Define calorific value of a fuel.
The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its calorific value. The calorific value of a fuel is expressed in a unit called kilojoule per kg (kJ/kg).
What type of fire extinguisher is used to extinguish fire caused by electricity ?
Carbon tetra chloride fire extinguisher.
Name the type of fire extinguisher used for extinguishing oil fires.
Foam type fire extinguisher.
What is global warming ?
Heating up of the earth's atmosphere due to trapping up of the infrared radiation by carbon dioxide in the atmosphere is called global warming.