Primary air adjusters on atmospheric type gas burners are usually ____.

A. butterfly shutters
B. sliding sleeves
C. spoiler screws
D. all of the above


Answer: D

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If you were asked to invest $2500.00 in a piece of equipment that you would charge the customer $75.00 each time the equipment was used and it was expected be use 100 times per year, what would you expect to be your ROI?

A) $5000.00 B) $2575.00 C) $2425.00 D) $3600.00

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Citrus fruits are high in vitamin _____

a. A c. D b. C d. B

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Technician A says that diesel engines use heavy duty components because of the lower compression. Technician B says that diesel and gasoline powered vehicles use the same fuel tank and fuel pump. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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____ reflectance is the fraction of electromagnetic energy that an object or surface reflects.

A. External B. Solar C. Surface D. Liner

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