4-43.
Which of the following inlet
ventilation systems is recommended
for use on low-pitched flat roofs
with overhangs?
1.
Continuous slot
2.
Ridge
3.
Louvered
4.
Wall
4-44.
What is the primary advantage of
softwood flooring over hardwood
flooring?
1.
Less dense
2.
Lower cost
3.
Improved wear resistance
4.
Easier to maintain
4-45.
Subfloor boards are normally laid
over joists in what direction?
1.
Parallel
2.
Diagonal
3.
Perpendicular
4-46.
Building paper is used over
subfloors to reduce
1.
noise and dust only
2.
dust and air flow only
3.
air flow and noise only
4.
all of the above
4-47.
What factor usually causes cracks
to appear in finish floors several
months after the floor has been
laid?
1.
Expansion of subfloor material
2.
Absorption of moisture after
delivery
3.
Poor nailing
4.
Weak floor joists
4-48.
At which of the following angles
should nails be driven through the
tongue of tongue-and-groove
flooring?
4-49.
How can you prevent splitting the
4-50.
4-51.
4-52.
4-53.
tongue when nailing
tongue-and-groove flooring?
1.
By using cut nails
2.
By predrilling the nail holes
3.
By using chisel-point nails
4.
By waxing the nail shanks
A vapor barrier is installed under
a concrete slab before it is
poured.
Is any further preparation
required for the later installation
of wood flooring.
1.
Yes
2. No
What is the expansion allowance for
hardboard underpayment when laid
next to a vertical surface?
1.
1/8 to 3/8 in.
2.
3/8 to 1/2 in.
3.
1/2 to 5/8 in.
4.
5/8 to 3/4 in.
Nail spacing for 1/2-inch plywood
underpayment should not exceed what
OC (a) edge and (b) field spacing?
1.
(a) 4 in. (b) 8 in.
2.
(a) 5 in. (b) 8 in.
3.
(a) 6 in. (b) 10 in.
4.
(a) 8 in. (b) 10 in.
What is the result of too heavily
applied tile adhesive?
1.
Tile will not adhere
2.
Adhesive will not set
3.
Ties will “telegraph”
4.
Adhesive will bleed between
tile
1.
30° to 35°
2.
35° to 40°
3.
40° to 45°
4.
45° to 50°
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