A refrigerant that is a mixture of water and another chemical that has a lower freezing point than water is referred to as
A) A blend B) A primary refrigerant
C) A brine D) An HFC - a hyper frozen coolant
C
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A inflationary gap occurs in the economy when
A) Aggregate demand is perfectly elastic. B) Aggregate demand is greater than potential GDP. C) Aggregate demand is greater than full employment output. D) None of the above
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Name three groups of organisms from the plant kingdom that are often found in soil
What will be an ideal response?
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A vernier caliper may be used to measure rotor runout.
Answer the following statement true (T) or false (F)
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Organizations that provide duct installation standards and guidelines include
A) EPA and OSHA B) ACCA and SMACNA C) AHRI and HVAC Excellence D) Underwriters Laboratories and the National Fire Protection Association
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