1|Page
STSC EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK| COMPLETE 350 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| STSC EXAM REVIEW 2025||
BRAND NEW!!
Which control measure is most effective in preventing unauthorized
entry into a confined space?
A) Implementing a permit-required confined space program.
B) Posting warning signs around the confined space.
C) Providing training on confined space hazards.
D) Using physical barriers like gates or locks. - Correct Answer - A)
Implementing a permit-required confined space program.
When controlling hazards on a construction site, which hierarchy of
controls should be prioritized first?
A) Personal protective equipment (PPE)
B) Administrative controls
C) Engineering controls
D) Elimination or substitution - Correct Answer - D) Elimination or
substitutes
A construction worker named John accidentally spills a container of
hazardous solvent. What is the most appropriate immediate action to
minimize health risks to workers in proximity?
A) Apply absorbent materials to soak up the solvent
pg. 1
,2|Page
B) Ensure all workers wear appropriate PPE
C) Ventilate the area by opening windows and doors
D) Evacuate all personnel from the affected area - Correct Answer - D)
Evacuate all personnel from the affected area
During a routine inspection, Safety Supervisor John notices that the
crane operator is lifting a load near a power line. What is the most
appropriate control measure to prevent crane-related electrical hazards?
A) Ensure the crane maintains a minimum clearance of 10 feet from the
power line.
B) Use insulating barriers to separate the crane from the power line.
C) De-energize and ground the power line before operating the crane.
D) Assign a spotter to monitor the distance between the crane and the
power line. - Correct Answer - C) De-energize and ground the power
line before operating the crane.
Maria has been working on a construction site under direct sunlight for
several hours without adequate hydration. She starts to feel weak, her
pulse becomes rapid but weak, and she begins sweating profusely. What
condition is Maria most likely experiencing?
A) Heat Cramps
B) Heat Exhaustion
C) Heat Stroke
D) Dehydration - Correct Answer - B) Heat Exhaustion
pg. 2
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On a construction site, an oil spill catches fire near some flammable
materials. What is the best method for extinguishing this type of fire?
A) Water mist extinguisher
B) Foam extinguisher
C) Carbon dioxide (CO2) extinguisher
D) Wet chemical extinguisher - Correct Answer - B) Foam extinguisher
What emergency response equipment should be readily available on a
construction site to manage potential electrical hazards?
A) Insulated gloves
B) Fire blanket
C) Automated External Defibrillator (AED)
D) Eye wash station - Correct Answer - A) Insulated gloves
During an audit, Jane discovers that several workers are not wearing
personal protective equipment (PPE) in designated areas.
To mitigate this risk, what should Jane prioritize?
A) Enforce disciplinary actions for non-compliance.
B) Increase signage in designated PPE areas.
C) Conduct immediate refresher training on PPE usage.
D) Ensure availability of PPE at all entry points to designated areas. -
Correct Answer - C) Conduct immediate refresher training on PPE
usage.
pg. 3
, 4|Page
When conducting a Job Hazard Analysis (JHA) for a construction site,
which of the following steps is essential to accurately identify potential
hazards?
A) Reviewing past incident reports and near-misses.
B) Conducting a walkthrough of the sile wthout
involving workers.
C) Solely relying on safety data sheets (SDS) for hazard identification.
D) Implementing control measures before identifying all potential
hazards. - Correct Answer - A) Reviewing past incident reports and near-
misses.
On a construction site, a worker named John has sustained a serious
injury from falling debris. As the Safety Trained Supervisor, what should
be your immediate action?
A) Call emergency medical services (EMS).
B) Administer first aid and then call EMS.
C) Move John to a safer location before calling EMS.
D) Document the incident details immediately. - Correct Answer - B)
Administer first aid and then call EMS.
In industrial hygiene, which type of sampling method is primarily used
to measure workers' exposure to hazardous substances over an entire
shift?
A) Grab sampling
B) Continuous monitoring
C) Area sampling
pg. 4
STSC EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK| COMPLETE 350 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| STSC EXAM REVIEW 2025||
BRAND NEW!!
Which control measure is most effective in preventing unauthorized
entry into a confined space?
A) Implementing a permit-required confined space program.
B) Posting warning signs around the confined space.
C) Providing training on confined space hazards.
D) Using physical barriers like gates or locks. - Correct Answer - A)
Implementing a permit-required confined space program.
When controlling hazards on a construction site, which hierarchy of
controls should be prioritized first?
A) Personal protective equipment (PPE)
B) Administrative controls
C) Engineering controls
D) Elimination or substitution - Correct Answer - D) Elimination or
substitutes
A construction worker named John accidentally spills a container of
hazardous solvent. What is the most appropriate immediate action to
minimize health risks to workers in proximity?
A) Apply absorbent materials to soak up the solvent
pg. 1
,2|Page
B) Ensure all workers wear appropriate PPE
C) Ventilate the area by opening windows and doors
D) Evacuate all personnel from the affected area - Correct Answer - D)
Evacuate all personnel from the affected area
During a routine inspection, Safety Supervisor John notices that the
crane operator is lifting a load near a power line. What is the most
appropriate control measure to prevent crane-related electrical hazards?
A) Ensure the crane maintains a minimum clearance of 10 feet from the
power line.
B) Use insulating barriers to separate the crane from the power line.
C) De-energize and ground the power line before operating the crane.
D) Assign a spotter to monitor the distance between the crane and the
power line. - Correct Answer - C) De-energize and ground the power
line before operating the crane.
Maria has been working on a construction site under direct sunlight for
several hours without adequate hydration. She starts to feel weak, her
pulse becomes rapid but weak, and she begins sweating profusely. What
condition is Maria most likely experiencing?
A) Heat Cramps
B) Heat Exhaustion
C) Heat Stroke
D) Dehydration - Correct Answer - B) Heat Exhaustion
pg. 2
,3|Page
On a construction site, an oil spill catches fire near some flammable
materials. What is the best method for extinguishing this type of fire?
A) Water mist extinguisher
B) Foam extinguisher
C) Carbon dioxide (CO2) extinguisher
D) Wet chemical extinguisher - Correct Answer - B) Foam extinguisher
What emergency response equipment should be readily available on a
construction site to manage potential electrical hazards?
A) Insulated gloves
B) Fire blanket
C) Automated External Defibrillator (AED)
D) Eye wash station - Correct Answer - A) Insulated gloves
During an audit, Jane discovers that several workers are not wearing
personal protective equipment (PPE) in designated areas.
To mitigate this risk, what should Jane prioritize?
A) Enforce disciplinary actions for non-compliance.
B) Increase signage in designated PPE areas.
C) Conduct immediate refresher training on PPE usage.
D) Ensure availability of PPE at all entry points to designated areas. -
Correct Answer - C) Conduct immediate refresher training on PPE
usage.
pg. 3
, 4|Page
When conducting a Job Hazard Analysis (JHA) for a construction site,
which of the following steps is essential to accurately identify potential
hazards?
A) Reviewing past incident reports and near-misses.
B) Conducting a walkthrough of the sile wthout
involving workers.
C) Solely relying on safety data sheets (SDS) for hazard identification.
D) Implementing control measures before identifying all potential
hazards. - Correct Answer - A) Reviewing past incident reports and near-
misses.
On a construction site, a worker named John has sustained a serious
injury from falling debris. As the Safety Trained Supervisor, what should
be your immediate action?
A) Call emergency medical services (EMS).
B) Administer first aid and then call EMS.
C) Move John to a safer location before calling EMS.
D) Document the incident details immediately. - Correct Answer - B)
Administer first aid and then call EMS.
In industrial hygiene, which type of sampling method is primarily used
to measure workers' exposure to hazardous substances over an entire
shift?
A) Grab sampling
B) Continuous monitoring
C) Area sampling
pg. 4
