Verified Answers 2025|Already Graded A+
What is the minimum height at which OSHA requires fall protection in construction? - ANSWER
6 ft
Which class of the fire extinguisher is best for electrical fires? - ANSWER Class C
What is the primary purpose of Ground Fault Circuit Interrupter (GFCI)? - ANSWER Reduce the
risk of electrical shock
When using a circular saw, what PPE is required? - ANSWER Safety glasses, Ear protection, and
Gloves
What is the safest way to lift heavy materials on a job site? - ANSWER Use your legs and keep
your back straight
Which type of saw is best for making curved cuts in plywood? - ANSWER Jigsaw
What tool is used to check the squareness of a framed wall? - ANSWER Plumb bob
What is the purpose of a chalk line? - ANSWER Mark straight guidelines
Which hammer type is most commonly used for framing? - ANSWER Claw hammer
A nail gun should never be used without which safety feature? - ANSWER Contact trip
mechanism
, What does "O.C." stand for in blueprint reading? - ANSWER On center
How many inches are in 8 feet? - ANSWER 96 inches
If a wall is 10 feet long and the studs are spaced 16 inches O.C. how many studs are needed? -
ANSWER 9
What does a uniform dashed line represent on a blueprint? - ANSWER A hidden feature
What's the purpose of an elevation drawing? - ANSWER Displays a vertical view of a structure
What's the purpose of a header in a framed wall? - ANSWER To transfer loads around openings
What is the most common spacing for ceiling joists in residential construction? - ANSWER 16
inches O.C
What is the primary function of a sill plate? - ANSWER Anchor the wall framing to the
foundation
What is used to secure a floor joist to a beam? - ANSWER Joist hangers
What material is typically used for subflooring? - ANSWER Plywood
What is the minimum recommended curing time for concrete to reach full strength? - ANSWER
28 days
What is the primary ingredient is concrete that binds the mixture? - ANSWER Cement