3-36.
What is the main purpose of using
felt paper on a built-up roof?
1.
To hold the bitumens together
2.
To insulate
3.
To soak up excess asphalt
4.
To act as a vapor barrier
3-37.
Asphalt should be in what
temperature range when applied?
1.
275°F to 375°F
2.
375°F to 425°F
3.
450°F to 500°F
4.
500°F to 550°F
3-38.
The aggregate on a built-up roof
serves which of the following
functions?
1.
Protect the bitumen from
sunlight only
2.
Increase wind and fire
resistance only
3.
Permit use of a thick surface
coating of bitumen only
4.
Each of the above
3-39.
The first two layers of a five-ply
roof are referred to as what type
of nailer?
1.
Dry
2.
Base
3.
Bottom
4.
Back
3-40.
A kettle operator should perform
what task first?
1.
Fill the fuel tank
2.
Fill the kettle with pieces of
asphalt
3.
Inspect the kettle, making sure
it is dry inside
4.
Light-off the kettle
3-41.
In a kettle, how should you’
maintain hot binder at an even
temperature?
1.
Adjust the burner
2.
Add material at the same rate
as the melted material is drawn
off
3.
Adjust the fuel pressure
4.
Remove material faster than you
add it
3-42.
If a kettle catches fire, which of
the following is an action you
should take first?
1.
Remove the burner
2.
Shut off the fuel
3.
Spray water on the kettle
4.
Close the lid
3-43.
The distance maintained between the
mopper and the felt layer should
not exceed
1.
9 ft
2.
7 ft
3.
3 ft
4.
5 ft
3-44.
Which of the following properties
is/are essential for wood siding?
1.
Weathers easily
2.
Paints easily only
3.
Works easily only
4.
Paints and works easily
3-45.
Which of the following horizontal
sidings can be obtained with either
shiplap or tongue-and-groove edges?
1.
Drop
2.
Bevel
3.
Dolly Varden
3-46.
In the installation of vertical
board siding, board widths range
from 2 to 4 inches.
1.
True
2.
False
3-47.
When installing 4- by 8-foot
vertical plywood siding, which of
the following materials should you
apply to the joints to ensure
maximum watertightness?
1.
Battens only
2.
Caulking only
3.
Water-repellent preservative
and caulking only
4.
Any of the above
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