?What rating is assigned to all electric, gas, and oil-fired storage type water heaters sold in the United States?
A. ?peak hour rating
B. ?first hour rating
C. ?demand-load rating
D. ?last hour rating
Answer: B
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A ____ is a platform in the middle of the stairs.
A. baluster B. post C. landing D. tread
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Social mobility at the end of the nineteenth century was increasingly determined by which of the following?
a. education level b. class origin c. wealth d. ancestry
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Parking is never permitted:
a. in a crosshatched (diagonal) pattern space b. in a bicycle lane, unless otherwise posted c. twenty feet from a railroad track
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Which type of ladder can be converted from a straight ladder to an A-frame configuration?
a. fresno b. combination c. attic d. folding
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