In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?1. Area of the hole in the lid2. Temperature of the flame3. Weight of the lidSelect the correct answer using the code given below.
✓ Correct answer: c) 1 and 3 only
ExplanationA pressure cooker is a sealed chamber that traps the steam generated as its contents are heated.As steam builds, pressure increases, driving the boiling point of water past 212°F (100°C).In general, this higher temperature shortens cooking times and, due to a lack of evaporation, extracts flavor more efficiently from foods.Statement 1 is correct: The area of the hole directly influences the pressure and temperature inside the cooker.The hole in the lid is where steam escapes through the pressure regulator (weight valve).A smaller hole allows less steam to escape, which increases the pressure inside, raising the boiling point of water and increasing the cooking temperature.If the hole is larger, more steam escapes, reducing the pressure and lowering the cooking temperature.Statement 2 is incorrect: A higher flame heats the pressure cooker faster but it does not increase the maximum cooking temperature once the cooker reaches its operating pressure.The pressure and temperature inside the cooker are controlled by the pressure regulator (weight valve), not the external flame.Onc
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