What must be considered when performing a heat load calculation for a walk in cooler or freezer are:
A) The style of evaporator, the box temperature, and the type of refrigerant.
B) The volume of the case, the temperature to be maintained, and the air changes per hour.
C) Heat gain through the walls, floor, and ceiling.
D) Heat transmission, air infiltration, and product load.
D
You might also like to view...
Which of the following is an NEC® requirement for grounding and bonding cable tray installations?
a. Only single conductor cable may be used in cable trays used as equipment grounding conductors. b. Nonmetallic cable trays must be bonded with flexible bonding jumpers. c. Steel or aluminum trays may be used as equipment grounding conductors. d. Metal cable tray does not require bonding.
Most irrigation systems are very inefficient with less than half the water that is taken from streams ever reaching the plants
Indicate whether the statement is true or false
When water gets into a refrigeration system, chemical reactions inside the system often create:
A) Fluoride crystals. B) Acid. C) Phosgene gas. D) Combustible gas.
The oldest known plan dates back to around what year?
A) 2100 BC B) 3600 BC C) 1492 AD D) 1066 AD