CHST COMPLETE EXAM PREP STUDY GUIDE
QUESTIONS WITH 100% CORRECT ANSWERS
2025-2026
, 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 charge that cannot move
How wide must the platform of a scaffold be? ANSWER >> 18 inches
QUESTIONS WITH 100% CORRECT ANSWERS
2025-2026
, 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 charge that cannot move
How wide must the platform of a scaffold be? ANSWER >> 18 inches
