MEDIUM
8th CBSE
IMPORTANT
Earn 100

In combustion, the material has an internal supply of oxygen. (slow/ explosive/ rapid)

67.65% studentsanswered this correctly

Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 4
A fire that is caused by oil or combustible gases can be extinguished by using a _____ extinguisher.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 5
_____ is an area of burning gases.
MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 6
In the _____ zone, partial combustion of wax vapour takes place and a lot of heat energy releases.
 
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 7
Higher the _____ value higher the amount of heat produced by the fuel.
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 1
A smaller amount of fuel catches fire more easily than a large amount of the same fuel.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 2
A forest fire is an example of explosive combustion.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 3
The most common fire extinguisher that we see in buildings is a soda acid fire extinguisher.
MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 7 - Combustion and Flame>EXERCISE>Q 4
The wick of the candle is the fuel which burns when a candle is lit.