12.
You are erecting a prefab building in the tropics. What kind of floor do you specify?
A.
earth
B.
concrete
C.
wood
D.
metal
13.
Why would you use girts in erecting prefab buildings?
A.
provide fastening surface for wall exterior coverings
B.
to hold the corners square
C.
to keep girders in place
D.
to strengthen floor joists
14.
Which of the following states the parts of the floor frame in a quonset hut?
A.
metal studs, purlins, headers
B.
sag rods, struts, beams
C.
girders of joist sills, and joists
D.
brace rods, frame, splice plates
15.
Which of the following metal contacts would produce the most corrosion in the presence of an electrolyte?
A.
aluminum with lead
B.
aluminum with zinc
C.
copper and tin
D.
zinc with iron
16.
How many bays can be placed end-to-end to form a building?
A.
10
B.
20
C.
35
D.
any number
17.
What is the purpose of retaining walls?
A.
protect shore from soil erosion
B.
provide berths and slips
C.
facilitate overhaul of seagoing vessels
D.
reduce cargo-unloading time
18.
Wharves and piers can be constructed from timber, concrete, or steel. Why would you choose timber?
A.
more economical
B.
heavy
C.
immune to fungi action
D.
rarely deteriorates
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