Gypsum Handbook Chapter 5 Questions With
Complete Solutions
_____ ______ _____ should not be applied over:
- moist surfaces, or areas subject to potential
moisture buildup
- ceiling areas below grade
- surfaces that project outside the building or on
other areas that might be subject to moisture,
freezing, efflorescence, pitting or popping,
movement, or other abnormal conditions. Correct
Answers Cover coat compound
________ is as important as the amount of sealant
used in order to be effective. Correct Answers
Placement
After applying the finish coat, go over the whole
job to smooth and touch up with ______ ____ all
scratches, craters, nicks, and other imperfections
in the dried finish coat. Correct Answers Joint
compound
Apply No. 800 of 900 corner bead with nails
through the board into the wood framing, or to the
board alone in wood or steel-framed assemblies
with _______ galvanized steel staples spaced ____
OC through both flanges. Correct Answers 9/16",
12"
,Applying a thin coat of joint compound reduces
_____ _____ and makes the tape easier to ____ with
following coats. Correct Answers Edge wrinkling,
conceal
Applying the finish coat:
apply a thin finish (third) coat of ready-mixed,
topping or all-purpose _______ over _____, beads,
fasteners, and trim.
Feather edges of third coats at least _____ inches
wider than second coats. Correct Answers
Compound, joints, 2
At control joint locations, interrupt wood floor and
ceiling plates with a _____ _____ gap wherever there
is a control joint in the structure Correct Answers
1/2 inch
At control joint locations, leave a _____ _____
continuous opening between gypsum boards for
insertion of a surface-mounted joint. Correct
Answers 1/2 inch
At control joint locations, provide ______ supports
for each control joint ______. Correct Answers
Separate, flange
At control joint locations, provide an adequate seal
or _______-______ ______ behind control joints where
, sound and/or fire ratings are prime consideration.
Correct Answers Fire-safing insulation
Before attachment of end joints, bevel panel ends
approx _____ inches at a 45 degree angle using a
sharp utility knife.
This keeps the paper ends apart and reduces _____
problems caused by the raw paper edge.
Also, peel back and remove any _____ ______ from
the end. Correct Answers 1/8, expansion, loose
paper
Contract documents traditionally use nonspecific
terms such as _____ _____ or ______ ____ to describe
how finished gypsum board walls and ceilings
should look. This practice has often led to
confusion about the degree or level of finishing
required for a particular job. Correct Answers
Industry standards, Workmanlike finish
Control joints should be used in the face of gypsum
construction partitions and ceilings when the size
of the surface exceeds the following control-joint
spacings:
- ______, 30' max in either direction
- Interior ceilings w/perimeter relief, 50' max in
either direction
Complete Solutions
_____ ______ _____ should not be applied over:
- moist surfaces, or areas subject to potential
moisture buildup
- ceiling areas below grade
- surfaces that project outside the building or on
other areas that might be subject to moisture,
freezing, efflorescence, pitting or popping,
movement, or other abnormal conditions. Correct
Answers Cover coat compound
________ is as important as the amount of sealant
used in order to be effective. Correct Answers
Placement
After applying the finish coat, go over the whole
job to smooth and touch up with ______ ____ all
scratches, craters, nicks, and other imperfections
in the dried finish coat. Correct Answers Joint
compound
Apply No. 800 of 900 corner bead with nails
through the board into the wood framing, or to the
board alone in wood or steel-framed assemblies
with _______ galvanized steel staples spaced ____
OC through both flanges. Correct Answers 9/16",
12"
,Applying a thin coat of joint compound reduces
_____ _____ and makes the tape easier to ____ with
following coats. Correct Answers Edge wrinkling,
conceal
Applying the finish coat:
apply a thin finish (third) coat of ready-mixed,
topping or all-purpose _______ over _____, beads,
fasteners, and trim.
Feather edges of third coats at least _____ inches
wider than second coats. Correct Answers
Compound, joints, 2
At control joint locations, interrupt wood floor and
ceiling plates with a _____ _____ gap wherever there
is a control joint in the structure Correct Answers
1/2 inch
At control joint locations, leave a _____ _____
continuous opening between gypsum boards for
insertion of a surface-mounted joint. Correct
Answers 1/2 inch
At control joint locations, provide ______ supports
for each control joint ______. Correct Answers
Separate, flange
At control joint locations, provide an adequate seal
or _______-______ ______ behind control joints where
, sound and/or fire ratings are prime consideration.
Correct Answers Fire-safing insulation
Before attachment of end joints, bevel panel ends
approx _____ inches at a 45 degree angle using a
sharp utility knife.
This keeps the paper ends apart and reduces _____
problems caused by the raw paper edge.
Also, peel back and remove any _____ ______ from
the end. Correct Answers 1/8, expansion, loose
paper
Contract documents traditionally use nonspecific
terms such as _____ _____ or ______ ____ to describe
how finished gypsum board walls and ceilings
should look. This practice has often led to
confusion about the degree or level of finishing
required for a particular job. Correct Answers
Industry standards, Workmanlike finish
Control joints should be used in the face of gypsum
construction partitions and ceilings when the size
of the surface exceeds the following control-joint
spacings:
- ______, 30' max in either direction
- Interior ceilings w/perimeter relief, 50' max in
either direction
