CHST Exam Study Guide (100% correct answers)

Is a trench considered an excavation? correct answers Yes What is the distance a worker needs to maintain from power lines? correct answers 10ft What does the severity of electric shock depend on? correct answers Path of current, amount of current, duration of exposure True or false: electrical current as low as 75 milliamps can cause death? correct answers True What are some examples of surcharge loads? correct answers Spoils pile and equip being too close to walls What is the correct extension cord for construction? correct answers 3 wire type designed for hard or extra hard use True or false: Exposed metal parts of equipment should be grounded correct answers True How does a gfci protect against electrical shock? correct answers Detects the difference in current between the black and white wires How can overloaded circuit hazards be controlled? correct answers Through the use of electrical protective devices What are some examples of electrical protective devices? correct answers Gfcis, fuses, circuit breakers What is static electricity? correct answers An electric charge that cannot move How wide must the platform of a scaffold be? correct answers 18 inches The platform of a scaffold must be capable of supporting its weight and __________ times the maximum load. correct answers Four The ropes or wires used in suspension scaffolds must be capable of supporting ______ times the load. correct answers Six What should be used to restrain supported scaffold platforms from tipping? correct answers Guys, ties, or braces What is Fall Prevention? correct answers The process, equipment, and methods used to actually prevent a fall from occurring. What is fall protection? correct answers The process, equipment, and methods used to protect a worker once a fall has occurred.