The central symbol in the accompanying figure signifies a ____.
A. plastic pipe
B. footing diameter
C. vapor barrier
D. floor drain
Answer: D
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Refer to the figure above. The type of support that is eccentric on the inside radius of the elbow is a type _____ support.
a. of lateral
b. 1
c. 3
d. of weak
Which of the following statements is LEAST-Likely true?
A. Ethylene glycol coolant is mixed with purified water until its concentration is correct. B. When coolant strength has been allowed to become weak or additives are depleted, a coolant flush and change is recommended. C. Draining off a quart of coolant and adding straight coolant can weaken a slightly weak concentration. D. Coolant in too high a concentration can be further diluted with purified water.
A critical design consideration is that the shear wall sections stack (in)_____________.
A. Diagonally B. Horizontally C. vertically D. parallels
Pioneers in the development of early commercial synthetic plastics struggled with ____. ?
A. ?temperature control in making plastics B. ?finding raw material C. ?the purity of the chemicals in making plastics D. ?understanding chemical reactions