Author Question: The approximate heating value of propane is: A) 1,780 BTU per cubic foot. B) 1,000 BTU per cubic ... (Read 138 times)

Hungry! · **on:** Jul 24, 2018

The approximate heating value of propane is:

A) 1,780 BTU per cubic foot. B) 1,000 BTU per cubic foot.
C) 3,200 BTU per cubic foot. D) 2,500 BTU per cubic foot.

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) Water B) R-22 C) R-134A D) Ammonia