safety voltage levels specified by our country’s standards are 42V, 36V, 24V, 12V, and 6V (r.m.s.). Different safety voltages should be selected depending on the electrical environment and the type of electrical equipment being used. The voltage of handheld lighting devices used in environments with electric shock hazards must not exceed ____V. C, 36