Which type of humidifier needs to be cleaned more than once a year?

A) Vaporizing B) Steam C) Atomizing D) Evaporative


A

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As concrete is placed in a vertical slip form, the entire form is _____.

a. steadily raised by a jack b. kept perfectly stationary c. forced into the ground d. vented to cure the concrete

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?The quantity of heat in a material is a function of both ________ and ________.

A. ?temperature; mass B. ?amps; watts C. ?welding speed; length D. ?material type; size

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The refrigerant is a high-pressure, warm, subcooled liquid at the inlet of the metering device. The state of the refrigerant is:

A) 75% liquid. B) 95% liquid. C) 50% liquid. D) 100% liquid.

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When testing a lead-acid battery, which of the following would be the recommended load to be drawn by a carbon pile?

A. 1/2 of the CCA rating for 15 seconds B. 100% of the CCA rating for 30 seconds C. 1/2 of the amp/hour rating for 45 seconds D. 1/2 of the amp/hour rating for 15 seconds

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