Calculate the bite angle when rolling plates $$12mm$$ thick using work rolls $$600mm$$ diameter and reducing the thickness by $$3mm$$

The electrodes used in $$arc$$ welding are coated. This coating is not expected to

Generally cylindrical parts produced by powder metallurgy should not have non uniform cross section and a length to diameter ratio exceeding . . . . . . . . . . . . . . .

The ratio of acetylene to oxygen is approximately ................ for neutral flame used in gas welding