Refractories must be bonded together by ____.
A. applying pressures
B. adhesives
C. soldering
D. twisting
E. none of the above
Answer: A
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____ elevators are used mainly for low-rise installations up to six stories.
A. Freight B. Hydraulic C. Electric D. Residential
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What is an advantage of an electric baseboard heater?
What will be an ideal response?
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____ are principles or standards by which something may be judged or decided.
A. Constraints B. Criteria C. Assessments D. Necessities
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Gate circuits are multi-input, ____________________-output devices.
Fill in the blank(s) with the appropriate word(s).
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