Production Engineering Questions

• The average cutting speed for turning mild steel with a high speed steel tool is
• A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is
• The taper on the lathe spindle is
• The tool life is __________ cutting speed.
• The aluminium oxide abrasive is chiefly used for grinding
• In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
• In a shaper
• The operation of making a cone-shaped enlargement of the end of a hole is known as
• The method of grinding used to produce internal cylindrical holes and tapers, is
• For turning small taper on long workpiece, the suitable method is
• The shear velocity is the velocity of
• In drilling bakellite and fibrous plastics, the point angle of a drill is
• The vector sum of cutting velocity and chip velocity is __________ shear velocity.
• The angle between the lathe centres is
• The rate of removing metal is __________ by increasing the depth of cut.
• A grinding wheel is said to be of __________ if the abrasive grains can be easily dislodged.
• In a shaper, the metal is removed during
• Which of the following statement is correct about EDM machining?
• The time (in minutes) for a drilling a hole is given by where h is the
• In __________ operation, the cutting force is maximum when the tooth begins its cut and reduces it to minimum when the tooth leaves the work.