CHST Exam Questions and Answers
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NOT considered a significant factor in determining the outcome of an electrocution
event? - ✔✔
29 CFR 1910.1001, the allowable eight-hour exposure limit concentration to asbestos
fibers is not to exceed which of the following? - ✔✔0.1 fiber per cm3
29 CFR 1910.25-1910.27, the maximum length a single ladder or a single section of
ladder may be is __________. - ✔✔30 feet
Which of the following is NOT stipulated as a hazardous waste material attribute to
which the U.S. Environmental Protection Agency extends a designated waste code (e.g.,
#D001), as per 40 CFR 261, Subpart C?
a. Toxicity b. Corrosivity c. Mutagenicity d. Ignitability - ✔✔Ignitability
At what minimum frequency must electrical-insulating gloves be tested to ensure they
adequately protect workers against electrical shock? - ✔✔6 month intervals
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,The most useful tool that CHSTs can potentially use for evaluating system safety levels
at smallerscale worksites is a(n): a. Failure modes and - ✔✔JSA
If 25 or more employees are to be working underground at the same time, which of the
following safety procedure(s) must be in effect? - ✔✔Two separate, independent
telephone lines to the underground must be active and operational.
If a five-foot deep trench is dug in clay material, what angle must the trench wall not
exceed? - ✔✔53 degrees
"Lifting index" (LI) is calculated by? - ✔✔dividing the load weight by the recommended
weight limit (RWL)
"Flash point" is most accurately defined as? - ✔✔the lowest temperature at which a
flammable liquid can form an ignitable mixture in air.
what does a mobile-crane operator need to be aware of in order to ensure a safe lift? -
✔✔-Whether outriggers are ended or retracted
-angel of the boom
-if tires are inflated
-ensure the crane is level
-extended outriggers are supported
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, To what part of the body does a body harness typically NOT distribute any significant
fall-arrest force? - ✔✔lower back
"Recommended weight limit" (RWL) is most accurately defined as? - ✔✔the weight that
healthy workers could lift for up to eight hours without causing musculoskeletal
injuries
The Heinrich "incident to injury ratio" model states that for every 330 accidents, _______
result in no injuries, _______ cause minor injuries, and _______ cause(s) major injuries. -
✔✔300:29:1.
"three E's of safety"? - ✔✔engineering, education, enforcment
Total case incident rate (TCIR) is calculated via which of the following? - ✔✔the
number of OSHA-recordable injury cases in a year per hundred full-time employees
Which type of incident usually accounts for the highest fatality rate in the construction
industry? - ✔✔Falls
According to OSHA regulation 29 CFR 1926.651, a stairway, ladder, ramp, or other safe
means of egress shall be located in trench excavations that are ____ feet or more in
depth. - ✔✔four feet or more
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NOT considered a significant factor in determining the outcome of an electrocution
event? - ✔✔
29 CFR 1910.1001, the allowable eight-hour exposure limit concentration to asbestos
fibers is not to exceed which of the following? - ✔✔0.1 fiber per cm3
29 CFR 1910.25-1910.27, the maximum length a single ladder or a single section of
ladder may be is __________. - ✔✔30 feet
Which of the following is NOT stipulated as a hazardous waste material attribute to
which the U.S. Environmental Protection Agency extends a designated waste code (e.g.,
#D001), as per 40 CFR 261, Subpart C?
a. Toxicity b. Corrosivity c. Mutagenicity d. Ignitability - ✔✔Ignitability
At what minimum frequency must electrical-insulating gloves be tested to ensure they
adequately protect workers against electrical shock? - ✔✔6 month intervals
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 1
,The most useful tool that CHSTs can potentially use for evaluating system safety levels
at smallerscale worksites is a(n): a. Failure modes and - ✔✔JSA
If 25 or more employees are to be working underground at the same time, which of the
following safety procedure(s) must be in effect? - ✔✔Two separate, independent
telephone lines to the underground must be active and operational.
If a five-foot deep trench is dug in clay material, what angle must the trench wall not
exceed? - ✔✔53 degrees
"Lifting index" (LI) is calculated by? - ✔✔dividing the load weight by the recommended
weight limit (RWL)
"Flash point" is most accurately defined as? - ✔✔the lowest temperature at which a
flammable liquid can form an ignitable mixture in air.
what does a mobile-crane operator need to be aware of in order to ensure a safe lift? -
✔✔-Whether outriggers are ended or retracted
-angel of the boom
-if tires are inflated
-ensure the crane is level
-extended outriggers are supported
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 2
, To what part of the body does a body harness typically NOT distribute any significant
fall-arrest force? - ✔✔lower back
"Recommended weight limit" (RWL) is most accurately defined as? - ✔✔the weight that
healthy workers could lift for up to eight hours without causing musculoskeletal
injuries
The Heinrich "incident to injury ratio" model states that for every 330 accidents, _______
result in no injuries, _______ cause minor injuries, and _______ cause(s) major injuries. -
✔✔300:29:1.
"three E's of safety"? - ✔✔engineering, education, enforcment
Total case incident rate (TCIR) is calculated via which of the following? - ✔✔the
number of OSHA-recordable injury cases in a year per hundred full-time employees
Which type of incident usually accounts for the highest fatality rate in the construction
industry? - ✔✔Falls
According to OSHA regulation 29 CFR 1926.651, a stairway, ladder, ramp, or other safe
means of egress shall be located in trench excavations that are ____ feet or more in
depth. - ✔✔four feet or more
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