CHST STUDY GUIDE – REVISED 2026 WITH 200 VERIFIED
QUESTIONS AND CORRECT DEFINITIVE ANSWERS
Which of the following diseases would you associate with
divers and tunnel workers?
Caisson Disease
Personnel who work in or near cooling towers may reasonably
be exposed to which of the following diseases?
Legionnaire's Disease
Given the following information, calculate the WBGT index.
Outdoor glove temperature of 101 Degree F, wet-bulb
temperature 94 Degree F, dry bulb temperature 97 Degree F.
96 Degree F.
The primary reason for investigating accidents is to:
Determine the cause(s) to prevent a recurrence
When investigating accidents it is best to interview witnesses:
Individually (Alone)
1|P a g e
,With respect to taking photos at an accident scene, which of
the following is INCORRECT:
Limit the number of photos as they could show potential
hazards.
After rendering First Aid and making the accident scene safe,
what is the most important next step in the investigation
process:
Securing the scene to preserve and collect evidence
According to the OSHA Hazcom Standard, labels and other
forms of warning must be in:
English
Which of the following is an example of an appropriate hazard
warning, according to OSHA's Hazard Communication
Standard:
Warning - May cause eye irritation.
Which of the following is an exposure limit that is published
and enforced by OSHA as a legal standard?
PEL (Permissible Exposure Limit)
2|P a g e
,Which is true of the hazard communication training?
Training must include the method that may be used to detect a
release of hazardous chemicals in their area.
OSHA has specific requirements concerning personal
protective equipment. Which of the following statements is
INCORRECT concerning OSHA PPE requirements?
The Employer does not have to pay for replacements PPE,
except when the employee has lost or intentionally damaged
the PPE
The concept of ABC Analysis refers to:
Behavioral psychologists' approach to analyzing behavior
The "ABC" in ABC refers to:
Antecedents, Behavior and Consequences
According to OSHA 1926.800 - Underground Construction, the
primary role of the designated above-ground duty person is to:
Maintain a head count of personnel working underground and
call for help in an emergency
3|P a g e
, Which of the following statements is INCORRECT concerning
the medical surveillance requirements of OSHA 1910.120?
Hazardous waste site personnel should receive a physical or
doctor's consultation:
At least every six (6) months unless a physician says
otherwise.
When a physician submits a written report to an employer
concerning the results of an employee's physical, what should
the report contain?
Physician's recommended limitations on employee's work
assignments & Physician's opinion concerning medical
problems which might place the employee at increased health
risk from the proposed work.
Employees will be exposed to 98 dba for 8 hours/day. The
hearing protection we have chosen has a noise reduction
rating of 24 d BA. The client has questioned if the hearing
protection selected will be adequate to reduce exposures to 90
dba or less. The calculated estimated exposer (dba) is:
81 dba
The atmosphere in a confined space contains 15 ppm of
chlorine. Assuming the respirator has a cartridge(s) suitable
4|P a g e
QUESTIONS AND CORRECT DEFINITIVE ANSWERS
Which of the following diseases would you associate with
divers and tunnel workers?
Caisson Disease
Personnel who work in or near cooling towers may reasonably
be exposed to which of the following diseases?
Legionnaire's Disease
Given the following information, calculate the WBGT index.
Outdoor glove temperature of 101 Degree F, wet-bulb
temperature 94 Degree F, dry bulb temperature 97 Degree F.
96 Degree F.
The primary reason for investigating accidents is to:
Determine the cause(s) to prevent a recurrence
When investigating accidents it is best to interview witnesses:
Individually (Alone)
1|P a g e
,With respect to taking photos at an accident scene, which of
the following is INCORRECT:
Limit the number of photos as they could show potential
hazards.
After rendering First Aid and making the accident scene safe,
what is the most important next step in the investigation
process:
Securing the scene to preserve and collect evidence
According to the OSHA Hazcom Standard, labels and other
forms of warning must be in:
English
Which of the following is an example of an appropriate hazard
warning, according to OSHA's Hazard Communication
Standard:
Warning - May cause eye irritation.
Which of the following is an exposure limit that is published
and enforced by OSHA as a legal standard?
PEL (Permissible Exposure Limit)
2|P a g e
,Which is true of the hazard communication training?
Training must include the method that may be used to detect a
release of hazardous chemicals in their area.
OSHA has specific requirements concerning personal
protective equipment. Which of the following statements is
INCORRECT concerning OSHA PPE requirements?
The Employer does not have to pay for replacements PPE,
except when the employee has lost or intentionally damaged
the PPE
The concept of ABC Analysis refers to:
Behavioral psychologists' approach to analyzing behavior
The "ABC" in ABC refers to:
Antecedents, Behavior and Consequences
According to OSHA 1926.800 - Underground Construction, the
primary role of the designated above-ground duty person is to:
Maintain a head count of personnel working underground and
call for help in an emergency
3|P a g e
, Which of the following statements is INCORRECT concerning
the medical surveillance requirements of OSHA 1910.120?
Hazardous waste site personnel should receive a physical or
doctor's consultation:
At least every six (6) months unless a physician says
otherwise.
When a physician submits a written report to an employer
concerning the results of an employee's physical, what should
the report contain?
Physician's recommended limitations on employee's work
assignments & Physician's opinion concerning medical
problems which might place the employee at increased health
risk from the proposed work.
Employees will be exposed to 98 dba for 8 hours/day. The
hearing protection we have chosen has a noise reduction
rating of 24 d BA. The client has questioned if the hearing
protection selected will be adequate to reduce exposures to 90
dba or less. The calculated estimated exposer (dba) is:
81 dba
The atmosphere in a confined space contains 15 ppm of
chlorine. Assuming the respirator has a cartridge(s) suitable
4|P a g e
