Seven times a number plus four times the number equals 66. Find the number.
A. 4
B. 5
C. 6
D. 7
Answer: C
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The substance that is not one of the criteria air pollutants is
a. SO2 b. NO2 c. CO2 d. O3 e. CO
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What do the terms process heated and cooled refer to?
What will be an ideal response?
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The most widely used products in stormwater drainage systems are ____.
A. corrugated pipe and concrete pipe B. stainless steel pipe and copper pipe C. carbon steel pipe and brass pipe D. titanium pipe and cast iron pipe
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When used in a dehumidification application, the purpose of a heat pipe heat exchanger includes _____
a. removing sensible heat from the air supply b. precooling the air entering the evaporator c. preheating the air entering the evaporator d. providing emergency heat if the compressor fails
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