Why does a fractionating column does not catch fire even though it operates at temperature greater than 400 degree C ?
5 11429Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...
1838Hai I have completed my I T I Electrician with N.C.V.T and already I have B license too. I have a 10 years experience in electrical field then how to get the c license
2 9040wht is snap action switch?where it is used?is there any diff between snap action switch and normal pressure switch?
1 3266what will happen if instead of neutral we use earth wire as return conductor?if we can use ,then why we are not using in our day to day appliances?please justify the answer
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