Question:
Single effect evaporator is normally operated for milk evaporation at:
Single effect evaporator is normally operated for milk evaporation at:
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Single effect evaporator: 54-60°C, 63.5 cm Hg vacuum.
Gentle evaporation for milk concentration.
Gentle evaporation for milk concentration.
Updated On: Aug 18, 2026
- 65-67°C/75 cm Hg vacuum
- 54-60°C/63.5 cm Hg vacuum
- 70-75°C/80 cm Hg vacuum
- 61-64°C/70 cm Hg vacuum
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Evaporators are used to concentrate milk.
The operating conditions are specific.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the operating conditions of evaporators.
Step 3: Detailed Explanation:
Single effect evaporator for milk is operated at 54-60°C with 63.5 cm Hg vacuum.
This temperature-vacuum combination allows gentle evaporation.
Other options have different temperature-vacuum combinations.
Thus, 54-60°C/63.5 cm Hg vacuum is correct.
Step 4: Final Answer:
Single effect evaporator is operated at 54-60°C/63.5 cm Hg vacuum.
Hence, the correct option is (B).
Evaporators are used to concentrate milk.
The operating conditions are specific.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the operating conditions of evaporators.
Step 3: Detailed Explanation:
Single effect evaporator for milk is operated at 54-60°C with 63.5 cm Hg vacuum.
This temperature-vacuum combination allows gentle evaporation.
Other options have different temperature-vacuum combinations.
Thus, 54-60°C/63.5 cm Hg vacuum is correct.
Step 4: Final Answer:
Single effect evaporator is operated at 54-60°C/63.5 cm Hg vacuum.
Hence, the correct option is (B).
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