Author Question: PTAC units are A) Packaged temporary air conditioning units B) Partial temporary air conditioning ... (Read 67 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?

The average adult has about 21 square feet of skin.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

For a complete list of videos, visit our video library