Construction Site Safety Technician (CSST) Exam
2026-2027 • 100 Questions • 100% VERIFIED
Introduction
This assessment serves as a definitive examination evaluation resource for candidates preparing
for the Construction Site Safety Technician (CSST) Exam (2026-2027) Comprehensive Assessment.
Designed to measure technical expertise in construction hazard recognition and regulatory safety
enforcement, this question bank rigorously addresses key content domains mapped to the official
CSST and OSHA 1926 blueprint. Key domains evaluated include OSHA Regulations, Fall Protection
Systems, Hazard Communication, Scaffolding Safety, Excavation and Trenching Standards, Personal
Protective Equipment (PPE), Emergency Response Protocols, and Site Inspection Procedures.
Mastery of these safety standards and hazard control protocols is essential for achieving
professional certification, protecting worker lives, and executing high-standard safety oversight
across complex construction site operations.
Question 1: Under OSHA 1926 Subpart M, what is the mandatory trigger height for implementing
fall protection systems during general construction operations?
A) 6 feet (1.8 meters) above a lower level.
B) 10 feet (3.0 meters) above a lower level.
C) 15 feet (4.5 meters) above a lower level.
D) 20 feet (6.0 meters) above a lower level.
Correct Answer: A) 6 feet (1.8 meters) above a lower level.
Rationale: OSHA 29 CFR 1926.501(b)(1) mandates that each employee on a walking/working
surface with an unprotected side or edge which is 6 feet or more above a lower level shall be
protected from falling by guardrail systems, safety net systems, or personal fall arrest systems.
Question 2: What is the minimum static tensile strength required for an anchorage point used for a
Personal Fall Arrest System (PFAS) under OSHA 1926.502?
A) 2,500 pounds (11.1 kN) per attached worker.
B) 5,000 pounds (22.2 kN) per attached worker, or designed as part of a complete system with
a safety factor of two.
C) 7,500 pounds (33.3 kN) per attached worker.
D) 10,000 pounds (44.4 kN) per attached worker.
Correct Answer: B) 5,000 pounds (22.2 kN) per attached worker, or designed as part of a
complete system with a safety factor of two.
Rationale: OSHA 1926.502(d)(15) specifies that anchorages used for PFAS attachment must be
capable of supporting at least 5,000 pounds per employee attached, or be designed, installed,
and used under the supervision of a qualified person as part of a complete PFAS with a safety
factor of at least two.
,Question 3: Under OSHA 1926 Subpart P, at what excavation depth is a protective system (sloping,
benching, shoring, or shielding) mandatory unless the excavation is made entirely in stable rock?
A) 3 feet (0.9 meters).
B) 4 feet (1.2 meters).
C) 5 feet (1.5 meters).
D) 8 feet (2.4 meters).
Correct Answer: C) 5 feet (1.5 meters).
Rationale: OSHA 1926.652(a)(1) requires protective systems in excavations 5 feet or deeper,
unless the excavation is made entirely in stable rock. For excavations under 5 feet, a competent
person must inspect to determine if a protective system is needed due to cave-in potential.
Question 4: What is the maximum allowable travel distance to a ladder, ramp, or stairway egress in
a trench or excavation that is 4 feet or more in depth?
A) 100 feet (30.5 meters).
B) 75 feet (22.8 meters).
C) 50 feet (15.2 meters).
D) 25 feet (7.6 meters).
Correct Answer: D) 25 feet (7.6 meters).
Rationale: OSHA 1926.651(c)(2) mandates that a stairway, ladder, ramp or other safe means of
egress shall be located in trench excavations that are 4 feet or more in depth so as to require no
more than 25 feet of lateral travel for employees.
Question 5: According to OSHA 1926 Subpart L, a supported scaffold must be capable of
supporting its own weight and at least how many times the maximum intended load?
A) 4 times the maximum intended load.
B) 2 times the maximum intended load.
C) 3 times the maximum intended load.
D) 5 times the maximum intended load.
Correct Answer: A) 4 times the maximum intended load.
Rationale: OSHA 1926.451(a)(1) dictates that each scaffold and scaffold component must be
capable of supporting, without failure, its own weight and at least 4 times the maximum
intended load applied or transmitted to it.
Question 6: At what height above a lower level must guardrails or personal fall arrest systems be
installed on supported scaffolds under OSHA 1926 Subpart L?
A) 6 feet (1.8 meters).
B) 10 feet (3.0 meters).
C) 12 feet (3.6 meters).
D) 15 feet (4.5 meters).
Correct Answer: B) 10 feet (3.0 meters).
, Rationale: OSHA 1926.451(g)(1) establishes that employees on a scaffold more than 10 feet
above a lower level must be protected from falling by guardrail systems or personal fall arrest
systems.
Question 7: What is the maximum height-to-base ratio permitted for a supported scaffold before
restraint systems (such as guy lines, ties, or braces) must be installed to prevent tipping?
A) 2:1 ratio.
B) 3:1 ratio.
C) 4:1 ratio.
D) 5:1 ratio.
Correct Answer: C) 4:1 ratio.
Rationale: OSHA 1926.451(c)(1) requires that supported scaffolds with a height-to-base width
ratio of more than 4:1 must be restrained from tipping by guying, tying, bracing, or equivalent
means.
Question 8: Under OSHA Hazard Communication Standard (1926..1200), how many
mandatory standardized sections are included in a Safety Data Sheet (SDS)?
A) 8 sections.
B) 10 sections.
C) 12 sections.
D) 16 sections.
Correct Answer: D) 16 sections.
Rationale: Under the GHS-aligned Hazard Communication Standard, Safety Data Sheets (SDS)
follow a strict 16-section standardized format detailing chemical hazards, composition, first aid,
handling, exposure controls, and spill response.
Question 9: Which GHS hazard pictogram symbol indicates chemicals that are severe skin
corrosives, cause eye damage, or cause metal corrosion?
A) Corrosion pictogram (chemical poured onto hand and metal surface).
B) Exclamation mark pictogram.
C) Health hazard pictogram (star on chest).
D) Flame over circle pictogram.
Correct Answer: A) Corrosion pictogram (chemical poured onto hand and metal surface).
Rationale: The Corrosion pictogram depicts chemical liquids poured onto a metal surface and a
human hand, representing skin corrosion/burns, serious eye damage, and corrosive to metals.
Question 10: Under OSHA 1926 Subpart F, what is the maximum allowable travel distance to a
portable fire extinguisher on a construction site?
A) 50 feet (15.2 meters).
B) 100 feet (30.5 meters) for 2A-rated extinguishers.
2026-2027 • 100 Questions • 100% VERIFIED
Introduction
This assessment serves as a definitive examination evaluation resource for candidates preparing
for the Construction Site Safety Technician (CSST) Exam (2026-2027) Comprehensive Assessment.
Designed to measure technical expertise in construction hazard recognition and regulatory safety
enforcement, this question bank rigorously addresses key content domains mapped to the official
CSST and OSHA 1926 blueprint. Key domains evaluated include OSHA Regulations, Fall Protection
Systems, Hazard Communication, Scaffolding Safety, Excavation and Trenching Standards, Personal
Protective Equipment (PPE), Emergency Response Protocols, and Site Inspection Procedures.
Mastery of these safety standards and hazard control protocols is essential for achieving
professional certification, protecting worker lives, and executing high-standard safety oversight
across complex construction site operations.
Question 1: Under OSHA 1926 Subpart M, what is the mandatory trigger height for implementing
fall protection systems during general construction operations?
A) 6 feet (1.8 meters) above a lower level.
B) 10 feet (3.0 meters) above a lower level.
C) 15 feet (4.5 meters) above a lower level.
D) 20 feet (6.0 meters) above a lower level.
Correct Answer: A) 6 feet (1.8 meters) above a lower level.
Rationale: OSHA 29 CFR 1926.501(b)(1) mandates that each employee on a walking/working
surface with an unprotected side or edge which is 6 feet or more above a lower level shall be
protected from falling by guardrail systems, safety net systems, or personal fall arrest systems.
Question 2: What is the minimum static tensile strength required for an anchorage point used for a
Personal Fall Arrest System (PFAS) under OSHA 1926.502?
A) 2,500 pounds (11.1 kN) per attached worker.
B) 5,000 pounds (22.2 kN) per attached worker, or designed as part of a complete system with
a safety factor of two.
C) 7,500 pounds (33.3 kN) per attached worker.
D) 10,000 pounds (44.4 kN) per attached worker.
Correct Answer: B) 5,000 pounds (22.2 kN) per attached worker, or designed as part of a
complete system with a safety factor of two.
Rationale: OSHA 1926.502(d)(15) specifies that anchorages used for PFAS attachment must be
capable of supporting at least 5,000 pounds per employee attached, or be designed, installed,
and used under the supervision of a qualified person as part of a complete PFAS with a safety
factor of at least two.
,Question 3: Under OSHA 1926 Subpart P, at what excavation depth is a protective system (sloping,
benching, shoring, or shielding) mandatory unless the excavation is made entirely in stable rock?
A) 3 feet (0.9 meters).
B) 4 feet (1.2 meters).
C) 5 feet (1.5 meters).
D) 8 feet (2.4 meters).
Correct Answer: C) 5 feet (1.5 meters).
Rationale: OSHA 1926.652(a)(1) requires protective systems in excavations 5 feet or deeper,
unless the excavation is made entirely in stable rock. For excavations under 5 feet, a competent
person must inspect to determine if a protective system is needed due to cave-in potential.
Question 4: What is the maximum allowable travel distance to a ladder, ramp, or stairway egress in
a trench or excavation that is 4 feet or more in depth?
A) 100 feet (30.5 meters).
B) 75 feet (22.8 meters).
C) 50 feet (15.2 meters).
D) 25 feet (7.6 meters).
Correct Answer: D) 25 feet (7.6 meters).
Rationale: OSHA 1926.651(c)(2) mandates that a stairway, ladder, ramp or other safe means of
egress shall be located in trench excavations that are 4 feet or more in depth so as to require no
more than 25 feet of lateral travel for employees.
Question 5: According to OSHA 1926 Subpart L, a supported scaffold must be capable of
supporting its own weight and at least how many times the maximum intended load?
A) 4 times the maximum intended load.
B) 2 times the maximum intended load.
C) 3 times the maximum intended load.
D) 5 times the maximum intended load.
Correct Answer: A) 4 times the maximum intended load.
Rationale: OSHA 1926.451(a)(1) dictates that each scaffold and scaffold component must be
capable of supporting, without failure, its own weight and at least 4 times the maximum
intended load applied or transmitted to it.
Question 6: At what height above a lower level must guardrails or personal fall arrest systems be
installed on supported scaffolds under OSHA 1926 Subpart L?
A) 6 feet (1.8 meters).
B) 10 feet (3.0 meters).
C) 12 feet (3.6 meters).
D) 15 feet (4.5 meters).
Correct Answer: B) 10 feet (3.0 meters).
, Rationale: OSHA 1926.451(g)(1) establishes that employees on a scaffold more than 10 feet
above a lower level must be protected from falling by guardrail systems or personal fall arrest
systems.
Question 7: What is the maximum height-to-base ratio permitted for a supported scaffold before
restraint systems (such as guy lines, ties, or braces) must be installed to prevent tipping?
A) 2:1 ratio.
B) 3:1 ratio.
C) 4:1 ratio.
D) 5:1 ratio.
Correct Answer: C) 4:1 ratio.
Rationale: OSHA 1926.451(c)(1) requires that supported scaffolds with a height-to-base width
ratio of more than 4:1 must be restrained from tipping by guying, tying, bracing, or equivalent
means.
Question 8: Under OSHA Hazard Communication Standard (1926..1200), how many
mandatory standardized sections are included in a Safety Data Sheet (SDS)?
A) 8 sections.
B) 10 sections.
C) 12 sections.
D) 16 sections.
Correct Answer: D) 16 sections.
Rationale: Under the GHS-aligned Hazard Communication Standard, Safety Data Sheets (SDS)
follow a strict 16-section standardized format detailing chemical hazards, composition, first aid,
handling, exposure controls, and spill response.
Question 9: Which GHS hazard pictogram symbol indicates chemicals that are severe skin
corrosives, cause eye damage, or cause metal corrosion?
A) Corrosion pictogram (chemical poured onto hand and metal surface).
B) Exclamation mark pictogram.
C) Health hazard pictogram (star on chest).
D) Flame over circle pictogram.
Correct Answer: A) Corrosion pictogram (chemical poured onto hand and metal surface).
Rationale: The Corrosion pictogram depicts chemical liquids poured onto a metal surface and a
human hand, representing skin corrosion/burns, serious eye damage, and corrosive to metals.
Question 10: Under OSHA 1926 Subpart F, what is the maximum allowable travel distance to a
portable fire extinguisher on a construction site?
A) 50 feet (15.2 meters).
B) 100 feet (30.5 meters) for 2A-rated extinguishers.
