Practice Quiz

Primary deformation zone in metal cutting operation is located at:

• Around shear plane

• Tool chip interface

• Tool work piece interface

• Tool face

Secondary deformation zone in metal cutting operation is located at:

• Shear plane

• Tool chip interface

• Tool work piece interface

• Tool face

Temperature rise in primary deformation zone is generally due to:

• Plastic deformation of metal in shear zone

• Friction between tool and chip

• Rubbing action of tool piece with work piece

• None of the mentioned

Temperature rise in secondary deformation zone is generally due to:

• Plastic deformation of metal in shear zone

• Friction between tool and chip

• Rubbing action of tool piece with work piece

• None of the mentioned

If heat transferred to the atmosphere is neglected, then the average amount of heat in % carried away by chips is nearly equal to:

• 70

• 15

• 20

• 96

If heat transferred to atmosphere is neglected, then the average amount of heat in % transferred to tool is nearly equal to:

• 70

• 15

• 20

• 96

If heat transferred to atmosphere is neglected, then the average amount of heat in % transferred to work piece is nearly equal to:

• 70

• 15

• 20

• 96

By increasing cutting speed, amount of heat generated

• Increases

• Decreases

• Remains constant

• None of the mentioned

Amount of heat generated in shear plane is:

• Directly proportional to shear angle

• Inversely proportional to shear angle

• Does not depend on shear angle

• None of the mentioned

Temperature rise in primary deformation zone is generally due to

• Plastic deformation of metal in shear zone

• Friction between tool and chip

• Rubbing action of tool piece with work piece

• None of the mentioned