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Author Question: PTAC units are A) Packaged temporary air conditioning units B) Partial temporary air conditioning ... (Read 136 times)

Chloeellawright

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on: Jul 26, 2018
PTAC units are
 
  A) Packaged temporary air conditioning units B) Partial temporary air conditioning units
  C) Partial trajectory air conditioning units D) Packaged terminal air conditioning units

Question 2

Chilled water systems use a primary refrigerant to remove heat from a secondary refrigerant in a chiller unit. What is the secondary refrigerant in such systems?
 
  A) Ammonia B) R22 C) R134A D) Water


SamMuagrove

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Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

D


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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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