Bu basic CH13 Flashcards
1
Q
- What are the portions of the roof that project past the side walls of the building? (Page 13-4)
A
eaves
2
Q
- Gypsum board is available in lengths up to how many feet? (Page 13-8)
A
16 feet
3
Q
- What are the most common thicknesses of gypsum board? (Page 13-9)
A
1⁄2 inch and 5/8 inch
4
Q
- What is the most frequently used drywall nail? (Page 13-12)
A
Annular ring nail
5
Q
- What are the two types of drywall scews commonly used? (Page 13-13)
A
Type S and W
6
Q
- Corner bead is nailed or screwed every how many inches through the drywall and into the framing members? (Page 13-14)
A
5 inches
7
Q
- Drywall wall sheets should be run horizontally when ceilings are what height or less? (Page 13-14)
A
8 feet 1 inch
8
Q
- Where drywall is hung vertically, avoid side joints within how many inches of the outside edges of doors or windows? (Page 13-14)
A
6 inches
9
Q
- How many inches OC are screws usually spaced regardless of drywall thickness? (Page 13-17)
A
12
10
Q
- Finishing gypsum board drywall is generally a how many coat application? (Page 13-18)
A
three
11
Q
- The binders most commonly used in plaster are gypsum, lime, and what else? (Page 13-24)
A
portland cement
12
Q
- How many common types of gypsum base coat plasters are there? (Page 13-24)
A
four
13
Q
- Gypsum wood fibered plaster consists of calcined gypsum combined with at least what percent by weight of non-staining wood fibers? (Page 13-25)
A
.75%
14
Q
- How many common types of gypsum finish coat plasters are there? (Page 13-25)
A
five
15
Q
- Normal hydrated lime is converted into lime putty by soaking it for at least how many hours? (Page 13- 26)
A
16
16
Q
- What are the three main aggregates used in plaster? (Page 13-26)
A
Sand, vermiculite, and perlite
17
Q
- What is a micaceous mineral in which each particle is laminated or made up of adjoining layers? (Page 13-27)
A
vermiculite
18
Q
- What is a volcanic glass that, when flash roasted, expands to form irregularly shaped frothy particles containing innumerable minute air cells? (Page 13-27)
A
raw perlite
19
Q
- Wood laths come how many to the bundle are sold by the thousand? (Page 13-28)
A
50 to 100
20
Q
- Board laths are divided into two main groups, gypsum board and what else? (Page 13-28)
A
insulation board
21
Q
- What is the only thing that can be used over gypsum lath? (Page 13-28)
A
gypsum mortar
22
Q
- What is perhaps the most versatile of all plaster bases? (Page 13-28)
A
metal lath
23
Q
- What are formed metal strips used to relieve stresses and strains in large plaster areas or at junctures of dissimilar materials on walls and ceilings? (Page 13-35)
A
control joints
24
Q
- What are strips of wood used as plastering guides or strike off edges and are located around window and door openings and at the base of the walls? (Page 13-36)
A
plastering grounds
25
Q
- What are vermiculite and perlite not used with? (Page 13-36)
A
lime plaster
26
Q
- What are used to apply, spread, and smooth plaster? (Page 13-40)
A
steel trowels
27
Q
- What is glided over the surface of the plaster to fill voids and hollows, to level bumps left by previous operations, and to impart a texture to the surface? (Page 13-41)
A
float
28
Q
- Specifications usually require that plaster be finished true and even, within 1/8 inch tolerance in how many feet without waves, cracks, or imperfections? (Page 13-43)
A
10 feet
29
Q
- Tests have shown that a reduction of thickness to 1⁄4 inch decreases it as much as what percent? (Page 13-43)
A
82%
30
Q
- What type of rough finish is obtained by throwing small pepples or crushed stone against a newly plastered surface? (Page 13-45)
A
peggle
31
Q
- What is the term applied to plaster whenever it is applied to the exterior of a building or structure? (Page 13-45)
A
stucco
32
Q
- On open frame construction, nails are driven one half their length into the wood. Spacing should be how many inches OC from the bottom? (Page 13-47)
A
5-6
33
Q
- Using high early cement reduces the curing time required for the cement to reach its initial strength to
how many days instead of 7? (Page 13-50)
A
3
34
Q
- Tiles with less than how many square inches of face area and about 1⁄4 inch thick are called ceramic mosaics? (Page 13-51)
A
6
35
Q
- Dry-set mortar can be applied in one layer 3/32 inch thick, and it provides bond strength of how many pounds per square inch? (Page 13-52)
A
500
36
Q
- Epoxy mortar can be applied in a bed as thin as what? (Page 13-53)
A
1.8 inch
37
Q
- What type of grout is used in industrial areas requiring high resistance to acids and weak alkalies? (Page 13-53)
A
furan resin
38
Q
- How many primary steps in tile installation are there? (Page 13-55)
A
three
39
Q
- In acoustical celling, the panelse reson on metal members that are called what? (Page 13-62)
A
tees
40
Q
- Hardwood strip flooring is available in widths ranging from 1 1⁄2 to how many inches? (Page 13-66)
A
3 1/4 inches
41
Q
- To minimize floor squeaks the finish floors should be applied only after the joists have dried to what percent of moisture content or less? (Page 13-67)
A
12%
42
Q
- What is the standard thickness for hardboard? (Page 13-70)
A
1/4 inch
43
Q
- Particleboard thicknesses range from 1⁄4 inch to what size? (Page 13-70)
A
3/4 inch
44
Q
- What is the primary purpose of a structural coating? (Page 13-81)
A
protection
45
Q
- What two basic ingredients is paint composed of? (Page 13-83)
A
pigment and a vehicle
46
Q
- What types of paints are not recommended for surfaces submerged in water? (Page 13-84)
A
oil-based
47
Q
- Epoxy pints have a limited working, or pot, life, usually what time frame? (Page 13-84)
A
1 working day
48
Q
- What produce a durable, elastic, and tough surface that normally dries to a high gloss finish that does not easily mar? (Page 13-85)
A
varnishes
49
Q
- Stains are obtainable in four different kinds: oil, water, spirit, and what else? (Page 13-85)
A
chemical
50
Q
- Whenever possible, allow new plaster to age for at least how many days before painting if oil based paint is being applied? (Page 13-87)
A
30
51
Q
- What are used on porous wood, concrete, and masonry to provide a smoother finish coat? (Page 13-90)
A
fillers
52
Q
- What are the only three primary true pigmented colors? (Page 13-93)
A
red, blue, yellow
53
Q
- You should not add more than how many ounces of tint per gallon of paint? (Page 13-94)
A
4
54
Q
- What term refers to a coating pattern that looks like the hide of an alligator? (Page 13-95)
A
alligatoring
55
Q
- What is the failure of a new coat of paint to wet and form a continuous film over the preceding coat? (Page 13-95)
A
crawling
56
Q
- What requirements must electric wiring and equipment installed or used in the paint shop conform to? (Page 13-101)
A
National Electrical Code (NEC)
57
Q
- What are technical bulletins containing information about hazardous material? (Page 13-105)
A
Material Safety Data sheets (MSDSs)
