CHST UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS
CHST Final TEST Script 2026/2027 Questions and
Answers Verified Solutions Latest Update
Question:
8 high risk tools.
Answer:
1. circular saw 2. table saw 3. nail gun 4. power drill 5. chain saw 6. air compressor 7. wood chipper
8. ladder
Question:
3 types of concrete.
Answer:
shotcrete, precast concrete, and fiber- reinforced concrete
Question:
Hazard substance suspected before demolition. What to do?
Answer:
testing/purging
Question:
3 steps of re-energizing of lines/equips.
Answer:
1. all crews working on lines or equips release their clearances 2. ensuring that all employees are
physically clear of lines and equip 3. ensuring that all protective tags are removed from the point of
disconnection
Question:
, stair requirements.
Answer:
1. landing of not less that 30 inches (76cm) 2. extend at least 22 inches (56cm) in width at every 12
ft (3.7m) or less vertical rise 3. variation in rises height or tread depth shall not be over 1/4 inch
(0.6cm) 4. where doors or gates open directly on a stairway, a platform shall be provided 5. swing of
the door shall not reduce the effective width of the platform to less than 20 inches (51cm). 6. stairs
must be installed between 30-50 degrees from horizontal.
Question:
how often need to fit-testing?
Answer:
at least annually
Question:
fit testing = seal check?
Answer:
No
Question:
Crane/derrick work can refuse work.
Answer:
Yes
Question:
Whats limited access zone.
Answer:
need to be equal to the height of the wall to be (re)constructed plus an additional 4ft, and run the
entire length of the wall
CHST Final TEST Script 2026/2027 Questions and
Answers Verified Solutions Latest Update
Question:
8 high risk tools.
Answer:
1. circular saw 2. table saw 3. nail gun 4. power drill 5. chain saw 6. air compressor 7. wood chipper
8. ladder
Question:
3 types of concrete.
Answer:
shotcrete, precast concrete, and fiber- reinforced concrete
Question:
Hazard substance suspected before demolition. What to do?
Answer:
testing/purging
Question:
3 steps of re-energizing of lines/equips.
Answer:
1. all crews working on lines or equips release their clearances 2. ensuring that all employees are
physically clear of lines and equip 3. ensuring that all protective tags are removed from the point of
disconnection
Question:
, stair requirements.
Answer:
1. landing of not less that 30 inches (76cm) 2. extend at least 22 inches (56cm) in width at every 12
ft (3.7m) or less vertical rise 3. variation in rises height or tread depth shall not be over 1/4 inch
(0.6cm) 4. where doors or gates open directly on a stairway, a platform shall be provided 5. swing of
the door shall not reduce the effective width of the platform to less than 20 inches (51cm). 6. stairs
must be installed between 30-50 degrees from horizontal.
Question:
how often need to fit-testing?
Answer:
at least annually
Question:
fit testing = seal check?
Answer:
No
Question:
Crane/derrick work can refuse work.
Answer:
Yes
Question:
Whats limited access zone.
Answer:
need to be equal to the height of the wall to be (re)constructed plus an additional 4ft, and run the
entire length of the wall
