Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Physics in Everyday LifeHeat & Thermodynamics
A thermos flask is used to maintain?
- A.Pressure
- B.TemperatureCorrect answer
- C.Humidity
- D.Volume
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Practice these MCQs in the appQuick fact: A thermos flask is used to maintain temperature by minimizing heat transfer between its contents and the surroundings.