Author Question: PTAC units are A) Packaged temporary air conditioning units B) Partial temporary air conditioning ... (Read 124 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
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

  • Sr. Member
  • ****
  • Posts: 312
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

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.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

For a complete list of videos, visit our video library