Is drilling machine a lever?

a tip of the drilling machine is an example of {LEVER} simple machine. Is a screw considered a lever? A screw is a simple machine that consists of an incl...

How can I get my 12 Roll No?

How to find out roll numbers: Go to On the homepage, click on ‘Roll number finder’ You will be redirected to a new page. Select the class — class 10 or cl...