Chapter 36 Flashcards
The two most common types of subfloor for floor coverings are?
Concrete and wood panel
The vapor retarder below a concrete slab on ground should be of an extremely low permeability. This requirement is more important if the floor covering is polymer based. True or false?
True
The coefficient of friction of a floor surface measures its:
a. water resistance
b. resistance to mold and mildew
c. cleanability
d. slip resistance
e. walking comfort
d. slip resistance
For a ceramic tile floor covering on a wood subfloor:
a. a hardboard underlayment is recommended
b. an unsanded plywood underlayment is recommended
c. a sanded plywood underlayment is recommended
d. a cement or fiber- cement backer board underlayment is recommended
e. b or d
d. a cement or fiber- cement backer board underlayment is recommended
The terms “ Stone panel and Stone tile” are used interchangeably in building industry. True or false?
False
A thick-bed mortar consists of:
a. Portland cement, sand, and water
b. Portland cement, lime, sand, and water
c. Lime, sand, and water
d. Lime, limestone powder, sand, and water
e. none of the above
a.
For setting the ceramic tiles on the subfloor, the most commonly used mortar is thick-bed mortar. True or false?
False
A thick-bed mortar is proprietary to the manufacturer, while a thin-bed mortar is generic. True or false?
False
Stone panel flooring is laid on the subfloor using:
a. the epoxy mortar
b. the polymer-modified Portland cement mortar
c. the thick bed mortar
d. the thin bed mortar
e. any one of the above depending on the type of stone
c. thick bed mortar
A notched trowel:
a. is used in laying grout
b. is used in laying thick-bed mortar
c. is used in laying thin bed mortar
d. all of the above
e. none of the above
c. is used in laying thin bed mortar
A rubber float:
a. is used in laying grout
b. is used in laying thick bed mortar
c. is used in laying thin bed mortar
d. all of the above
e. none of the above
a. is used in laying grout
To ensure that the width of joints between ceramic or natural stone tiles are uniform, the installer uses:
a. a laser beam
b. steel ruler
c. chalk lines
d. 2 x 4 wood straight edge
e. plastic spacers
e. plastic spacers
Terrazzo floor covering is like concrete in that it:
a. is a mix of binding agent and aggregate
b. is liquid when placed and cures hard
c. is saw-cut to control cracking
d. all of the above
e. a and b
e. a and b
A cementitious terrazzo floor covering is:
a. approximately 3/4 inch thick
b. approximately 1/2 inches thick
c. approximately 1/4 inches thick
d. vapor permeable
e. b and d
e. b and d
A cementitious terrazzo floor covering:
a. requires divider strips at spacing not exceeding 3 ft.
b. requires divider strips at spacing not exceeding 4 ft
c. requires divider strips at spacing not exceeding 5ft
d. requires divider strips at a spacing not exceeding 7 ft
e. does not require any divider strips except at floor transitions and change of mix color and pattern
c. required divider strips at spacing not exceeding 5ft