#1
Which of the following is NOT a common type of scaffold?
Static scaffold
ExplanationStatic scaffold is not a common type of scaffold; other common types include supported, suspended, and mobile scaffolds.
#2
Which organization sets safety standards for scaffolding in the United States?
OSHA
ExplanationOSHA (Occupational Safety and Health Administration) sets safety standards for scaffolding in the United States.
#3
What is the primary purpose of base plates on scaffolds?
To provide stability
ExplanationBase plates on scaffolds primarily serve the purpose of providing stability to the structure.
#4
Which of the following is NOT a potential hazard associated with scaffolds?
Fire hazards
ExplanationFire hazards are not typically associated with scaffolds; other potential hazards include falls, instability, and falling objects.
#5
What is the purpose of toeboards on scaffolds?
To prevent materials and debris from falling
ExplanationToeboards on scaffolds prevent materials and debris from falling, enhancing safety.
#6
What is the minimum safety factor for scaffolds according to OSHA regulations?
3
ExplanationThe minimum safety factor for scaffolds according to OSHA regulations is 3, ensuring stability and safety.
#7
What is the main purpose of guardrails on scaffolds?
To provide fall protection
ExplanationGuardrails on scaffolds serve the main purpose of providing fall protection for workers.
#8
What is the maximum gap allowed between the scaffold planks and the scaffold frame?
1 inch
ExplanationThe maximum gap allowed between scaffold planks and the scaffold frame is 1 inch, preventing hazards.
#9
According to OSHA regulations, how often should scaffolds be inspected?
Before each use
ExplanationAccording to OSHA regulations, scaffolds should be inspected before each use to ensure safety.
#10
What is the recommended maximum height for a scaffold before additional fall protection measures are required?
20 feet
ExplanationAdditional fall protection measures are recommended for scaffolds exceeding 20 feet in height.
#11
What is a 'competent person' responsible for in scaffold safety?
Ensuring that scaffolds are constructed properly
ExplanationA 'competent person' in scaffold safety is responsible for ensuring that scaffolds are constructed properly to meet safety standards.
#12
What is the maximum allowable gap between scaffold planks?
1 inch
ExplanationThe maximum allowable gap between scaffold planks is 1 inch, ensuring a secure working platform.
#13
What is the minimum clearance required between the scaffold and power lines?
6 feet
ExplanationA minimum clearance of 6 feet is required between the scaffold and power lines to prevent electrical hazards.
#14
What is the recommended maximum spacing between scaffold ties?
4 feet horizontally and 6 feet vertically
ExplanationThe recommended maximum spacing between scaffold ties is 4 feet horizontally and 6 feet vertically, ensuring stability.
#15
What is the maximum allowable gap between scaffold planks and the uprights?
1 inch
ExplanationThe maximum allowable gap between scaffold planks and the uprights is 1 inch, maintaining a secure platform.