(C-Phase) Drywall, Paint, and Suspended
Ceilings Seabee BU A School ACTUAL
QUESTIONS AND CORRECT ANSWERS
Type X (Need to know) - CORRECT ANSWERS✅✅What Drywall has special additives
that make it fire resistant?
Sound Deadening Board - CORRECT ANSWERS✅✅What Board is used as a sub layer
with other types of drywall?
Vinyl-Surfaced Board - CORRECT ANSWERS✅✅attached with special drywall finish
nails and edges are left exposed without joint treatment
Plasterboard or Gypsum Lath - CORRECT ANSWERS✅✅Used as plaster base, replacing
wood or metal lath and Is available in 16", 24" widths and usually 48" long. Not compatible
with Portland cement.
Foiled-Backed Board (need to know) - CORRECT ANSWERS✅✅Used as a vapor barrier
on exterior walls; available in various thicknesses.
Backing Board (need to know) - CORRECT ANSWERS✅✅Designed to be used as a base
layer in multi-layer systems. Has a grey paper lining on both sides and is not suited for
finishing or decorating
Water Resistant(WR) or Moisture Resistant(MR) - CORRECT ANSWERS✅✅What board
can be chemically treated to repel moisture. May be referred as green board?
Regular Gypsum Panels - CORRECT ANSWERS✅✅Used for single and multi-layer
application. Applied to interior walls and ceilings. Tapered edge for effective joint
concealment.
4' (need to know) - CORRECT ANSWERS✅✅Drywall sheets are most commonly used in
what widths
, 8' or 12' long (need to know) - CORRECT ANSWERS✅✅What lengths of drywall are
commonly used?
1/4" thickness - CORRECT ANSWERS✅✅What thickness is used as a base layer in multi
layer applications?
3/8" (need to know) - CORRECT ANSWERS✅✅How much thickness is used as a face
layer in repair and remodeling work over existing surfaces?
1/2" and 5/8" - CORRECT ANSWERS✅✅Commonly used thickness of gypsum panels for
single layer wall and ceiling application.
3/4" or 1" thick - CORRECT ANSWERS✅✅Core board and liner boards used for shafts,
firewalls, and stairways are commonly how thick?
Finishing/Drywall Knives - CORRECT ANSWERS✅✅What tool is used to apply and finish
joint compound
12" Finishing Knife (need to know) - CORRECT ANSWERS✅✅What is Used for
feathering out the second layer of joint compound and is usually adequate for the third or
topping layer?
6" Finishing Knife - CORRECT ANSWERS✅✅What is Used to bed tape in the first layer
of joint compound and for filling nail or screw dimples?
16" Finishing Knife - CORRECT ANSWERS✅✅What is Used for applying 3rd coat of
joint compound?
Corner Trowel - CORRECT ANSWERS✅✅Flexes from 103 to 90 degrees and is used to
apply joint compound in interior corners
T-Square - CORRECT ANSWERS✅✅Used to lay out and guide a 90 degree cut on drywall
Ceilings Seabee BU A School ACTUAL
QUESTIONS AND CORRECT ANSWERS
Type X (Need to know) - CORRECT ANSWERS✅✅What Drywall has special additives
that make it fire resistant?
Sound Deadening Board - CORRECT ANSWERS✅✅What Board is used as a sub layer
with other types of drywall?
Vinyl-Surfaced Board - CORRECT ANSWERS✅✅attached with special drywall finish
nails and edges are left exposed without joint treatment
Plasterboard or Gypsum Lath - CORRECT ANSWERS✅✅Used as plaster base, replacing
wood or metal lath and Is available in 16", 24" widths and usually 48" long. Not compatible
with Portland cement.
Foiled-Backed Board (need to know) - CORRECT ANSWERS✅✅Used as a vapor barrier
on exterior walls; available in various thicknesses.
Backing Board (need to know) - CORRECT ANSWERS✅✅Designed to be used as a base
layer in multi-layer systems. Has a grey paper lining on both sides and is not suited for
finishing or decorating
Water Resistant(WR) or Moisture Resistant(MR) - CORRECT ANSWERS✅✅What board
can be chemically treated to repel moisture. May be referred as green board?
Regular Gypsum Panels - CORRECT ANSWERS✅✅Used for single and multi-layer
application. Applied to interior walls and ceilings. Tapered edge for effective joint
concealment.
4' (need to know) - CORRECT ANSWERS✅✅Drywall sheets are most commonly used in
what widths
, 8' or 12' long (need to know) - CORRECT ANSWERS✅✅What lengths of drywall are
commonly used?
1/4" thickness - CORRECT ANSWERS✅✅What thickness is used as a base layer in multi
layer applications?
3/8" (need to know) - CORRECT ANSWERS✅✅How much thickness is used as a face
layer in repair and remodeling work over existing surfaces?
1/2" and 5/8" - CORRECT ANSWERS✅✅Commonly used thickness of gypsum panels for
single layer wall and ceiling application.
3/4" or 1" thick - CORRECT ANSWERS✅✅Core board and liner boards used for shafts,
firewalls, and stairways are commonly how thick?
Finishing/Drywall Knives - CORRECT ANSWERS✅✅What tool is used to apply and finish
joint compound
12" Finishing Knife (need to know) - CORRECT ANSWERS✅✅What is Used for
feathering out the second layer of joint compound and is usually adequate for the third or
topping layer?
6" Finishing Knife - CORRECT ANSWERS✅✅What is Used to bed tape in the first layer
of joint compound and for filling nail or screw dimples?
16" Finishing Knife - CORRECT ANSWERS✅✅What is Used for applying 3rd coat of
joint compound?
Corner Trowel - CORRECT ANSWERS✅✅Flexes from 103 to 90 degrees and is used to
apply joint compound in interior corners
T-Square - CORRECT ANSWERS✅✅Used to lay out and guide a 90 degree cut on drywall
