Flashcards in Scaffold Deck (47)
A suspension scaffold consisting of a platform essentially supported by horizontal and parallel ropes with a vertical pick-up is a?
When using scaffolding boards, the space between the boards cannot be more than:
Scaffold platforms and walkways shall be at least how wide?
The maximum distance from the face for outrigger scaffolds shall be:
Each end of a platform must extend over the centerline of its support at least:
A scaffolding platform longer than 10 feet shall not extend over its support more than:
Overlapping scaffolds must overlap each other by:
Wood platforms may not be painted so as to cover the wood finish, but they can have:
Wood preservatives and slip-resistant finishes applied
Scaffold components manufactured by different manufacturers:
Shall not be intermixed
Scaffolds must be assembled:
As per manufacturer’s recommendations
Supported scaffold poles shall bear on:
Base plates and mud sills
Defective ropes on scaffolds shall be:
When hook-on and attachable ladders are used on a supported scaffold more than 35 feet high, they shall have rest platforms at what maximum vertical intervals?
Steps accessing a scaffolding platform shall have a minimum width of:
The minimum clearance between scaffolds and insulated power lines with less than 300 volts shall be:
Employees shall be prohibited from working on scaffolds covered with snow, ice or other slippery material, except?
For removal of such materials
Scaffolding platforms shall not deflect more than how much of the span when loaded?
Each employee on a scaffold must be protected from falling when the scaffold is how far above the lower level?
Guardrail systems shall be installed:
Along all open sides and ends of platforms
What is the MINIMUM height for guardrails on scaffolding manufactured after January 1, 2000?
With Pole scaffolds when platforms are being moved to the next level:
Leave the existing platform undisturbed until new bearers have been set
All ladder jack scaffolds shall be limited to light duty and shall not exceed a height of how many feet above the floor or ground?
Wire ropes on catenary scaffolds shall:
Be continuous and not have splices between anchors
Scaffold casters and wheels shall be:
Locked with positive wheel and/or wheel and swivel locks
Who may supervise the erection and disassembling of scaffolding?
Only employees who are trained and qualified
Float or ship scaffolds shall not be used to support more than how many people and a few light tools?
What is the MAXIMUM permissible span for a 2 x 10 full thickness undressed lumber plank with a working load of 25 psf?
Scaffold components must be able to support what without failure?
Its own weight and four times the maximum intended load
Each ladder jack scaffold, top plate bracket scaffold, roof bracket and pump jack must be at least how wide?