Friction zone
Work-tool contact zone
Shear zone
None of these
A. Friction zone
Feed marks or ridges left by the cutting tool
Fragment of built-up edge on the machined surface
Cutting tool vibrations
All of these
Hardenability of low carbon steels
Machinability of low carbon steels
Hardenability of high carbon steels
Machinability of high carbon steels
0.1 to 0.2
0.20 to 0.25
0.25 to 0.40
0.40 to 0.55
Rake angle
Cutting angle
Clearance angle
Lip angle
The larger side rake angle produces chipping.
The smaller rake angle produces excessive wear and deformation in tool.
The side cutting edge angle (less than 15°) increases tool life.
The increase in nose radius decreases tool life.
Carbon tool steels
Tungsten carbide tools
High speed steel tools
Ceramic tools
10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
Orthogonal cutting
Oblique cutting
Simple cutting
Uniform cutting
Zero helix angle is used
Low helix angle is used
High helix angle is used
Any helix angle can be used
Counter-sinking
Counter-boring
Trepanning
Spot facing
Counter-boring
Grooving
Knurling
Facing
Porosity
Undercut
Under fill
Crack
Free from corrosion
Stronger in tension
Free from stresses
Leak-proof
Number of pieces machined between tool sharpenings
Time the tool is in contact with the job
Volume of material removed between tool sharpenings
All of the above
Soft grade
Medium grade
Hard grade
None of these
Tool is stationary and work reciprocates
Work is stationary and tool reciprocates
Tool moves over stationary work
Tool moves over reciprocating work
Plastic deformation of metal
Burnishing friction
Friction between the moving chip and the tool face
None of the above
Wear resistance
Red hardness
Toughness
All of these
Increases continuously
Decreases continuously
Decreases, becomes stable and then increases.
Increases, becomes stable and then decreases.
Increase in moisture content beyond 6 percent
Increase in permeability
Decrease in permeability
Increase in both moisture content and permeability
Shear velocity
Chip velocity
Cutting velocity
Mean velocity
Of maximum diameter 15 mm
In 15 mm thick plates
Having cross-sectional area of 15 mm²
None of these
Low cutting speed and large rake angle
Low cutting speed and small rake angle
High cutting speed and large rake angle
High cutting speed and small rake angle
Nose part, front relief face and side relief face of the cutting tool
Face of the cutting tool at a short distance from the cutting edge only
Cutting edge only
Front face only
Holds and locates a workpiece and guides and controls one or more cutting tools
Holds and locates a workpiece during an inspection or for a manufacturing operation
Is used to check the accuracy of workpiece
All of the above
Plastics
Copper
Cast steel
Carbon steel
Geometric progression
Arithmetic progression
Harmonic progression
None of these
Between the tool face and the ground end surface of flank
Made by the face of the tool and the plane parallel to the base of the cutting tool
Between the face of the tool and a line tangent to the machined surface at the cutting point
None of the above
High speed steel
Carbon steel
Wrought iron
All of these
The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face