What are different types of combustion?
Combustion is of three types :
(i) Rapid combustion : When gases burn rapidly to produce heat and light it is called rapid combustion.
(ii) Spontaneous combustion : When any material like phosphorus burns on its own without any apparent cause, it is called spontaneous combustion.
(iii) Explosion : When combustion takes place with sudden release of heat and light and a large amount of gas in form of bang, it is called explosion as in case of crackers and bombs.
A liquid fuel, used in homes is __________
List conditions under which combustion can take place.
Conditions necessary for combustion are :
(i) Presence of combustible substance.
(ii) Attainment of ignition temperature.
(iii) Proper supply of air to provide oxygen.
Burning of wood and coal causes __________ of air.
Fire produced by oil cannot be controlled by ___________ .
Fuel must be heated to its __________ before it starts burning.