Question

1. Why is water not always used for extinguishing fire?
2. State any two characteristics of an ideal fuel.​

Answer 1

Answer:

1.Water is not suitable for extinguishing a fire in an electrical appliance. If water is poured on an electrical fire, it can conduct electricity and cause electric shocks to the person trying to extinguish the fire.

2.The Characteristics of an ideal fuel are discussed as follows:

The fuel should have high calorific value.

The fuel should have proper ignition temperature.

The rate of combustion should be balanced and moderate.

The content of non-volatile substances should be as low as possible.