MENU
Question -

Give reasons:
(1) Water is not used to control fires involving electrical equipment.
(2) LPG is a better domestic fuel than wood.
(3) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.



Answer -

  1. Water is not used to control the fire involving electric equipment because it is a good conductor of electricity. It conducts electricity resulting in electric shock to the user.
  2. LPG is better domestic fuel than wood because it neither produces gases nor leaves residues that pollute the environment.
  3. The paper by itself catches fire easily because its ignition temperature is low, while a piece of paper wrapped around an aluminium pipe does not catch fire, because the heat given is absorbed by aluminium paper and the paper does not attain its ignition temperature.

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
×