Construction Health & Safety Technician (CHST)
Certification Exam 2 Questions And Correct
Answers (Verified Answers) Plus Rationales 2025
Question 1
Which OSHA standard specifically addresses construction safety and health
regulations?
A) 29 CFR 1910
B) 29 CFR 1926
C) 29 CFR 1904
D) 29 CFR 1915
Rationale:
29 CFR 1926 covers OSHA’s construction standards, while 29 CFR 1910 covers
general industry.
Question 2
What is the primary purpose of a Job Hazard Analysis (JHA)?
A) To document accidents
B) To assign tasks to employees
C) To identify and control hazards before starting a job
D) To ensure compliance with training requirements
,Answer: C) To identify and control hazards before starting a job
Rationale:
A JHA helps identify potential hazards and implement controls proactively.
Question 3
Which of the following is the best method to control exposure to airborne silica
dust on a construction site?
A) Use of personal respirators only
B) Administrative controls
C) Engineering controls such as water suppression and local exhaust ventilation
D) Relying on worker hygiene
Rationale:
Engineering controls are the most effective means to reduce silica dust exposure.
Question 4
What is the minimum required height for guardrails on a construction site to
prevent falls?
A) 30 inches
B) 33 inches
C) 42 inches
D) 48 inches
, Rationale:
OSHA requires guardrails to be 42 inches ± 3 inches above the walking/working
surface.
Question 5
Which type of fire extinguisher should be used on electrical fires?
A) Water
B) Foam
C) CO2 or dry chemical
D) Wet chemical
Rationale:
CO2 and dry chemical extinguishers are non-conductive and safe for electrical
fires.
Question 6
What is the first step in developing an effective safety program for a construction
company?
A) Implementing PPE requirements
B) Conducting a site inspection
C) Management commitment and employee involvement
D) Developing emergency procedures
Certification Exam 2 Questions And Correct
Answers (Verified Answers) Plus Rationales 2025
Question 1
Which OSHA standard specifically addresses construction safety and health
regulations?
A) 29 CFR 1910
B) 29 CFR 1926
C) 29 CFR 1904
D) 29 CFR 1915
Rationale:
29 CFR 1926 covers OSHA’s construction standards, while 29 CFR 1910 covers
general industry.
Question 2
What is the primary purpose of a Job Hazard Analysis (JHA)?
A) To document accidents
B) To assign tasks to employees
C) To identify and control hazards before starting a job
D) To ensure compliance with training requirements
,Answer: C) To identify and control hazards before starting a job
Rationale:
A JHA helps identify potential hazards and implement controls proactively.
Question 3
Which of the following is the best method to control exposure to airborne silica
dust on a construction site?
A) Use of personal respirators only
B) Administrative controls
C) Engineering controls such as water suppression and local exhaust ventilation
D) Relying on worker hygiene
Rationale:
Engineering controls are the most effective means to reduce silica dust exposure.
Question 4
What is the minimum required height for guardrails on a construction site to
prevent falls?
A) 30 inches
B) 33 inches
C) 42 inches
D) 48 inches
, Rationale:
OSHA requires guardrails to be 42 inches ± 3 inches above the walking/working
surface.
Question 5
Which type of fire extinguisher should be used on electrical fires?
A) Water
B) Foam
C) CO2 or dry chemical
D) Wet chemical
Rationale:
CO2 and dry chemical extinguishers are non-conductive and safe for electrical
fires.
Question 6
What is the first step in developing an effective safety program for a construction
company?
A) Implementing PPE requirements
B) Conducting a site inspection
C) Management commitment and employee involvement
D) Developing emergency procedures
