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  9. Q77

UKPSC PCS 2010 · Question 77 of 138

Food is cooked faster in a pressure cooker because

Science

  1. AHeat cannot escape from the cooker.
  2. BStream is colder than the boiling water.
  3. CDue to high pressure the boiling point of water is raised.Correct
  4. DWater starts boiling at the low temperature.

Answer: C. Due to high pressure the boiling point of water is raised.

Explanation

High pressure raises the boiling point of water, so food cooks faster.

Source: UKPSC Lower PCS Prelims 2010 (Combined Lower Subordinate Services Exam), held 2011

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