Food Refrigeration and Cold Chain Management MCQs

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1. : The main objective of food refrigeration is to?
(A) Increase food weight
(B) Slow down microbial growth and enzyme activity
(C) Improve soil fertility
(D) Increase respiration rate

2. : The recommended refrigeration temperature range for fresh fruits and vegetables is?
(A) 0–5 °C
(B) 10–15 °C
(C) 20–25 °C
(D) –20 °C

3. : Cold chain management ensures?
(A) Low temperature maintenance from harvest to consumer
(B) Faster ripening of produce
(C) Higher fertilizer application
(D) Increased soil fertility

4. : The freezing temperature of water is?
(A) –10 °C
(B) 0 °C
(C) 5 °C
(D) –5 °C

5. : Refrigeration preserves food mainly by?
(A) Killing microorganisms instantly
(B) Reducing microbial growth rate
(C) Changing taste and flavor
(D) Increasing nutrient content

6. : Which of the following is a frozen storage temperature?
(A) 0 to 5 °C
(B) –18 °C or below
(C) 10 to 15 °C
(D) 25 °C

7. : Which refrigerant is most commonly used in commercial refrigeration systems?
(A) Ammonia (NH₃)
(B) Oxygen
(C) Nitrogen
(D) Helium

8. : Refrigerated transport vehicles are called?
(A) Silos
(B) Reefer trucks
(C) Cold bins
(D) Freezer crates

9. : The main component of a refrigeration system that compresses the refrigerant is?
(A) Evaporator
(B) Compressor
(C) Condenser
(D) Expansion valve

10. : In cold chain management, pre-cooling of harvested produce helps to?
(A) Increase respiration
(B) Remove field heat quickly
(C) Increase microbial growth
(D) Improve soil quality

11. : The main purpose of controlled atmosphere storage in cold chain is?
(A) To increase oxygen concentration
(B) To reduce respiration and delay ripening
(C) To increase ethylene production
(D) To speed up microbial growth

12. : The evaporator in a refrigeration system functions to?
(A) Absorb heat from the product
(B) Release heat to the surroundings
(C) Compress refrigerant
(D) Regulate pressure

13. : Which commodity is highly perishable and needs strict cold chain management?
(A) Rice
(B) Milk and dairy products
(C) Wheat
(D) Sugar

14. : The cold chain system is MOST essential for?
(A) Fertilizers
(B) Fresh fruits, vegetables, meat, and dairy products
(C) Cement
(D) Grains in silos

15. : Refrigeration slows down spoilage by affecting?
(A) Photosynthesis
(B) Respiration and microbial activity
(C) Seed germination
(D) Soil moisture

16. : Which gas is used in cryogenic freezing of food?
(A) Oxygen
(B) Nitrogen (liquid)
(C) Carbon monoxide
(D) Helium

17. : The main role of the condenser in a refrigeration system is?
(A) Absorb heat from the product
(B) Release heat from refrigerant to surroundings
(C) Increase product temperature
(D) Store liquid refrigerant

18. : Which fruit is usually stored at 0–2 °C in cold storage?
(A) Banana
(B) Mango
(C) Apple
(D) Papaya

19. : The process of lowering the temperature of produce immediately after harvest is called?
(A) Pre-cooling
(B) Refrigeration
(C) Blanching
(D) Freezing

20. : The term “reefer container” refers to?
(A) A container used for storing fertilizers
(B) A refrigerated shipping container
(C) A type of warehouse
(D) A packaging box

21. : Which of the following foods is most sensitive to chilling injury?
(A) Tomato
(B) Apple
(C) Potato
(D) Milk

22. : In the cold chain, “last mile delivery” refers to?
(A) Transport from farm to storage
(B) Transport from storage to processing unit
(C) Transport from retailer to final consumer
(D) Transport from port to warehouse

23. : The cold storage temperature for frozen meat is?
(A) 0–5 °C
(B) –18 °C or below
(C) 10–15 °C
(D) –5 °C

24. : Cold chain management plays a crucial role in reducing?
(A) Field losses only
(B) Post-harvest and transportation losses
(C) Fertilizer costs
(D) Seed dormancy

25. : The ultimate goal of food refrigeration and cold chain management is to?
(A) Increase ripening rate
(B) Maintain quality, safety, and extend shelf life
(C) Reduce food nutrients
(D) Increase weight of food