CSLB C-33 Painting & DecoratingSafetyHard
A painting contractor is setting up a pump-jack scaffold. What is the maximum height a pump-jack scaffold can reach before requiring additional bracing or engineering design?
- A40 feet
- B20 feet
- C30 feet
- D10 feet
Show answer & explanationAnswer & explanation
Correct answer: A. 40 feet
OSHA regulations state that pump-jack scaffolds can reach a maximum height of 40 feet. If the working height exceeds 40 feet, the scaffold must be designed by a registered professional engineer and constructed in accordance with that design. Below 40 feet, standard bracing and setup procedures apply.
Why the other options are wrong
- B. 20 feet is a common height for certain types of scaffolding, but not the maximum for pump-jack.
- C. 30 feet is below the maximum allowed height for pump-jack scaffolds.
- D. 10 feet is the threshold for fall protection on most scaffolds, not a height limit.
Pump-Jack Scaffold Height Limit
Pump-jack scaffolds can be used up to a maximum working height of 40 feet without requiring a specific engineering design.
- Beyond 40 feet, a registered professional engineer must design the scaffold.
- Components include poles, brackets, and a work platform.
- Used for painting, siding, and other exterior work.
Memory trick: Forty feet high, engineer's eye, or don't even try.