Safety Technology Exchange Edition: Daily Question (2016.7.24)
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1. When a person comes into direct contact with one of the phases of a live electrical device, current flows through the body and into the ground; this type of electric shock is called ____. A. Single-phase electric shock B. Two-phase electric shock C. Three-phase electric shock D. Step voltage electric shock 2. Which of the following belongs to the techniques for preventing indirect electric shock? ____ A. Insulation B. Shielding C. Distance D. Protective grounding A;D
1.A. Single-phase electric shock； 2.D. Protective grounding
1. When a person comes into direct contact with one of the phases of a live electrical device, current flows through the body and into the ground; this type of electric shock is called _A___. A. Single-phase electric shock B. Two-phase electric shock C. Three-phase electric shock D. Step voltage electric shock 2. The technique that belongs to the category of indirect contact electric shock prevention is __D__. A. Insulation B. Shielding C. Clearance D. Protective grounding
1. When a person comes into direct contact with one of the phases of a live electrical device, current flows through the body and into the ground; this type of electric shock is called ____. A. Single-phase electric shock 2. Which of the following belongs to the techniques for preventing indirect electric shock? ____ D. Protective grounding