CHST CHST - Construction Health and Safety Technician Scaffolding and Elevated Work Platforms Questions and Answers 1 — Questions and Answers
Question 1: According to OSHA 29 CFR 1926.451, what is the minimum load capacity a scaffold must support?
- 2 times the intended load
- 3 times the intended load
- 4 times the intended load (Correct answer)
- 5 times the intended load
Correct answer: 4 times the intended load
OSHA requires scaffolds to be capable of supporting at least 4 times the maximum intended load.
Question 2: Who is qualified to design a scaffold system that must support a load exceeding its rated capacity?
- Any competent person
- A registered professional engineer (Correct answer)
- The scaffold manufacturer's representative
- The general contractor's safety officer
Correct answer: A registered professional engineer
A registered professional engineer must design scaffolding systems when loads exceed standard rated capacities.
Question 3: What is the maximum allowable gap between a scaffold platform and the face of the work for plastering or lathing operations?
- 6 inches
- 10 inches
- 14 inches (Correct answer)
- 18 inches
Correct answer: 14 inches
OSHA permits a maximum 14-inch gap between the scaffold platform and the work face for plastering or lathing.
Question 4: When must a scaffold be inspected by a competent person?
- Before each work shift and after any event that could affect structural integrity (Correct answer)
- Once per week during use
- Only before initial erection
- At the beginning of each new work week
Correct answer: Before each work shift and after any event that could affect structural integrity
OSHA requires scaffold inspection before each work shift and after any occurrence that could affect the scaffold's structural integrity.
Question 5: What is the minimum distance a scaffold must be maintained from power lines rated at 50 kV or less?
- 3 feet
- 7 feet
- 10 feet (Correct answer)
- 20 feet
Correct answer: 10 feet
OSHA 1926.416 requires scaffolds to be kept at least 10 feet away from power lines rated at 50 kV or below.
Question 6: Under OSHA standards, workers on scaffolds more than 10 feet above a lower level must be protected by:
- A safety net only
- Personal fall arrest system only
- Guardrail system only
- Guardrail system, personal fall arrest system, or safety net (Correct answer)
Correct answer: Guardrail system, personal fall arrest system, or safety net
OSHA allows any combination of guardrails, personal fall arrest systems, or safety nets to protect workers on scaffolds above 10 feet.
CHST CHST - Construction Health and Safety Technician Scaffolding and Elevated Work Platforms Questions and Answers 1
According to OSHA 29 CFR 1926.451, what is the minimum load capacity a scaffold must support?