WorksheetsPractice Quiz
Total questions: 20
Worksheet time: 2hrs 40mins
Angle between the rake face and plane perpendicular to rake face is known as:
Side rake angle
Side relief angle
End relief angle
Back rake angle
Angle between end cutting edge and axis of tool is known as:
Side rake angle
Side relief angle
End cutting edge angle
Back rake angle
Angle between side cutting edge and end cutting edge in the top surface plane of tool.
Side rake angle
Side relief angle
Side cutting edge angle
Nose angle
With an increase in lip angle keeping side rake angle constant, strength of tool.
Increases
Decreases
Remains constant
None of the mentioned
For large positive back rake angle, tool will be
Weaker
Stronger
Smoother
Harder
For large negative back rake angle, tool will be
Weaker
Stronger
Smoother
Harder
Which of the following will give better chip flow?
Positive back rake angle tool
Negative back rake angle tool
Zero back rake angle tool
None of the mentioned
Which of the following will give large friction during chip flow?
Positive back rake angle tool
Negative back rake angle tool
Zero back rake angle tool
Small lip angle tool
In metal machining, the work-tool contact zone is a zone where heat is generated due to
plastic deformation of metal
burnishing friction
friction between the moving chip and the tool face
none of the above
In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
friction zone
work-tool contact zone
shear zone
none of these
Which is effect of cutting temperature on tool
Thermal fracturing of cutting edges
Formation of built up edge
Rapid tool wear
All of these
Which is effect of cutting temperature on workpiece
Dimensional inaccuracy
Burning
Micro-cracks at the surface
All of these
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
Work tool interface zone in metal cutting operation is located at
Around 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
By increasing depth of cut, the amount of heat generated
Increases
Decreases
Remains constant
By increasing rack angle in positive direction, amount of heat generated
Increases
Decreases
Remains constant
None of the mentioned
Thermal conductivity of cutting tool must be
High
Low
Very low
None of these
