Question

Q1) explain how an iron rim is mountain on a wooden cart wheel ?

Q2) explain with the help of a diagram the working of an automatic fire alarm ?

don't dare to copy from Go.ogle !! ​

Answer 1

Answer:

1. Answer: For fixing the metal rim on a wooden wheel of a cart, the metal rim is made slightly smaller than the wooden wheel. On heating, the rim expands and fits onto the wheel. Cold water is then poured over the rim, which contracts and fits tightly onto the wheel.

Answer 2

Answer:

• here is your answer you could have told me in What.sApp I must have explained you there only..
• don't take this much stress if you are not able to do this then don't worry I will help you in tomorrow's paper..

• why you study this hard during exams ?? be relaxed and sleep on time you sleep at 11 or 12it's not good