____ are hardwood blocks with threaded rods through them.
a.Wood screws
b.C clamps
c.Spring clamps
d.Quick clamps
ANS: A
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The ____ is the principal manager of the work, oversees the subcontractor as the work is being accomplished, supervises the general contractor's own labor forces, and correlates all of the functions of the site construction staff.
A. foreman B. craftsperson C. subcontractor D. superintendent
_______________ is a measure of how easily a medium can carry magnetic lines of flux and become magnetized.
Fill in the blank(s) with the appropriate word(s).
Beginning around 250 million years ago, the accumulation of dead algae led to the formation of a(n) ____ zone along the bottom of coastal waters
a. aerobic c. benthic b. anoxic d. aphotic
Which of the following expressions of Ohm’s law is not correct?
A. E = I × R B. I = E ÷ R C. R = E ÷ I D. R = E × I