4
Define 'calorific value of a fuel'.
5.
State any two characteristics of an ideal fuel.
6.
Why is water not used in controlling electrical fires?
Answers
Answer:
1. Calorific value is the amount of energy released or produced when 1 kg of fuel burns or any other substance is burnt in the presence of oxygen and the products of combustion are cooled to STP. Its SI unit is kJ/kg.
2. The Characteristics of an ideal fuel are discussed as follows:
The Characteristics of an ideal fuel are discussed as follows:The fuel should have high calorific value.
The Characteristics of an ideal fuel are discussed as follows:The fuel should have high calorific value.The fuel should have proper ignition temperature.
3.We cannot use it to control electric fires as it has a high tendency to carry electricity along itself and thus can be harmful. we do not use water in controlling electrical fires bcoz water is a good conductor of electricity. ... therefore, to prevent this, water is not used in controlling electrical fires.