問題一覧
1
The most important factor is _____, when installing a heavy metal door.
the size of the rough opening
2
What is the recommended method of attachment to metal studs (2 layers)?
1 5/8-inch screw
3
What would cause dark lines in the paper, after a ceiling has been textured?
asphalt adhesive coming through mud
4
You are told to first cut a sheet of gypsum board to size for a curved wall and then to score the back of the sheet at 1-inch intervals.
this is the correct procedure
5
Use ______ when welding exterior studs.
metallic
6
Veneer paneling is found in the
space between office partitions
7
_________ welded is found where workers are making up a scaffold with tubular pipe:
oxyacetylene
8
The correct stud to use for one layer of vinyl finish board is ___, so the electrician can install conduit.
CH
9
_____ is used to fasten face sheet to drywall
screws
10
If the general application for screw fasteners on a suspended ceiling is 12 inches o.c., what application would be necessary for the ceiling to be fire-rated?
8 inches o.c.
11
What causes a texture mix to be "lumpy?"
adding too much water
12
How do you prevent cracking at corners, when installing drywall?
nail only the bottom layer and float the top
13
If a drywall mechanic sprayed a ceiling before the joint has dried, the results would be:
ridging
14
Which type of studless partition would weigh the least
60" o.c. stud partition
15
What could be the cause, if texturing is not sticking to the ceiling?
too much liquid
16
What is the fire rating on a 2 inch x 4 inch wall with 5/8 Type X on each side
1 hour
17
The tool which is used for texturing over drywall is:
16-inches texture blade or spray gun
18
What would you use to repair a cracked or damaged texture coat
a texture patcher
19
To seal water board you would:
leave 1/4-inch space above tub for caulking
20
The reason may be ______, if a texture spray fails to stick to the ceiling.
too much water
21
____________ will increase soundproofing:
stop up leaks in floors and ceilings
22
What is not correct about steel studs used for partitions?
they come in 24 feet lengths
23
What is "spaling"?
cracking, breaking, or splintering of material
24
What is the best method of repairing tape that has blistered?
open up blistered area by splitting tape. Fill cut with joint compound and press tabe in place with knife blade. when dry smooth to level finish
25
When applying texture to a wall where the roughness of the surface is inconsistent, how would you first prepare the wall?
sand with 80- grit sand paper
26
A scaffolding must be ___ high before you need a safety rail
7 1/2 feet
27
Cracking on gypsum would most likely occur because of the:
alignment of joints
28
The best interlocking partition is:
tongue and grooved
29
The least affected by the humidity factor at a project is:
drywall
30
Where are rips used?
to finish a ceiling
31
What is the disadvantage of putting two light boxes on the same stud when installing moveable partitions?
reduced sound control
32
______ is NOT needed in a heavy metal door and frame.
floor jamb
33
_______ is NOT true, about applying water-resistant panels in a bathroom:
tape panels in areas to be tiled
34
What does O.C. mean?
on center
35
The spacing for carrying channel on a suspended ceiling:
depends on size of the ceiling furring channels
36
The best method of installing drywall parallel to the studs is:
5/8-inch drywall fastened at 16 inches o.c.
37
Gypsum board is not always the same texture and porosity. To compensate for this you should:
apply a cost of paint as a sealer
38
Steel studs are treated because:
prevents rust
39
Which type of studless partiton provides the highest fire rating?
5/8 inch drywall
40
Which type of gypsum wallboard can you apply-water-bsde texture?
5/8-inch regular gypsum wallboard
41
What are Z-bar applications used for?
masonry
42
When attaching ceramic tile, you do not need to tape the walls.
True
43
A drywall mechanic installed 5/8-inch drywall in a ceiling using Type W screws spaced 12 inches on center on the edges, ends, and in the field, with screw heads slightly below the surface.
This is the correct procedure
44
For an exterior soffit you would use:
fiber board
45
When surfacing walls in a repair project, _______ NOT correct:
no need to fill small holes that will be covered by the new drywall
46
What technique would you use, when applying gypsum board to a curved wall?
decrease distance between studs
47
Which is NOT correct, when applying tongue-and-groove gypsum sheathing?
when sheathing is installed, the groove should be installed facing up
48
What kind of furring strips should be used in an masonry block wall?
Z-Bar
49
Which one of the following statements about drywall mud is NOT correct?
may be delivered two months early, ages well
50
How many coats of joint compound and layers of tape do you need for a factory edge?
3 coats compound, 1 layer of tape
51
What is NOT the right thing to do, if you are going to nail 3/8-inch drywall over existing drywall?
omit filling small homes because they will be covered with the new face
52
What type of stud would you use if a customer wanted a partition wall set up in a hurry?
H
53
The normal height for office partitions is
7 feet
54
Nails are spaced ______, in double nailing
2 to 2 1/2 inches apart
55
The best means of securing rigid plastic foam, plus 5/8-inch face-ply to a concrete wall is:
Z-Bar
56
When installing a rail-high partition:
you may use a steel runner for the base and top rail
57
What should boards supporting drywall stacks be
4 inches or more stacked vertical
58
Gypsum board may be mounted with adhesive to a concrete wall with cut nails. When this is done, the nails are placed:
at the bottom and top of the board
59
You should ________, when storing drywall to be used on a job.
stack flat on clean floors in the center of the largest rooms
60
The best choice of hardware for a 5/8 inch drywall application to affix layer of drywall over a foam-insulated wall:
resilient channel
61
When applying drywall to a suspended ceiling system, screw fasteners are spaced a maximum of ___ inches o.c. in the field of the board, and ___ o.c. along abutting ends and edges of the board.
12 inches and 12 inches
62
If 12 feet long gypsum boards are stored on risers, they should be at least 4 inches wide and placed directly under each other vertically within ____ inches of board ends and no greater than ____ inches apart
2"/23"
63
Damaging vinyl covering in a wall is caused by
laminating adhesive
64
If money is no object, what would you use in a business office to achieve wood finished on walls?
solid wood paneling
65
______ is when the edge of gypsum board runs vertically with the studs:
parallel perpendicular
66
The term "hide" pertains to:
textured walls
67
A double brush is used for texturing because:
faster and covers more area
68
What should you do when you paint over a texture coat
use a king-nap roller
69
Where would you find wood-grain gypsum panels?
kitchens
70
How do you match up new partition walls with existing partitions on a remodeling job?
stack up on walls and match first
71
The advantage of installing two layers of Type X drywall is:
fire resistant and sound insulation
72
How far apart should steel studs be placed, when are used as hangers in a suspended ceiling?
4 feet
73
For heavy metal doors double metal studs should be installed:
on each side of the jamb
74
The limiting height in solid partitions is:
14 feet
75
Use _______ for the best method of fire protection.
3 layers of 5/8-inch attached to metal studs
76
What system would give the greatest fire protection to a column?
3 layers- 5/8 inch Type X screwed to 1 5/8-inch metal studs
77
When installing pre-decorated gypsum board, and you find there are differences in color, pattern or finish, where should you place the different sheets?
at the corner
78
What would be least likely to happen, if gypsum board is stocked vertically?
ridging
79
A sealer _____ to a wall
allows paint to go on evenly
80
If a drywall mechanic is crimping corner bead, you would expect that:
this is a normal installation
81
A water-level hose is filled by:
should be siphon filled
82
Of the following, which system of demountable partitions could be erected in the shortest possible time?
H-Stud
83
How would you attach gypsum board to a block wall?
cut joints blush and fill large pockets with mortar
84
You are working on a 6 ft. X 2 1/2 ft., 5 ft. High., metal rolling scaffold. It's rollers rest on a surface that is 2 degrees from level. When it comes time to move the scaffold to a different area, you instruct a worker to move the scaffold while you are still on it. You have proceeded:
correctly
85
Drywall should be nailed off at
the edge
86
The surface around screws that bulge onab dry wall is caused by
screw is too deep, breaking face paper
87
A "dimple" is
a slight depression in the gypsum board around a properly driven nail or screw
88
The best drywall to which to apply water-base texture is:
1/2-inch or 5/8-inch drywall
89
What system of demonstrable partitions is designed to best allow erection of only one side of the partition so other trades can work?
T-Stud