Minimum at the beginning of the cut and maximum at the end of the cut
Maximum at the beginning of the cut and minimum at the end of the cut
Uniform throughout the cut
None of these
A. Minimum at the beginning of the cut and maximum at the end of the cut
Watch maker's lathe
Sliding head stock automatic lathe
Multi-spindle automatic lathe
Capstan lathe
5 to 10 m/min
10 to 20 m/min
20 to 30 m/min
40 to 60 m/min
By which the face of the tool is inclined towards back
By which the face of the tool is inclined sideways
Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
Up milling
Down milling
Face milling
End milling
0.2 mm
10 mm
20 mm
100 mm
Increase in coefficient of friction
Decrease in coefficient of friction
Decrease in roll radius
Decrease in roll velocity
Lower chip-tool contact area and larger shear angle
Higher chip-tool contact area and smaller shear angle
Lower chip-tool contact area and smaller shear angle
Higher chip-tool contact area and larger shear angle
Increase tool life
Remove chips from bed
Break the chips into short segments
To minimise heat generation
40
30
20
10
Equal to
Less than
More than
None of these
Only hob rotates
Only gear blank rotates
Both hob and gear blank rotates
Neither hob nor gear blank rotates
Becomes longer
May or may not form
Becomes smaller and finally does not form at all
Has nothing to do with speed
Circular Interpolation − clockwise
Circular Interpolation − counter clockwise
Linear Interpolation
Rapid feed
Gas tungsten arc welding
Resistance spot welding
Friction welding
Submerged arc welding
Equal to
Smaller than
Greater than
None of these
250°C
350°C
500°C
900°C
10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
Morse taper
Seller's taper
Chapman taper
Brown and Sharpe taper
Cutting key ways on shafts
Cutting external screw threads
Cutting teeth of spur gears
All of these
Perpendicular to the workpiece
Perpendicular to the direction of tool travel
Parallel to the direction of tool travel
Inclined at an angle less than 90° to the direction of tool travel
0.1 to 0.2
0.20 to 0.25
0.25 to 0.40
0.40 to 0.55
Internal cylindrical grinding
Form grinding
External cylindrical grinding
Surface grinding
Tungsten
Chromium
Silicon
Cobalt
Melting and Evaporation
Melting and Corrosion
Erosion and Cavitations
Cavitations and Evaporation
Single point cutting tool
Two point cutting tool
Three point cutting tool
Multipoint cutting tool
True feed
Chip thickness
Rake angle of the cutting tool
All of these
Metal removal rate is high
High surface finish is obtained
High form accuracy is obtained
High dimensional accuracy is obtained
0.1 to 0.2
0.20 to 0.25
0.25 to 0.40
0.40 to 0.55
Wear resistance
Red hardness
Toughness
All of these
Gang milling
Straddle milling
String milling
Side milling