L11 M2 Flashcards
Suspended ceilings: Panel sizes typ. ____ OR ____ cm
60 x 60, 60 x 120
quarry tiles tend to range from __cm to __cm square tiles
10 to 30
ceramic and porcelain tiles typically range from ___ to ___ cm in size
1.5 to 30 (large ones can be over 100cm)
Resilient flooring:
Vinyl composition tiles (VCT):
Typically __ cm square, __ mm thick
30, 3
What are the two types of carpet?
cut pile (primarily residential) loop pile (commercial)
Carpet tiles are typically sized __ and __ cm square
90 and 45
Common wall bases: Wood baseboards (\_\_\_\_)
skirting
Lamps: Incandescent and halogen cons include ~2% light, 98% waste heat
true/false
true
Lamps: Incandescent and halogen have a high initial cost.
true/false
false
Lamps: how long are incandescent and halogen lights lives?
750 - 2,500 hours
1 lux is produced by 1 lumen falling on 1 square metre, true/false
true
The Inverse square law is the principle that light radiates outward from source and loses concentration exponentially w/ distance, true/false
true
Office spaces typ. aim at lighting levels of ~___ lux
500
Suspended ceilings represent the lower extent of the “___________”, or space between the ceiling and the underside of the deck above.
plenum
Which type of ceiling is most common in commercial interiors?
suspended
The correct order of the layers that make up a suspended plaster ceiling are hanger wires, runner channels, furring channels, metal lath and three-coat plaster. true/false
true
A key difference between quarry tile and ceramic and porcelain tiles is that the latter type are
glazed
The acronym for the resilient flooring type that is installed in square pieces without grout joints is “___”.
VCT
The type of commercial lamp that tends to have the lowest efficacy is:
incandescent
