Short answer type questions
Question 1. What do you mean by the term combustion?
Question 2. Why food is known as the fuel for our body?
Question 3. What is Ignition temperature?
Question 4. What are inflammable substances? Give two examples.
Question 5. Why CO2 is considered the best extinguisher for electrical equipment and inflammable materials?
Question 6. What is spontaneous combustion?
Question 7. Explain the explosion with an example
Question 8. What do you understand by calorific value?
Question 9. What is essential for combustion?
Question 10. What is global warming?
Long answer type questions
Question 1. Write the difference between combustible and non-combustible substances.
Question 2. Why is respiration referred to as slow combustion?
Question 3. What is a forest fire?
Question 4. Camphor burns with a flame but charcoal glows why?
Question 5. Explain the different zones of flame with the help of a labelled diagram.
Question 6. What are the harmful effects of increasing fuel consumption on the environment?
Question 7. What is acid rain?