A commonly used floor system in poured-in-place concrete, the ____ combines a thinner slab with concurrently poured joists or ribs to create a floor system very similar to a precast concrete double-tee system.
A. one-way ribbed system
B. one-way solid slab-and-beam system
C. two-way solid slab-and-beam floor system
D. two-way flat-plate floor system
Answer: A
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Noah Webster's dictionary
A. had little impact until the 20th century. B. helped to standardize the American language. C. was used to educate 19th-century slaves. D. came to the United States from Britain in the 1800s. E. gave legitimacy to American slang.
The highest AFUE-rated oil furnace that a technician is likely to encounter is _____.
a. 78 percent b. 80 percent c. 86.5 percent d. 95 percent
A freezestat is a _____.
a. normally closed bimetal switch b. normally open bimetal switch c. digital control d. thermostat that has seized
Air at 10°C and 60% humidity is heated to 25°C. Estimate the final humidity. (Use the chart.)
A) 32% B) 28% C) 24% D) 21%