Coefficient of friction
Microstructure
Work hardening characteristics
All of these
D. All of these
0.20
0.30
0.50
0.60
Cutting speed
Feed rate
Shear angle
Tool geometry
Corrosion
Erosion
Fusion
Ion displacement
Longitudinally
Crosswise
Vertically
All of these
Single riveted
Double riveted
Both (A) and (B)
None of these
Work surface
Tool face
Machine surface
None of these
Truing
Dressing
Facing
Clearing
Becomes longer
May or may not form
Becomes smaller and finally does not form at all
Has nothing to do with speed
Rake angle
Clearance angle
Lip angle
Point angle
Electrochemical machining
Electro-discharge machining
Ultrasonic machining
None of these
Brittle metals
Ductile metals
Hard metals
Soft metals
After heat treatment
Prior to heat treatment
For gear reconditioning
None of these
Outside diameter but not roundness
Roundness but not outside diameter
Both outside diameter and roundness
Only external threads
Increase machining accuracy
Facilitate interchangeability
Decrease expenditure on quality control
All of these
Roughing teeth
Semi-finishing teeth
Finishing teeth
All of these
Sprue base area: runner area: ingate area
Pouring basin area: ingate area: runner area
Sprue base area: ingate area: casting area
Runner area: ingate area: casting area
Circular Interpolation − clockwise
Circular Interpolation − counter clockwise
Linear Interpolation
Rapid feed
Straight fluted reamer
Left hand spiral fluted reamer
Right hand spiral fluted reamer
Any one of these
A set of grid points on the surface
A set of grid control points
Four bounding curves defining the surface
Two bounding curves and a set of grid control points
1.02
1.32
1.66
1.82
High speed steel
Hypo eutectoid steel
Hyper eutectoid steel
Cast iron
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
Friction zone
Work-tool contact zone
Shear zone
None of these
Same throughout
In progressively decreasing order
In progressively increasing order
None of these
By a form tool
By setting over the tail stock
By a taper turning attachment
By swivelling the compound rest
High carbon steel tools
High speed steel tools
Cemented carbide tools
All of these
Gas tungsten arc welding
Resistance spot welding
Friction welding
Submerged arc welding
At its recrystallisation temperature
Above its recrystallisation temperature
Below its recrystallisation temperature
At two thirds of the melting temperature of the metal
Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
Aluminium oxide wheels are employed.
The grinding wheel has to be of open structure.
All of the above
Brinell hardness number
Rockwell hardness number
Vickers pyramid number
Letter of alphabet