What penetration are face layers sheetrock fastener, GWB-54, required by code to provide - Correct Answer 3/4" penetration
What causes cracking or wrinkling at taped edges of drywall - Correct Answer Very rapid drying
Where should the first nails be spaced in the double nailing method for a...
Drywall & Plaster Questions And Quality
Solutions
What penetration are face layers sheetrock fastener, GWB-54, required by code to
provide - Correct Answer 3/4" penetration
What causes cracking or wrinkling at taped edges of drywall - Correct Answer Very
rapid drying
Where should the first nails be spaced in the double nailing method for attaching
sheetrock board to wood framing. - Correct Answer 12" on center along the supports in
the field in sheetrock
What type of lath is used as the plaster base, when plastering ceilings in garages -
Correct Answer Metal lathe
three coat work requires...
finish coat, brown coat, scratch coat, all the above - Correct Answer all the above
for what period of time must the scratch coat be cured - Correct Answer not less than
48 hours
how is chicken wire ordered - Correct Answer by the roll
the lath used for plaster finish is...
metal, gypsum, insulation fiberboard, all the above - Correct Answer all the above
which of the following has the greatest insulating value?
fibers, gypsum lath, insulating fiberboard - Correct Answer Insulating fiberboard
stucco adheres best to which of the following?
mineral laths, wire laths, plaster boards, gypsum laths - Correct Answer Wire laths
Over which types of bases may Portland cement plaster be applied? A) Wire B)
Masonry C) Gypsum D) both Wire and Masonry - Correct Answer both Wire and
Masonry - not gypsum
Gypsum is what type of Lath - Correct Answer Mineral lath
Gypsum mortar sets - Correct Answer Faster than lime mortar
Metal lath is usually applied with the long dimension of the sheet in a/an - Correct
Answer horizontal direction
What is the principle binder in gypsum products - Correct Answer Lime
, Metal lath is ordered by the bundle. How many pieces are in a bundle - Correct Answer
12 pieces in a bundle
What is an advantage of plaster acoustical ceilings over other acoustical ceilings -
Correct Answer Its fire resistant
What are the best nails for drywall - Correct Answer Annular ring
How many nails should be ordered if you need 2,500 for a job, plus a 10% allowance, if
the nails come 150 to the pound? 21, 19, 17, 15 - Correct Answer 19 boxes,
2500 x 10% = 250
2500 + 250 = 2750
per lbs = 18.3 rounded to 19
The nails should be placed no more than how far on center, when installing drywall on a
ceiling - Correct Answer 7" on center
The nails should be placed no more than how far on center, when installing drywall on
sidewalls - Correct Answer 8" on center
what does the term "drywall" most usually refer to? - Correct Answer Gypsum
Wallboard
Ridging refers to - Correct Answer Conspicuous wrinkling of joint tape at treated edges
Usually drywall should first be installed - Correct Answer On the ceiling
What is the recommended head diameter for drywall nails - Correct Answer 19/64"
Which of the following statements is false.
1) the edge of a sheet of drywall that is slightly depressed is called the taped edge
2) In perpendicular installation, the short side of the drywall is attached perpendicular to
the studs
3) All drywall joint material is casein based
4) Ridging and cracking are prevented by back blocking - Correct Answer In
perpendicular installation, the short side of the drywall is attached perpendicular to the
studs
What is the best hammer for drywall - Correct Answer Convex
How do you get a clean cut on drywall - Correct Answer first score the front
What is the most important advantage of installing drywall with screws - Correct Answer
It holds more securely
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