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NCCER/OSHA SCAFFOLD SG EXAM NEWEST VERSION -
2025/2026- 100+ QUESTIONS AND VERIFIED ANSWERS 100%
CORRECT GUARANTEED SUCCESS
Boards or wooden pad placed on the soil to support scaffold legs are? Mudsills The tube of a tube and clamp scaffold is normally what size O.D.? 1.9 Inches Scaffold decks that overlap a minimum of how many inches, unless secured in some other way? 12 Osha requires a rest landing at intervals not exceed: 35 feet The top handrail of a scaffold must be able to withstand how many pounds of pressure? 200 When Building a scaffold inside a "goggle area" Everyone inside the area must wear goggles The ladder should be located on a mobile scaffold will not tip over When should ties be installed? During the erection process What body produces the primary Code or regulations guiding the scaffolding industry?
OSHA (Occupational Safety and Healthy Agency) What should be used to erect scaffolding on uneven ground? Leveling Jacks OSAH specifically prohibits the use of? Lean to scaffolds the bearer in a tube and clamp scaffold is always? Placed above the adjacent runner. What must a rolling scaffold have on each caster or roller? Positive locking device Who must inspect a scaffold each work shift and after any occurrence which could effect a scaffold's structural integrity? Competent person What is the minimum tensile strength of D-rings and snap hooks on a safety harness? 5,000 pounds What part of the picture is identified by the letter "G"? Sill or mudsill what part of the scaffold is identified by letter "A"? Guardrail What part of the scaffold is identified by the letter "C"? Runner What part of the scaffold is identified by the letter "F"? Base plate When is it allowed to notch out scaffold planks to make them fit?
To safely use any type of wrench, the wrench should? Pushed away from the body Scaffold wrenches are specifically designed to? Tighten and loosen the nuts on tube and coupler scaffold system. What is the standard nut size on a scaffold clamp 7/8 Inches Powered hoist are limited to a maximum speed of how many feet per minute? 35 When a claw hammer is used, the scaffold builder should use what type of safety equipment (as recommended by the manufacture)? Eye protection What is the circumference of a tank with 40 feet diameter? 125.6 feet Which of the following is a fall prevention device that can mounted horizontally or vertically on steel columns? Beam clamp What square footage of a 5x7 scaffold? 35 How many pounds of equipment and/or material can be safely placed on a 5' x 7' medium duty scaffold platform? 1, Special consideration Must be given to scaffolds enclosed by "tarps" or plastic sheeting because? high winds can impose tremendous force
What is the load limit for a medium duty 4' x 8' scaffold? 1600 How many right angles are used in a scaffold with four wraps? 32 What is the sum of 3 feet 10 inches + 7 feet 9 inches + 1 foot 7 inches? 13 feet 2 inches How many 19 inch wide manufactured scaffold boards are required to deck out a 7' x 7' scaffold? Four What is the sum of 3' 10" + 7' 9" + 1' 7"? 13 feet 2 inches Who is responsible for the erection of a safe scaffold? Scaffold builder Approximately what amount of torque should be used to tighten a clamp? 45 ft/lbs How many 9 foot 9 inch vertical or upright posts are normally needed for one leg of a scaffold that will be 39 feet high at the top of the handrail? 4 The crew is putting a ladder on a system scaffold ladders are available in 4 foot or 7 foot lengths. The elevation of the scaffold plank on the first rest platform is 10 feet. Which combination below is required for a worker to safely reach the first rest platform? Three 7 foot sections and one 4 foot section How many 6 foot tubes are on a 4' x 6' scaffold with six wraps? 12
Twist lock or open tube base plates What type of clamp is used to put a diagonal brace on a tube and coupler scaffold? Swivel When installing a stationary scaffold, when should ties be installed? During the erection process According OSHA, a medium duty scaffold is designed and constructed to carry a working load of how many pounds per square foot? 50 To prevent damage to the hoisting equipment or to avoid overturning the scaffold, Always ensure that the weight to be lifted does not exceed the? rated load On a tube and clamp scaffold, diagonal are usually installed at a? 45 degree angle The bearers for a working platform on a typical tube and clamp scaffold are installed? Above the runners On a tube and clamp scaffold right angle clamps are used to? Join horizontal poles to vertical poles What should be used to brace mobile scaffolds properly? Both cross bracing and horizontal bracing When hanging a scaffold is erected on the side of a tower, good practice Requires that a safety clamp be placed on the? Top and bottom corners of a diagonal brace A putlog is a truss used in scaffolding applications where?
Bridging over an obstruction is required One of the builder's first tasks in any type of scaffold assembly should be to gather all necessary scaffold components and inspect them for any damage What is the maximum allowable distance between wraps? 6 feet 6 inches Safety lifeline on suspension scaffolds must be tied off to anchor points other than those used to support the scaffold Swing gates used as a means of access must be installed so that they may swing toward the platform When screw jacks are adjusted to level scaffolding, they should Never exceed a 12 inch extension The footing or anchorage for scaffolds must be capable of carrying the maximum intended load without: Tying or guying Erectors of a scaffold who exposed to potential falling object hazards shall be provided with: Over head protection When material are being hoisted to an upper level, a tag line is used to Help guide the load When bearers are coupled directly to the runners, the coupler must be kept As close to the post as possible what should be used to brace tubular welded frame scaffolds? Cross bracing, diagonal bracing, or both Adjustings screw jacks are used to
On a light duty tube and clamp scaffold, the scaffold post should not exceed 4' x 10' Which of the following is a leveling device located at the base of a scaffold? Screw jacks Cross braces and diagonal braces on a fabricated frame scaffold should be installed to ensure that vertical members are aligned, so that the scaffold will be plumb, square, and rigid OSHA defines runners as the horizontal tubes that run in the same direction as the scaffold planks What bracing is placed between opposite corners to keep the scaffold plumb and secure? Diagonal What is used to stabilize a rolling scaffold being moved on a surface with a 2-inch drop? Outrigger A licensed professional engineer shall design all scaffold erected higher than how many feet? 125 According to OSHA, what is the maximum allowable distance between different levels of ledger wraps and runners? 6 feet 6 inches On a medium duty tube and clamp scaffold, the scaffold post spacing for nominal 2 - inch O.D. steel tube or pipe should be a maximum of 4' x 7'
What must a competent person have to implement corrective action promptly, in order to eliminate hazardous working conditions? Authority A rolling scaffold must have a horizontal diagonal brace What should be the builder's first task in any type of scaffold assembly? Gather all necessary scaffold components and inspect them for any damage Where may diagonal bracing be attached if it cannot be attached to the post? Runners/ledgers Why is it important to use locking pins casters? Keep wheels attached to the frame Swivel clamps should be installed so that if the clamp opens, the tube will not fail What grade of planking should be used for scaffolding? Scaffold grade Casters on a rolling scaffold should be locked before assembly Who is responsible for the erection of a safe scaffold? Scaffold Builder What is the maximum allowable height that an 8' x 10' rolling scaffold can be built? 32 feet Mobile scaffold platforms shall be cleated
What is the minimum number of wraps the winding drums on a suspension scaffold should have at the lowest point travel? 2 Which of the following are used to increase a mobile scaffold's stage? Outriggers On a tube and clamp scaffold, swivel clamp are used to Join diagonal tubes at various angles Casters used on rolling scaffolds must have a positive locking device What must a rolling scaffold have if a ladder is mounted inside the frame? A trap door Ropes and cables used to support a suspension must be able to support minimum of how many times the rated load? 6 Who should be consulted when rigging a multiple point suspended scaffold? Qualified person
