Other Skilled Trades Carpentry 3

Question 1

What is the purpose of a vapor barrier in floor framing over a crawl space?

Accepted Answer

To prevent moisture from rising into the floor structure

Answer

To insulate against heat loss

Answer

To block pest infiltration

Answer

To strengthen the subfloor

Question 2

What angle are interior door frames typically shimmed and plumbed to achieve?

Accepted Answer

Perfectly plumb at 90° to the floor

Answer

Perfectly level at 0°

Answer

Slightly angled at 85°

Answer

Angled to match the subfloor slope

Question 3

In US residential construction, what is the maximum allowable span for a 2x10 floor joist at 16 OC using #2 Douglas Fir?

Accepted Answer

17 feet

Answer

12 feet

Answer

15 feet

Answer

20 feet

Question 4

What tool is used to transfer a level line around all four walls of a room?

Accepted Answer

Laser level

Answer

Chalk line

Answer

Plumb bob

Answer

Speed square

Question 5

Which fastener is required when attaching a ledger board to a house rim joist for a deck?

Accepted Answer

Lag screws or through-bolts

Answer

Common nails

Answer

Finish nails

Answer

Deck screws

Question 6

What is the term for the horizontal distance a roof travels from the outside wall to the ridge?

Accepted Answer

Run

Answer

Span

Answer

Rise

Answer

Pitch