Engineering > STUDY GUIDE > CHST Exam Study Guide | 133 Questions with 100% Correct Answers (All)
Is a trench considered an excavation? - ✔✔Yes What is the distance a worker needs to maintain from power lines? - ✔✔10ft What does the severity of electric shock depend on? - ✔✔Path of c... urrent, amount of current, duration of exposure True or false: electrical current as low as 75 milliamps can cause death? - ✔✔True What are some examples of surcharge loads? - ✔✔Spoils pile and equip being too close to walls What is the correct extension cord for construction? - ✔✔3 wire type designed for hard or extra hard use True or false: Exposed metal parts of equipment should be grounded - ✔✔True How does a gfci protect against electrical shock? - ✔✔Detects the difference in current between the black and white wires How can overloaded circuit hazards be controlled? - ✔✔Through the use of electrical protective devices What are some examples of electrical protective devices? - ✔✔Gfcis, fuses, circuit breakers What is static electricity? - ✔✔An electric charge that cannot move How wide must the platform of a scaffold be? - ✔✔18 inches The platform of a scaffold must be capable of supporting its weight and __________ times the maximum load. - ✔✔Four The ropes or wires used in suspension scaffolds must be capable of supporting ______ times the load. - ✔✔Six What should be used to restrain supported scaffold platforms from tipping? - ✔✔Guys, ties, or braces What is Fall Prevention? - ✔✔The process, equipment, and methods used to actually prevent a fall from occurring. [Show More]
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