6-33.
What size stock is used for
transverse diagonal bracing?
1.
2 x 2
2.
2 x 4
3.
2 x 6
4.
2 x 8
6-34.
When placing timber girders, the OC
spacing is what distance?
1.
3 ft 3 in.
2.
3 ft 3 1/4 in.
3.
3 ft 3 1/2 in.
4.
3 ft 3 5/8 in.
6-35.
How many layers of planking make up
a timber deck?
1.
One
2.
Two
3.
Three
4.
Four
6-36.
The timber decking consists of
3-inch planks.
1.
True
2.
False
6-37.
At an abutment, which of the
following items prevents the
approach of road from washing out
or eroding?
1.
End cap
2.
End wall
3.
End dam
4.
End curb
6-38.
Which of the following is a
load-bearing member made of timber,
steel, concrete, or a combination
of these materials?
1.
Coffer damn
2.
Pile
3.
Trestle
4.
Pile bent
6-39.
What is the tip diameter of a pile
shorter than 40 feet?
6-40.
The butt diameter of piles longer
then 40 feet can be greater than
the distance between the pile
leads.
1.
True
2.
False
6-41.
During a pile driving operation,
which of the following actions is
necessary to protect the pile from
damage?
1.
Cut the pile perpendicular to
its axis
2.
Use steel shoes to protect the
pile
3.
Sharpen the tip of the pile
4.
Cut the butt of the pile square
and chamfer it
6-42.
Which of the following piles is
required when piles of 80 feet or
longer are required?
1.
Timber
2.
Steel
3.
Concrete
4.
Combination
6-43.
Which of the following piles should
be used to form a continuous wall
to resist horizontal pressure
resulting from earth or water
loads?
1.
Sheet pile
2.
Precast pile
3.
Cast-in-place pile
4.
Open-end pipe pile
6-44.
Which of the following is
constructed below water-retaining
structures to retard the flow of
water through the foundation?
1.
Cofferdamns
2.
Bulkheads
3.
Cutoff walls
4.
Trench sheathing
1.
8 to 11 in.
2.
9 to 12 in.
3.
10 to 13 in.
4.
11 to 14 in.
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