Workshop Technology Questions

• A saw which cuts wood during the return stroke of the saw is known as
• In sheet metal blanking, shear is provided on punches and dies so that
• The bloom is smaller than a billet.
• In shielded arc welding
• Surface plate is used to check the trueness of flat surfaces.
• The ferrous metals require more machining allowance than non-ferrous metals.
• In __________ welding, the weld may be made either from left to right or from right to left.
• The type of file used for a wood work is
• The accuracy of micrometers, calipers, dial indicators can be checked by a
• A zinc diffusion process is called
• In spot welding, the spacing between two spot weld should not be less than
• When the weld is made from left to right, it is known as back-hand welding.
• The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
• If the sand is too fine, its permeability will be high.
• The cold working of metals is carried out
• The current in electric resistance welding can be regulated by
• Cold working requires much higher pressure that hot working.
• An oxidising process used for aluminium and magnesium articles is called
• The operation of straightening a curved sheet metal, is known as
• In a __________ , both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.