c.
directly on the joist carrying the decking
12. What in the most economical material to use
d.
on 1 x 16 inch timbers set on the piles
in the construction of wharves and quays?
8. Which of the following piles supports the
a
timber
pier framework and decking?
b.
concrete
c.
steel
a.
bearing
c. fender
d.
steel and concrete
b.
mooring
d. dolphin
13. Which of these waterfront structures would
9. When you construct a wharf, which of the
you erect perpendicular to the shore line?
following would enable you to decide on the length
of the piles?
a.
wharf
c. bulkhead
b.
pier
d. retaining wall
a.
depth of the water and condition of the bottom
b.
expected load and type of equipment
14. The columns used for a loading dock
c.
type of framework and decking
foundation are spaced according to the weight they
d.
expected load plus depth of water in feet
are to carry. How many feet apart are they usually
spaced?
10. You have received a loading dock plan that
calls for 3 x 6 inch joist spaced 16 inches on center.
a.
6 to 15
c. 5 to 20
You doubt that the joists have enough supporting
b.
6 to 10
d. 5 to 15
strength. What do you do?
15. What two waterfront structures
are
a.
reduce joist spacing to 12 inches
constructed parallel to the shore line?
b.
use heavier joists and reduce spacing
c.
use heavier joists with the stated spacing
a.
wharves and piers
d.
reduce joist spacing to 14 inches
b.
fenders and dolphins
c.
bits and dolphins
11. You have followed all directions and
d.
wharves and quays
instructions pertaining to termite control, but termite
colonies still accumulate. What do you do now?
16. You plan to construct a pier from material
that will be economical and easy to work. Which of
a.
poison the soil
these do you select?
b.
treat the wood
c.
consult an entomologist
a.
concrete
d.
construct termite shields
b.
steel
c.
reinforced concrete
d.
timber
17. Which of these do you use to protect
waterfront structures from moving vessels?
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