Question

Work required in maintaining a chamber at a certain temperature is dependent on _____

(a) Temperature of outside air

(b) Surface area of the storage chamber

(c) Amount and kind of insulation material

(d) All of the mentioned

The question was posed to me during an interview.

This interesting question is from Principles of Food Freezing-1 topic in chapter Food Preservation, Principles of Fresh Food Storage,  Principles of Refrigerated Gas Storage of Foods and Principles of Food Freezing of Food Engineering

Answer 1

Correct answer is (d) All of the mentioned

To explain I would say: All of the mentioned are factors on which work required in maintaining a chamber at a certain temperature is dependent on.