23. Piped Natural Gas (PNG) is used for A.Mining B.Welding C.Anaesthesia D.Cooking
Answer: Option D Solution: LPG is Liquefied Petroleum Gas and PNG is Piped Natural Gas. LPG is supplied in liquid form just as the name suggests in cylinders whereas PNG is supplied through a pipeline. LPG is used as a fuel in heating appliances and vehicles, where as PNG is used for cooking (gas stoves) and heating water (gas geysers).
