Workshop Technology If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be 10 mm/m 16 mm/m 20 mm/m 26 mm/m 10 mm/m 16 mm/m 20 mm/m 26 mm/m ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Piercing is an operation of cutting A hole (other than cylindrical) in a sheet of metal by the punch and the die A cylindrical hole in a sheet of metal by the punch and the die A number of holes evenly spaced in a regular pattern on a sheet of metal A flat sheet to the desired shape A hole (other than cylindrical) in a sheet of metal by the punch and the die A cylindrical hole in a sheet of metal by the punch and the die A number of holes evenly spaced in a regular pattern on a sheet of metal A flat sheet to the desired shape ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Sand wash is a casting defect which Occurs as sand patches on the upper surface of a casting Results in a mismatching of the top and bottom parts of a casting Occurs near the ingates as rough lumps on the surface of a casting Results in general enlargement of the casting Occurs as sand patches on the upper surface of a casting Results in a mismatching of the top and bottom parts of a casting Occurs near the ingates as rough lumps on the surface of a casting Results in general enlargement of the casting ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Thread rolling is restricted to None of these Ductile materials Ferrous materials Hard materials None of these Ductile materials Ferrous materials Hard materials ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Cast iron and steel pipes are produced by Slush casting Investment casting Die casting True centrifugal casting Slush casting Investment casting Die casting True centrifugal casting ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called Blanking Shearing Piercing Punching Blanking Shearing Piercing Punching ANSWER DOWNLOAD EXAMIANS APP
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