____ polystyrene is a closed-cell foam that resists moisture absorption.
A. Extruded
B. Expanded
C. Rigid
D. Molded
Answer: A
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What are asphalt shingles made of?
What will be an ideal response?
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Some high-temperature slags, called ____________________, solidify before the weld metal solidifies.
Fill in the blank(s) with the appropriate word(s).
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The parallel transmission of digital data:
A) requires as many signal lines between sender and receiver as there are data bits. B) requires only one signal line between sender and receiver. C) is less expensive than the serial method of data transmission. D) is much slower than the serial transmission of data.
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If a microprocessor is used in an AC drive, it is located in which section?
A. converter B. intermediate C. inverter D. control circuit
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