Gate 2015 mechanical

SMAW:Shielded metal arc welding ,an arc welding process where is coalescence is produced by heating with an arc b/w the metal electrodes and workpiece.shielded is accompained by decomposition of electrode coating.the coating on the electrode burns along on the metal of electrode and produce a dense smoke which shield the weld pool

kelvin plank's law deals with a)conversion of heat into work. b)conversion of work into heat. C)conversion of work

forging of steel is done at a temperature of . A)400'c b)1000'c c)1200'c d)860'c