Author Question: Open display cases are designed: A) To pull down warm products to refrigerated temperatures. B) ... (Read 19 times)

armygirl · **on:** Jul 24, 2018

Open display cases are designed:

A) To pull down warm products to refrigerated temperatures.
B) To freeze liquid products in less than an hour.
C) To display products that do not need refrigerating.
D) To keep product at the same temperature at which it enters the case.

Question 2

What is the purpose of the heat exchanger?

A) To separate the combustion gas from the circulating air while transferring heat from the circulating air to the combustion gas
B) To exchange the combustion gas for the circulating air in order to transfer heat into the house
C) To mix the combustion gas and the circulating air to transfer heat from the combustion gas to the house
D) To separate the combustion gas from the circulating air while transferring heat from the combustion gas to the circulating air