____ rates and certifies most fenestration products.

A. ENERGY STAR
B. The NFRC
C. The NFA
D. The SHGC


Answer: B

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Explain the meaning of tire aspect ratio.

What will be an ideal response?

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a. scissors b. cable cutters c. pliers d. a cable reamer

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The prefix letter ____________________ indicates an arc welding electrode.

Fill in the blank(s) with the appropriate word(s).

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A) A current multiplier B) An open-loop amplifier C) A comparator D) An inverter

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