The accompanying figure shows an assortment of mechanical symbols. What is the symbol at the bottom?

A. Rectangular ceiling diffuser
B. Round ceiling diffuser
C. Flexible connection
D. Transition


Answer: D

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To add 1/2 and 1/16 where both denominators are different, you must first find the common denominator. In this case, it is ____.

A. 32 B. 16 C. 8 D. 2

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OTA stands for operational transistor amplifier

Indicate whether the statement is true or false

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What is NOT important to the plumber installing a sink (although it may be important to the customer)?

A. size B. price C. number and location of drain openings D. number of faucet and accessory holes

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____-based insulation is created from plants, animals, or other renewable sources.

A. Environment B. Bio C. Non-waste D. Green

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