NCIDQ IDFX EXAM LATEST UPDATE w w w w w
Advantages of Gypsum Drywall - ANSWER w w w w
low install cost, quick & easy insta w w w w w w
llation, fire resistance, sound control capability, easy availability, ve
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rsatility, ease of finishing & decorating, ease of installation of doors/
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other openings w
Gypsum Drywall Edges - ANSWER w w w
Tapered: Most common; tapered on fac w w w w w
e side along the long dimension of the panel & square edges at the
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end; allows for application of reinforcing tape & joint compound wi
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thout causing bulges at joints
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Square: used where appearance is NOT a factor, for basic layers of
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2-layer applications & for veneer plaster work
w w w w w w w
Levels of Gypsum Drywall - ANSWER
w w w w
1: plenums above ceilings & other area w w w w w w
s not normally open to view (tape embedded in joint compound w/ s
w w w w w w w w w w w w
urface free of excess compound
w w w w
2. water resistant backing board (all joints & angles have tape
w w w w w w w w w
embedded in joint & one separate coat of compound
w w w w w w w w w
3. heavy or medium textured finishes/heavy-
w w w w
grade wallcovering ( 2 coats of compound)
w w w w w w
4. Light textured or wallcoverings & where economy is concerned (3
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layers)
5. all paints, severe lighting conditions (4 layers)
w w w w w w
Studs are spaced how far apart? - ANSWER
w w w w w w
residential: 16" O.C. commerci w w w
al: 24" O.C.
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Slip Joint - ANSWER
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prevent wall from being damaged if the structural f w w w w w w w w
,loor deflects
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Plaster Construction -
w w ANSWER 1. Scratch Coat
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2. Brown Coat (level surface)
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,3. Finish Coat (Leveling & desired texture)
w w w w w
*Add Trim w
Masonry Block Dimensions - ANSWER 8"x8"x16" (-
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3/8" for mortar joints)
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Demountable Partitions - ANSWER w w
Consists of a system of individual compo w w w w w w
nents that can be quickly assembled, disassembled & reused with n
w w w w w w w w w w
early total salvageability
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consists of floor runners, ceiling runners, stud sections with clips to
w w w w w w w w w w w
hold panels, & prefinished gyp. wallboard panels
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uses aluminum for framing
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Definition: Hinges - ANSWER w w
Consist of 2 leaves with an odd number of kn w w w w w w w w w
uckles on one leaf and an even number of knuckles on the other
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knuckles are attached with a pin knuckl
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e + pin = barrel (finished with tip)
w w w w w w w
Types of Hinge Tips - ANSWER -flat button (most common; typical)
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-hospital
-oval head (typical)
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-steeple
-flush
Butt Hinge - ANSWER
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MOST COMMON; has both leaves fully mortised into t w w w w w w w w
he frame and the edge of the door so the hinge is flush with the surfa
w w w w w w w w w w w w w w w
ce of the frame and door
w w w w w
raised barrel hinge - ANSWER w w w
used when there is not room for the barrel to e w w w w w w w w w w
xtend past the door trim; OFFSET to allow one leaf to be mortised in
w w w w w w w w w w w w w
to the frame (kind of has an L shape on each side)
w w w w w w w w w w w
, swing clear hinges - ANSWER has a special shape that allows the
w w w w w w w w w
Advantages of Gypsum Drywall - ANSWER w w w w
low install cost, quick & easy insta w w w w w w
llation, fire resistance, sound control capability, easy availability, ve
w w w w w w w w
rsatility, ease of finishing & decorating, ease of installation of doors/
w w w w w w w w w w
other openings w
Gypsum Drywall Edges - ANSWER w w w
Tapered: Most common; tapered on fac w w w w w
e side along the long dimension of the panel & square edges at the
w w w w w w w w w w w w w w
end; allows for application of reinforcing tape & joint compound wi
w w w w w w w w w w
thout causing bulges at joints
w w w w
Square: used where appearance is NOT a factor, for basic layers of
w w w w w w w w w w w
2-layer applications & for veneer plaster work
w w w w w w w
Levels of Gypsum Drywall - ANSWER
w w w w
1: plenums above ceilings & other area w w w w w w
s not normally open to view (tape embedded in joint compound w/ s
w w w w w w w w w w w w
urface free of excess compound
w w w w
2. water resistant backing board (all joints & angles have tape
w w w w w w w w w
embedded in joint & one separate coat of compound
w w w w w w w w w
3. heavy or medium textured finishes/heavy-
w w w w
grade wallcovering ( 2 coats of compound)
w w w w w w
4. Light textured or wallcoverings & where economy is concerned (3
w w w w w w w w w w
layers)
5. all paints, severe lighting conditions (4 layers)
w w w w w w
Studs are spaced how far apart? - ANSWER
w w w w w w
residential: 16" O.C. commerci w w w
al: 24" O.C.
w w
Slip Joint - ANSWER
w w
prevent wall from being damaged if the structural f w w w w w w w w
,loor deflects
w
Plaster Construction -
w w ANSWER 1. Scratch Coat
w w
2. Brown Coat (level surface)
w w w
,3. Finish Coat (Leveling & desired texture)
w w w w w
*Add Trim w
Masonry Block Dimensions - ANSWER 8"x8"x16" (-
w w w w
3/8" for mortar joints)
w w w
Demountable Partitions - ANSWER w w
Consists of a system of individual compo w w w w w w
nents that can be quickly assembled, disassembled & reused with n
w w w w w w w w w w
early total salvageability
w w
consists of floor runners, ceiling runners, stud sections with clips to
w w w w w w w w w w w
hold panels, & prefinished gyp. wallboard panels
w w w w w w
uses aluminum for framing
w w w
Definition: Hinges - ANSWER w w
Consist of 2 leaves with an odd number of kn w w w w w w w w w
uckles on one leaf and an even number of knuckles on the other
w w w w w w w w w w w w
knuckles are attached with a pin knuckl
w w w w w w
e + pin = barrel (finished with tip)
w w w w w w w
Types of Hinge Tips - ANSWER -flat button (most common; typical)
w w w w w w w w
-hospital
-oval head (typical)
w w
-steeple
-flush
Butt Hinge - ANSWER
w w
MOST COMMON; has both leaves fully mortised into t w w w w w w w w
he frame and the edge of the door so the hinge is flush with the surfa
w w w w w w w w w w w w w w w
ce of the frame and door
w w w w w
raised barrel hinge - ANSWER w w w
used when there is not room for the barrel to e w w w w w w w w w w
xtend past the door trim; OFFSET to allow one leaf to be mortised in
w w w w w w w w w w w w w
to the frame (kind of has an L shape on each side)
w w w w w w w w w w w
, swing clear hinges - ANSWER has a special shape that allows the
w w w w w w w w w
