Vertical boring machine
Horizontal boring machine
Precision boring machine
Jig boring machine
A. Vertical boring machine
90°
118°
135°
150°
20° to 40°
40° to 60°
60° to 80°
None of these
Silicon carbide
Aluminium oxide
Sand stone
Diamond
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
Mild steel
Alloy steel
Pig iron
Chilled cast iron
Hard and brittle materials
Soft and ductile materials
Hard and ductile materials
Soft and brittle materials
0.20
0.30
0.50
0.60
Pull broaching
Push broaching
Surface broaching
Continuous broaching
Roughing teeth
Semi-finishing teeth
Finishing teeth
All of these
Occurs at the middle
May not occur at the middle
Depends upon the material of the tool
Depends upon the geometry of the tool
It requires less power than machining metals at room temperature.
The rate of tool wear is lower.
It is used for machining high strength and high temperature resistant materials.
All of the above
Drill remover
Drill puller
Drift
Drill drawer
Torch brazing
Dip brazing
Resistance brazing
Furnace brazing
Face
Fillet
Land
Lead
No relative motion occurs between them
No wear of tool occurs
No power is consumed during metal cutting
No force between tool and work occurs
Single riveted
Double riveted
Both (A) and (B)
None of these
May clear the width of the workpiece
May or may not clear the width of the workpiece
May not clear the width of the workpiece
Should always clear the width of the workpiece
Trimming the surface left by sprues and risers on castings
Grinding the parting line left on castings
Removing flash on forgings
All of these
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
Hardness of the material being ground
Nature of the grinding operation
Finish required
All of these
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
Electrochemical machining
Electro-discharge machining
Ultrasonic machining
None of these
Longitudinally
Crosswise
Vertically
All of these
Low carbon steel
Titanium
Copper
Tin
Plastics
Copper
Cast steel
Carbon steel
Chip thickness ratio
Forces during metal cutting
Wear of the cutting tool
Deflection of the cutting tool
Shear velocity
Chip velocity
Cutting velocity
Mean velocity
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
The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool.
Frequently, more than one cutting edges are in action.
The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge.
All of the above
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