CHST Exam Study Guide Correct Questions & Answers!!

Is a trench considered an excavation? - ANSWER Yes What is the distance a worker needs to maintain from power lines? - ANSWER 10ft What does the severity of electric shock depend on? - ANSWER Path of current, amount of current, duration of exposure True or false: electrical current as low as 75 milliamps can cause death? - ANSWER True What are some examples of surcharge loads? - ANSWER Spoils pile and equip being too close to walls What is the correct extension cord for construction? - ANSWER 3 wire type designed for hard or extra hard use True or false: Exposed metal parts of equipment should be grounded - ANSWER True How does a gfci protect against electrical shock? - ANSWER Detects the difference in current between the black and white wires How can overloaded circuit hazards be controlled? - ANSWER Through the use of electrical protective devices What are some examples of electrical protective devices? - ANSWER Gfcis, fuses, circuit breakers What is static electricity? - ANSWER An electric cha