pressure cooker mein khana jaldi kyu banta hai?

IF rice is cooked in a pressure cooker on the siachen glacirer , at sea beach , and on Deccan plain , which of the following Is correct about the time taken for cooking rice ?

Cooking vegetables and other food in a pressure cooker saves time and fuel because :

Kaale kapdo mein zada garmi kyun lagti hai

Steam is present in a pressure cooker at 1.5 atm pressure and 150^(@)C . If the pressure cooker can withstand a maximum of 4 atm pressure and there is no provision of a weight atop the cooker then at what temperature will the cooker explode?

Food in the pressure cooker is cooked faster, as

A pressure cooker contains air at 1 atm and 30^(@) C . If the safety value of the cooler blows when the inside pressure ge3 atm , then the maximum temperature of the air, inside the cooker can be