1
C-39 ROOFING TRADE PRACTICE TEST 1 QUESTIONS AND
ANSWERS
Reinforced concrete can be Some moisture will remain in concrete decks even after the
used as a structural deck. Which surface is dry
of the following is a correct
statement?
, 2
Roofing insulation and A vapor retarder or
membranes must be protected
from latent moisture in concrete A venting sheet
decks. In northern climates, this
is usually accomplished with:
Steel decks should be at least 22g
_ ___ or heavier.
Insulation applied to steel roof In two separate layers where insulation thickness permits
decks before the roof
membrane is installed should be
applied:
The top flanges of a steel roof Perpendicular to the roof slope
deck should be installed:
The maximum deflection 1/4" per 100 feet
allowed for a steel deck is:
If the steel decks must be spot- 1/2 inches ... 12 inches
welded to structural steel,
puddle welds ____ or larger in
diameter are recommended.
They should be made on
washers and spaced at least
_ ___ on center.
If thermosetting insulation is 18 to 22 pounds per cubic foot
used over structural decks, the
density should be:
The correct density for Compacting
thermosetting insulation is
accomplished by:
Thermosetting insulation is 6 inches
compacted in two layers if the
total thickness is greater than:
Thermosetting insulative fills Install base-ply vapor barrier and
must be protected from latent
moisture in roof decks. Which of Install wood nailers at all perimeters and
the following procedures is
recommended? Install wood nailers at all roof projections
What type of roof is Aggregate
recommended over
thermosetting insulative fills
A span rating of _____ means 32/16
that a plywood panel may be
used for roof decking over
supports spaced 32 inches o.c.
or for sub flooring over
supports spaced 16 inches o.c.
C-39 ROOFING TRADE PRACTICE TEST 1 QUESTIONS AND
ANSWERS
Reinforced concrete can be Some moisture will remain in concrete decks even after the
used as a structural deck. Which surface is dry
of the following is a correct
statement?
, 2
Roofing insulation and A vapor retarder or
membranes must be protected
from latent moisture in concrete A venting sheet
decks. In northern climates, this
is usually accomplished with:
Steel decks should be at least 22g
_ ___ or heavier.
Insulation applied to steel roof In two separate layers where insulation thickness permits
decks before the roof
membrane is installed should be
applied:
The top flanges of a steel roof Perpendicular to the roof slope
deck should be installed:
The maximum deflection 1/4" per 100 feet
allowed for a steel deck is:
If the steel decks must be spot- 1/2 inches ... 12 inches
welded to structural steel,
puddle welds ____ or larger in
diameter are recommended.
They should be made on
washers and spaced at least
_ ___ on center.
If thermosetting insulation is 18 to 22 pounds per cubic foot
used over structural decks, the
density should be:
The correct density for Compacting
thermosetting insulation is
accomplished by:
Thermosetting insulation is 6 inches
compacted in two layers if the
total thickness is greater than:
Thermosetting insulative fills Install base-ply vapor barrier and
must be protected from latent
moisture in roof decks. Which of Install wood nailers at all perimeters and
the following procedures is
recommended? Install wood nailers at all roof projections
What type of roof is Aggregate
recommended over
thermosetting insulative fills
A span rating of _____ means 32/16
that a plywood panel may be
used for roof decking over
supports spaced 32 inches o.c.
or for sub flooring over
supports spaced 16 inches o.c.
