Production Engineering Questions

• Discontinuous chips are formed during machining of
• The lathe centres are provided with standard taper known as
• The operation of smoothing and squaring the surface around a hole is known as
• In metal cutting operations, the shear angle is the angle made by the shear plane with the
• An operation of enlarging the end of a hole cylindrically is known as grooving.
• Which of the following statement is wrong as regard to down milling?
• The infeed grinding is similar to plunge grinding.
• Cemented carbide tools are generally poor in shear.
• If the cutting speed is increased, then the built-up-edge
• It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be
• The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
• A tool used to withdraw a drill from the sleeve is called
• Fixtures are used
• The lip angle is the angle
• Crater wear is mainly due to the phenomenon known as
• Flank wear depends upon the
• The carbide tools operating at very low cutting speeds (below 30 m/min)
• The abrasive recommended for grinding materials of low tensile strength is
• The addition of lead, sulphur and phosphorus to low carbon steels, help to
• The cutting fluid mostly used for machining steel is