STSC EXAM BANK AND PRACTICE EXAM WITH
STUDY GUIDE 2026 | ACCURATE ACTUAL EXAM
FREQUENTLY TESTED QUESTIONS WITH DETAILED
ANSWERS | GUARANTEED PASS | GRADED A |
LATEST UPDATE
Supervisors must verify what before assigning work? - CORRECT ANSWER ✔✔- 1.
Training
2. Certifications
3. Fit For Duty
What is the purpose of a Safety Inspection? - CORRECT ANSWER ✔✔- Identify
hazards and verify compliance
What are examples of safety inspection items? - CORRECT ANSWER ✔✔- 1. PPE
2. Guardrails
3. Electrical Hazards
4. Housekeeping
5. Equipment Condition
What are the 5 levels of hazard control? - CORRECT ANSWER ✔✔- 1. Elimination
2. Substitution
3. Engineering Controls (isolation and guarding)
4. Administrative Controls (training and work scheduling)
5 PPE
1
,Which control is most effective? - CORRECT ANSWER ✔✔- Elimination
What is hot work? - CORRECT ANSWER ✔✔- Work that produces heat, sparks, or
flame (I.e welding, cutting and grinding)
What are key hot works controls? - CORRECT ANSWER ✔✔- 1. Hot Work Permit
2. Remove Flammables
3. Fire Watch
4. Fire Extinguisher Nearby
What are the main electrical hazards? - CORRECT ANSWER ✔✔- 1. Shock
2. Arc Flash
3. Burns
4. Electrocution
What device prevents shock on construction sites? - CORRECT ANSWER ✔✔- GFCI
What is an excavation hazard? - CORRECT ANSWER ✔✔- Cave-Ins
What are the controls for trench safety? - CORRECT ANSWER ✔✔- 1. Sloping
2. Shoring
3. Shielding (trench box)
2
,Who inspects excavations? - CORRECT ANSWER ✔✔- Competent Person
What defines a confined space? - CORRECT ANSWER ✔✔- 1. Limited entry/exit
2. Not designed for continuous occupancy
3. Large enough for bodily entry
What is a thermal stress hazard? - CORRECT ANSWER ✔✔- Health hazard caused
by extreme temperatures (either hot or cold)
What are types of hearing protection? - CORRECT ANSWER ✔✔- Earplugs
Earmuffs
Double Protection (Earplugs and Earmuffs combined) - used in areas with
>100dBA
What are examples of confined spaces? - CORRECT ANSWER ✔✔- 1. Tanks
2. Manholes
3. Vaults
What is the leading construction fatality category? - CORRECT ANSWER ✔✔-
Struck By Hazards
What are examples of Struck By Hazards? - CORRECT ANSWER ✔✔- 1. Falling
Objects
2. Moving Equipment
3. Flying Particles
3
, What are caught between hazards? - CORRECT ANSWER ✔✔- Workers get caught
between equipment, materials or collapsing structures.
What are examples of caught between hazards? - CORRECT ANSWER ✔✔- 1.
Trench Cave Ins
2. Equipment Pinch Points
Who is responsible for PPE? - CORRECT ANSWER ✔✔- Employer provides and
ensures use
What must supervisors check for in regards to worker-supplied PPE? - CORRECT
ANSWER ✔✔- 1. Correct Type
2. Good Condition
3. Proper Approval Standards
What is the OSHA fall protection trigger height? - CORRECT ANSWER ✔✔- 6 feet
What is the minimum guardrail height? - CORRECT ANSWER ✔✔- 42 inches
Ladders must extend how far before landing? - CORRECT ANSWER ✔✔- 36 inches
Who approves scaffold use? - CORRECT ANSWER ✔✔- Competent Person
4
STUDY GUIDE 2026 | ACCURATE ACTUAL EXAM
FREQUENTLY TESTED QUESTIONS WITH DETAILED
ANSWERS | GUARANTEED PASS | GRADED A |
LATEST UPDATE
Supervisors must verify what before assigning work? - CORRECT ANSWER ✔✔- 1.
Training
2. Certifications
3. Fit For Duty
What is the purpose of a Safety Inspection? - CORRECT ANSWER ✔✔- Identify
hazards and verify compliance
What are examples of safety inspection items? - CORRECT ANSWER ✔✔- 1. PPE
2. Guardrails
3. Electrical Hazards
4. Housekeeping
5. Equipment Condition
What are the 5 levels of hazard control? - CORRECT ANSWER ✔✔- 1. Elimination
2. Substitution
3. Engineering Controls (isolation and guarding)
4. Administrative Controls (training and work scheduling)
5 PPE
1
,Which control is most effective? - CORRECT ANSWER ✔✔- Elimination
What is hot work? - CORRECT ANSWER ✔✔- Work that produces heat, sparks, or
flame (I.e welding, cutting and grinding)
What are key hot works controls? - CORRECT ANSWER ✔✔- 1. Hot Work Permit
2. Remove Flammables
3. Fire Watch
4. Fire Extinguisher Nearby
What are the main electrical hazards? - CORRECT ANSWER ✔✔- 1. Shock
2. Arc Flash
3. Burns
4. Electrocution
What device prevents shock on construction sites? - CORRECT ANSWER ✔✔- GFCI
What is an excavation hazard? - CORRECT ANSWER ✔✔- Cave-Ins
What are the controls for trench safety? - CORRECT ANSWER ✔✔- 1. Sloping
2. Shoring
3. Shielding (trench box)
2
,Who inspects excavations? - CORRECT ANSWER ✔✔- Competent Person
What defines a confined space? - CORRECT ANSWER ✔✔- 1. Limited entry/exit
2. Not designed for continuous occupancy
3. Large enough for bodily entry
What is a thermal stress hazard? - CORRECT ANSWER ✔✔- Health hazard caused
by extreme temperatures (either hot or cold)
What are types of hearing protection? - CORRECT ANSWER ✔✔- Earplugs
Earmuffs
Double Protection (Earplugs and Earmuffs combined) - used in areas with
>100dBA
What are examples of confined spaces? - CORRECT ANSWER ✔✔- 1. Tanks
2. Manholes
3. Vaults
What is the leading construction fatality category? - CORRECT ANSWER ✔✔-
Struck By Hazards
What are examples of Struck By Hazards? - CORRECT ANSWER ✔✔- 1. Falling
Objects
2. Moving Equipment
3. Flying Particles
3
, What are caught between hazards? - CORRECT ANSWER ✔✔- Workers get caught
between equipment, materials or collapsing structures.
What are examples of caught between hazards? - CORRECT ANSWER ✔✔- 1.
Trench Cave Ins
2. Equipment Pinch Points
Who is responsible for PPE? - CORRECT ANSWER ✔✔- Employer provides and
ensures use
What must supervisors check for in regards to worker-supplied PPE? - CORRECT
ANSWER ✔✔- 1. Correct Type
2. Good Condition
3. Proper Approval Standards
What is the OSHA fall protection trigger height? - CORRECT ANSWER ✔✔- 6 feet
What is the minimum guardrail height? - CORRECT ANSWER ✔✔- 42 inches
Ladders must extend how far before landing? - CORRECT ANSWER ✔✔- 36 inches
Who approves scaffold use? - CORRECT ANSWER ✔✔- Competent Person
4
