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Food Processing Unit Operations Practice Test: Heat Transfer Applications
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Heat Transfer Applications topics include: Continuous flow heat exchangers, batch and plate heat exchangers, food thermal properties, thermal processing, pasteurization, sterilization, refrigeration, chilling and freezing. Heat transfer methods are used in many fields, including: Automotive engineering Thermal management of electronic devices and systems Climate control Insulation Materials processing Chemical engineering Power station engineering  Here are some applications of heat transfer: Food industry: Heat transfer is important in the design of equipment and the quality of the... Show more
Food Processing Unit Operations Practice Test: Heat Transfer Applications
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25 Questions

1. What is the pasteurization temperature of egg?
2. __________is used for horizontal thermosyphon reboilers.
3. Are these statements about the D value true?
Statement 1: D -value is lower in acid foods.
Statement 2: D-value for the same organism varies depending on the food type.
4. The pasteurization process was named after ______________
5. Which liquid has highest latent heat of vaporization?
6. What is main advantage of Brazed Plate Heat Exchanger?
7. ______ chillers are also called as centrifugal chiller type refrigeration systems.
8. __________ uses an intermediate fluid or solid store to hold heat.
9. The sterilization of ________ is generally carried out by retorts.
10. What are the factors to be considered for designing a heat exchanger?
11. Are these statements about the pasteurization true?
Statement 1: Pasteurization kills the spores of bacteria.
Statement 2: Raw milk may contain pathogens.
12. Which is the common fouling mechanism seen when untreated water is used as the coolant?
13. Which of the following is called as cold pasteurization?
14. __________ is used mainly in low acid canned foods.
15. The first ice making machine used brewing was invented by ___________
16. Which exchanger is called as modified floating-head shell-and-tube exchanger?
17. _________ is defined as the time taken at a given temperature to eliminate at least 90% of the exposed microorganisms.
18. Vat Pasteurization is also known as ___________
19. Who discovered latent heat?
20. Which of the following statements about sterilization are correct?
Statement 1: Sterilization is achieved by a heat and chemicals alone.
Statement 2: Ultraviolet radiation cannot be used for sterilization.
21. ___________ is the difference between the boiling point temperature of the refrigerant in the evaporator coil and the actual temperature of the refrigerant gas as it leaves the evaporator.
22. What is the purpose of the portholes on the plates of plate heat exchangers?
23. Which heat exchanger is most efficient?
24. Air conditioner evaporator coil uses _______ in the heat exchanger.
25. Are these statements about the regenerative heat exchangerstrue?
Statement 1: Regenerators are commonly used in gas/gas heat recovery applications.
Statement 2: Regenerative heat exchangers are also known as capacitive heat exchangers.