After heat treatment
Prior to heat treatment
For gear reconditioning
None of these
A. After heat treatment
Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece
Only continuous chip without built-up-edge is produced
Cutting velocity remains constant
All of the above
Diamond is very hard and wear resistant
It occupies very little space
It helps in assembly with tolerance on centre distance
It has a long life
Produce tapers
Grind shoulders and formed surfaces
Grind long, slender shafts or bars
All of these
30°
45°
60°
90°
Roughing teeth
Semi-finishing teeth
Finishing teeth
All of these
High speed steel
Carbon steel
Wrought iron
All of these
Reduce built up edge
Break up chips
Improve machinability
All of these
Side relief angle
End relief angle
Back rake angle
Side rake angle
It improves tool life
It improves the surface finish
Both (A) and (B)
None of these
Gas metal arc welding
Submerged arc welding
Gas tungsten arc welding
Flux coated arc welding
Turning
Grinding
Boring
Milling
Producing grooves around the periphery of a cylindrical or conical workpiece
Producing narrow slots or grooves on a workpiece
Reproduction of an outline of a template on a workpiece
Machining several surfaces of a workpiece simultaneously
20°
30°
45°
60°
Shaping operation
Forming operation
Surface finishing operation
Dressing operation
Rake angles
Relief angles
Face angles
None of these
Becomes longer
May or may not form
Becomes smaller and finally does not form at all
Has nothing to do with speed
90°
118°
135°
150°
Tungsten
Chromium
Silicon
Cobalt
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 tool
Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
70°
100°
118°
130°
Remain constant
Increases
Decreases
First increases and then decreases
Pull broaching
Push broaching
Surface broaching
Continuous broaching
Electrochemical machining
Electro-discharge machining
Ultrasonic machining
None of these
Thread cutting
Turning a work of larger diameter
Turning a hard or tough material
All of these
Reduce the spindle speed
Cut gears
Give desired direction of movement to the lathe carriage
Drill a workpiece
Soft grade
Medium grade
Hard grade
None of these
1 to 3 m/min
5 to 10 m/min
10 to 14 m/min
14 to 20 m/min
Path of shear is short and chip is thin
Path of shear is large and chip is thick
Path of shear is short and chip is thick
Path of shear is large and chip is thin
The temperature of liquid metal drops from pouring to freezing temperature
The metal changes from liquid to solid state at freezing temperature
The temperature of solid phase drops from freezing to room temperature
The temperature of metal drops from pouring to room temperature
Straight fluted reamer
Left hand spiral fluted reamer
Right hand spiral fluted reamer
Any one of these