GUAM HEST EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. What is the primary purpose of workplace safety protocols?
A. Increase productivity only
B. Reduce accidents and injuries
C. Replace supervision
D. Eliminate all risks
Rationale: Safety protocols aim to minimize hazards and
prevent harm, not eliminate all risks completely.
Correct Answer: B
2. Which gas is most commonly associated with suffocation
hazards in confined spaces?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Rationale: Carbon dioxide can displace oxygen in confined
areas, leading to suffocation.
Correct Answer: C
,3. What does PPE stand for?
A. Personal Protective Equipment
B. Public Protection Equipment
C. Professional Prevention Equipment
D. Primary Protective Element
Rationale: PPE refers to gear designed to protect workers from
hazards.
Correct Answer: A
4. Which of the following is a biological hazard?
A. Noise
B. Bacteria
C. Heat
D. Radiation
Rationale: Biological hazards include living organisms such as
bacteria and viruses.
Correct Answer: B
5. The first step in risk assessment is:
A. Control implementation
B. Hazard identification
C. Incident reporting
D. PPE distribution
,Rationale: Hazards must be identified before any risk control
measures are applied.
Correct Answer: B
6. Which fire extinguisher is suitable for electrical fires?
A. Water
B. Foam
C. CO₂
D. Sand only
Rationale: CO₂ extinguishers are safe for electrical fires as they
do not conduct electricity.
Correct Answer: C
7. What is the main purpose of ventilation in workplaces?
A. Increase humidity
B. Remove airborne contaminants
C. Reduce lighting needs
D. Increase temperature
Rationale: Ventilation removes harmful gases, dust, and fumes.
Correct Answer: B
8. Which of the following is an ergonomic hazard?
, A. Loud noise
B. Poor workstation design
C. Chemical exposure
D. Radiation
Rationale: Poor ergonomics cause strain injuries due to
improper workstation setup.
Correct Answer: B
9. Handwashing is most effective in preventing:
A. Mechanical injuries
B. Infectious diseases
C. Noise pollution
D. Fire hazards
Rationale: Proper hand hygiene reduces transmission of
pathogens.
Correct Answer: B
10. Which symbol indicates a corrosive substance?
A. Flame
B. Skull
C. Test tube on hand/metal
D. Radiation sign
Rationale: Corrosive substances damage skin and metals.
Correct Answer: C
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. What is the primary purpose of workplace safety protocols?
A. Increase productivity only
B. Reduce accidents and injuries
C. Replace supervision
D. Eliminate all risks
Rationale: Safety protocols aim to minimize hazards and
prevent harm, not eliminate all risks completely.
Correct Answer: B
2. Which gas is most commonly associated with suffocation
hazards in confined spaces?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Rationale: Carbon dioxide can displace oxygen in confined
areas, leading to suffocation.
Correct Answer: C
,3. What does PPE stand for?
A. Personal Protective Equipment
B. Public Protection Equipment
C. Professional Prevention Equipment
D. Primary Protective Element
Rationale: PPE refers to gear designed to protect workers from
hazards.
Correct Answer: A
4. Which of the following is a biological hazard?
A. Noise
B. Bacteria
C. Heat
D. Radiation
Rationale: Biological hazards include living organisms such as
bacteria and viruses.
Correct Answer: B
5. The first step in risk assessment is:
A. Control implementation
B. Hazard identification
C. Incident reporting
D. PPE distribution
,Rationale: Hazards must be identified before any risk control
measures are applied.
Correct Answer: B
6. Which fire extinguisher is suitable for electrical fires?
A. Water
B. Foam
C. CO₂
D. Sand only
Rationale: CO₂ extinguishers are safe for electrical fires as they
do not conduct electricity.
Correct Answer: C
7. What is the main purpose of ventilation in workplaces?
A. Increase humidity
B. Remove airborne contaminants
C. Reduce lighting needs
D. Increase temperature
Rationale: Ventilation removes harmful gases, dust, and fumes.
Correct Answer: B
8. Which of the following is an ergonomic hazard?
, A. Loud noise
B. Poor workstation design
C. Chemical exposure
D. Radiation
Rationale: Poor ergonomics cause strain injuries due to
improper workstation setup.
Correct Answer: B
9. Handwashing is most effective in preventing:
A. Mechanical injuries
B. Infectious diseases
C. Noise pollution
D. Fire hazards
Rationale: Proper hand hygiene reduces transmission of
pathogens.
Correct Answer: B
10. Which symbol indicates a corrosive substance?
A. Flame
B. Skull
C. Test tube on hand/metal
D. Radiation sign
Rationale: Corrosive substances damage skin and metals.
Correct Answer: C
