SAFETY
When should a hard hat be worn?
Wherever there is a danger of falling objects.
The most common spacing of wood joists is _____″ OC.
16
Full-length studs become _____ when they end due to an opening
CRIPPLE STUD
What are the dimensions of a 2×4 that has been dressed and dried?
1 1/2″ × 3 1/2″
List the four leading causes of death for construction workers on the jobsite.
FALL, STRUCK BY AN OBJECT, STUCK IN BETWEEN, ELECTRICUTION
True or False? Regular bridging is designed to keep joists in vertical position and transfer the load from one joist to the next.
TRUE
Rough door openings are generally made _____ to _____ wider than the finished door size.
2″, 2 1/2″
Light gage steel framing is used only in commercial construction.
no/false
The purpose of OSHA is to _____
ensure safe and healthful working conditions
All plywood and OSB expands slightly, so when installing, leave a _____″ gap between edges and end of sheets.
1/8
How many wall sheathing sheets are needed for a net area of 1460 sq. ft. and the selected sheets are 4′ × 8′?
46
Which of the following kinds of wood is classified as a hardwood?
Hemlock
Redwood
Oak
All of the above.
oak
When excavating a trench, a protective system such as shoring or a trench box must be installed at a depth of _____.
5'
How many sheets of 4′×8′ sheathing are needed for a subfloor that is 28' x 43'? (Assume no floor openings and no extra sheathing for waste.)
38
Explain the purpose of a header in a structural wall.
Carry loads – It transfers the weight of the roof, floor, or wall above the opening to the jack (trimmer) studs on each side.
Distribute forces – Instead of the load bearing down directly on the top of the opening, the header spreads the load to the framing around it.
Maintain wall strength – Prevents sagging, cracking, or failure around openings, keeping the structural integrity of the wall.
What are the dimensions of a 2×8 that has been dressed and dried?
1 1/2″ × 7 1/4″
An electrical fire is classified as a Class _____ fire.
CLASS C
EXPLAIN THE DIFFERENCE BETWEEN PLATFORM FRAMING AND BALLOON FRAMING
Platform framing = each floor is framed separately, standard today.
Balloon framing = studs run full height of building, mostly historic.
Using 120′ for the wall length, assume there are 6 corners, 5 intersections, 10 openings, and the framing is 24″ OC. Find the number of studs needed, including outside walls and partitions.
102 studs
What are the advantages to 2 x 6 wall framing?
Structural strength
A 2×6 wall can carry more load, so it’s often required for taller walls, multi-story buildings, or high snow/wind load areas.
More insulation space
A 2×6 stud is 5½″ deep vs. 3½″ for a 2×4. That extra 2″ allows for thicker insulation, improving energy efficiency and helping meet modern energy codes.
Soundproofing
Thicker walls can reduce sound transfer between rooms or from outdoors.
Durability and straightness
2×6 studs are generally stronger and less likely to warp over time.