CHST Exam Questions With Correct Answers Latest Update (Verified)

CHST Exam Questions With Correct Answers Latest Update (Verified) 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 CHST Exam Questions With Correct Answers Latest Update (Verified) What is static electricity? - ANSWER An electric charge that cannot move How wide must the platform of a scaffold be? - ANSWER 18 inches The platform of a scaffold must be capable of supporting its weight and __________ times the maximum load. - ANSWER Four The ropes or wires used in suspension scaffolds must be capable of supporting ______ times the load. - ANSWER Six What should be used to restrain supported scaffold platforms from tipping? - ANSWER Guys, ties, or braces What is Fall Prevention? - ANSWER The process, equipment, and methods used to actually prevent a fall from occurring. What is fall protection? - ANSWER The process, equipment, and methods used to protect a worker once a fall has occurred. The top edge height of a guardrail should be _________ in. above the walking/working surface. - ANSWER 42 +/- 3 What are some common hazards associated with hot work? - ANSWER -Health hazards (air contaminants from welding operations [iron oxide, zinc, beryllium, copper], burns, burns to the eyes from flashes) -Physical hazards (tripping from hoses) -fires and explosions (igniting gases, improper storage) What are some controls for the hazards created when performing hot work? - ANSWER Protect or remove fire hazards in the area, confine heat, sparks, and slag, fire extinguishing equipment available, ventilation