MANUAL HANDLING  Manual handling means transporting or supporting a load by hand or bodily force. It includes:   Lifting ·         Putting down ·         Pushing ·         Pulling ·         Carrying ·         Moving…

What is Ammonium Nitrate? Ammonium nitrate is an odorless, colorless or white, crystal salt produced by the reaction of ammonia and nitric acid.   How is Ammonium Nitrate used? Ammonium nitrate is an important component…

PROTECTION  Over-current Protection: The basic idea of an over current ( think of over current as current out of control) protection device is to create a weak link in the system that will stop the flow of electricity before the …