Telangana Board Solutions for Chapter: Combustion, Fuels and Flame, Exercise 1: Improve your learning

Why the fire brigade start the work by putting off the electric mains?

Explain giving reasons: In which of the following situations water will get heated in a shorter time?

a) Srikar kept water beaker near the wick in the yellow part of a candle flame.

b) Sonu kept water beaker in the outermost part of the flame.

 Why is phosphorus preserved in water?

How do you feel about “Fuels have become a part of human life”?

The lowest temperature at which a substance catches fire is called its

The unit of calorific value is

Spirit and petroleum turns into a gas at

The type of combustion in which material suddenly burns into flames without the application of external agent is called