Construction Health & Safety Technician (CHST)
Certification Exam 1 Questions And Correct
Answers (Verified Answers) Plus Rationales 2025
1. What is the primary purpose of a Job Hazard Analysis (JHA)?
A) To estimate project costs
B) To identify hazards and implement controls before starting a job
C) To train employees on personal protective equipment
D) To create a schedule for work activities
Answer: B
Rationale: A Job Hazard Analysis (JHA) systematically identifies hazards associated
with specific job tasks and determines the necessary controls to prevent injury or
illness before work begins.
2. Which of the following OSHA standards applies specifically to construction
work?
A) 29 CFR 1910
B) 29 CFR 1926
C) 29 CFR 1904
D) 29 CFR 1915
,Answer: B
Rationale: OSHA’s construction standards are found in 29 CFR 1926, covering
safety and health regulations specific to the construction industry.
3. The most effective way to control a hazard is to:
A) Provide personal protective equipment (PPE)
B) Eliminate the hazard completely
C) Implement administrative controls
D) Train workers on safe work practices
Answer: B
Rationale: Hazard elimination is the most effective control measure because it
completely removes the source of risk.
4. When should a safety harness and fall arrest system be used?
A) For work at heights over 4 feet
B) For work at heights over 8 feet
C) For work at heights over 6 feet
D) For work at heights over 10 feet
Answer: C
Rationale: OSHA requires fall protection, such as harnesses and fall arrest
systems, for construction workers exposed to fall hazards at heights of 6 feet or
more.
, 5. What is the maximum allowable slope for a stable soil trench?
A) 45 degrees
B) 60 degrees
C) 34 degrees
D) 90 degrees
Answer: C
Rationale: OSHA limits the maximum slope for stable soil trenches to 34 degrees
(1.5:1 horizontal to vertical) to prevent cave-ins.
6. A Safety Data Sheet (SDS) must contain which of the following?
A) Pricing information
B) Employee training records
C) Hazard identification and first aid measures
D) Contractor qualifications
Answer: C
Rationale: SDSs provide detailed information on chemical hazards, safe handling
procedures, and emergency response including first aid.
7. What is the primary reason for conducting safety inspections on a
construction site?
A) To assign worker shifts
B) To check project budgets
C) To identify and correct hazards before accidents occur
D) To enforce company dress code
Certification Exam 1 Questions And Correct
Answers (Verified Answers) Plus Rationales 2025
1. What is the primary purpose of a Job Hazard Analysis (JHA)?
A) To estimate project costs
B) To identify hazards and implement controls before starting a job
C) To train employees on personal protective equipment
D) To create a schedule for work activities
Answer: B
Rationale: A Job Hazard Analysis (JHA) systematically identifies hazards associated
with specific job tasks and determines the necessary controls to prevent injury or
illness before work begins.
2. Which of the following OSHA standards applies specifically to construction
work?
A) 29 CFR 1910
B) 29 CFR 1926
C) 29 CFR 1904
D) 29 CFR 1915
,Answer: B
Rationale: OSHA’s construction standards are found in 29 CFR 1926, covering
safety and health regulations specific to the construction industry.
3. The most effective way to control a hazard is to:
A) Provide personal protective equipment (PPE)
B) Eliminate the hazard completely
C) Implement administrative controls
D) Train workers on safe work practices
Answer: B
Rationale: Hazard elimination is the most effective control measure because it
completely removes the source of risk.
4. When should a safety harness and fall arrest system be used?
A) For work at heights over 4 feet
B) For work at heights over 8 feet
C) For work at heights over 6 feet
D) For work at heights over 10 feet
Answer: C
Rationale: OSHA requires fall protection, such as harnesses and fall arrest
systems, for construction workers exposed to fall hazards at heights of 6 feet or
more.
, 5. What is the maximum allowable slope for a stable soil trench?
A) 45 degrees
B) 60 degrees
C) 34 degrees
D) 90 degrees
Answer: C
Rationale: OSHA limits the maximum slope for stable soil trenches to 34 degrees
(1.5:1 horizontal to vertical) to prevent cave-ins.
6. A Safety Data Sheet (SDS) must contain which of the following?
A) Pricing information
B) Employee training records
C) Hazard identification and first aid measures
D) Contractor qualifications
Answer: C
Rationale: SDSs provide detailed information on chemical hazards, safe handling
procedures, and emergency response including first aid.
7. What is the primary reason for conducting safety inspections on a
construction site?
A) To assign worker shifts
B) To check project budgets
C) To identify and correct hazards before accidents occur
D) To enforce company dress code
