Question

Extra Questions Value-Based Questions Question 1. Sourav was heating oil to fry potato chips. The cooking oil all of a sudden caught fire. He took water to pour on the fire to extinguish it. But meanwhile his mother came and switched off the gas and covered it completely with a plate.  Do you think pouring water to the burning oil would have worked? Why?  Do you think what Sourav’s mother had done is right? Why?  Can you suggest other ways in which we can stop fire due to burning oil?  What values of Sourav and Sourav’s mother are shown here? Question 2. During a class discussion on ‘fuels for household’ Sarita suggested petrol. But her teacher said it is not a safe fuel for household activity and asked her to sit. Sarita wondered why petrol can’t be used as a fuel for household activity though its calorific value is high.  Why petrol is not a safe fuel for household activity?  What fuels do we use in our houses?  What value of Sarita is shown here?

Answer 1

Answer:

1) 1.No. As oil being lighter than water will come up and spill all around resulting in a major accident

  2.Sourav's mother had done right because she cut off the heat and oxygen supply from the oil. The fire will ultimately extinguish if it doesn't get the required supply of air. ... By using fire extinguisher. By putting a completely wet towel on the pan to cut off the air supply.

  3          Extinguish with Water.

•      Extinguish by Cutting Power.

•      Extinguish with Chemical Fire Extinguishers.

•       Professional Fire Damage Restoratio

2)1. because the calorific value of petrol is very heigh and can get fire easily

   2. CNG and Kerosene can bee ysed in our home

   3 .she is a good adviser and she is intrested in science

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