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Home » Unit 2 LPT Milk Quiz

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Unit 2 LPT Milk Quiz

Wise IAS September 29, 2024

Punjab VO Course LPT Milk Unit 2 LPT Milk Unit 2 LPT Milk Quiz

Topics Covered

Collection, chilling, standardization, pasteurization, UHT treatment, homogenization, bactofugation.
Determination of efficiency of pasteurization
Microbiological deterioration of milk and milk products.

Time limit: 0

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Question 1 of 10

1. Question
1. The shelf life of pasteurized milk kept at less than 8°C is: (PPSC 2016)
- 1-2 days
- 3-5 days
- 6-8 days
- 10-15 days
Correct

Incorrect
Question 2 of 10

2. Question
2. An indicator organism for efficient pasteurization is: (PPSC 2022)
- Mycobacterium tuberculosis
- Coxiella burnetti
- Mycobacterium bovis
- Bacillus anthracis
Correct

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Question 3 of 10

3. Question
3. Due to homogenization, area of milk fat increases (UPPSC)
- 2 times
- 3 times
- 4 times
- 5 times
Correct

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Question 4 of 10

4. Question
4. Efficacy of pasteurization is judged by: (PPSC 2016), (OPSC, MPPSC)
- Dye reduction test
- Alkaline phosphatase test
- Amylase test
- Malachite test
Correct

Incorrect
Question 5 of 10

5. Question
5. Which of the following is not a part of lactoperoxidase system in milk (HPSC 2018)
- Phosphatase
- Hydrogen peroxide
- Thiocyanate
- Lactoperoxidase
Correct

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Question 6 of 10

6. Question
6. In a positive phosphatase test, a para-nitrophenol is liberated that gives………. colour under alkaline condition. (MPPSC)
- pink
- violet
- blue
- yellow
Correct

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Question 7 of 10

7. Question
7. In the HTST type of pasteurisation of milk the temperature and time is (RPSC 2013)
- 73 °C to 76 °C for 60 seconds
- 75 °C to 78 °C for 45 seconds
- 72.2 °C to 72.8 °C for 15 seconds
- 74.2 °C to 75.2 °C for 30 seconds
Correct

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Question 8 of 10

8. Question
8. Pasteurized milk should be stored at:
- 5°C or below
- 10°C
- 20°C
- 15°C
Correct

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Question 9 of 10

9. Question
9. ____ create trouble in dairy industry because of their resistance to pasteurization and sanitization procedure
- Spore forming bacteria
- Virus
- Mold
- Yeast
Correct

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Question 10 of 10

10. Question
10. —————is the process of removal of microorganisms from milk using centrifugal
- Bactofugation
- Chilling
- Pasteurization
- Sterilization
Correct

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