____ is the tendency of members to move upward in response to wind or seismic pressure.
A. Updraft
B. Uplift
C. Straining
D. Loading
Answer: B
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Truck-mounted units that carry all the necessary components for on-site concrete mixing are described as _____.
a. volumetric mixers b. remote plants c. mobile batching plants d. site-based plants
Compressed gases will resume _______________ when released:
a. 50 % original volume b. 71% original volume c. 98% original volume d. 100 % original volume
The process by which plants differentiate from seedling to vegetative to flowering would best be described as:
a. vernalization c. development b. growth d. dormancy
The instructions ona low-pressure switch read "cut-out is cut-in less differential." To set the switch to cut-out at 30 psig:
A) Set both the cut-in psig and differential at 20 psi. B) Set the differential at 45 psi and the cut-in at 15 psig. C) Set the cut-in at 45 psig and the differential at 15 psi. D) Set the cut-in at 45 psig and the differential at 20 psi.