Poor surface finish is obtained
There is sudden increase in cutting forces and power consumption
Overheating and fuming due to heat of friction starts
All of the above
D. All of the above
Silicon carbide
Aluminium oxide
Sand stone
Diamond
Orthogonal cutting
Oblique cutting
Simple cutting
Uniform cutting
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
0°
10°
20°
100°
On universal milling machine
On plain milling machine
In a tank containing an etching solution
Any one of these
Mild steel
Copper
Aluminium
Brass
Thread milling
Thread chasing
Thread cutting with single point tool
Thread casting
Grinding
Lapping
Honing
Buffing
Continuous chips are formed
Discontinuous chips are formed
Continuous chips with built-up edge are formed
No chips are formed
Ceramic
Stellite
Diamond
Cemented carbide
Length between centres
Swing diameter over the bed
Swing diameter over the carriage
All of these
Increase machining accuracy
Facilitate interchangeability
Decrease expenditure on quality control
All of these
It can machine hardest materials.
It produces high degree of surface finish.
The tool and work are never in contact with each other.
All of these
Soft grade
Medium grade
Hard grade
None of these
Hard materials
Brittle materials
Finishing cuts
All of these
Knurling
Rough turning
Boring
Thread cutting
Cutting key ways on shafts
Cutting external screw threads
Cutting teeth of spur gears
All of these
Surface finishing
Undercut gears
Cycloidal gears
Removing residual stresses from teeth roots
30°
45°
60°
90°
Forehand welding
Flux cored ARC welding
Electro slag welding
Pulsed spray welding
2.17 rpm, 600 joules
6.8 rpm, 6 joules
5.03 rpm, 600 joules
22 rpm, 600 joules
Counter-sinking
Counter-boring
Trepanning
Spot facing
Porosity
Undercut
Under fill
Crack
40
30
20
10
Helix or rake angle
Point angle
Chisel edge angle
Lip clearance angle
Zero rake angle
Positive rake angle
Negative rake angle
Point angle
Produce tapers
Grind shoulders and formed surfaces
Grind long, slender shafts or bars
All of these
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
(4π/6)³ × (r/l)⁶
(4π/6) × (r/l)²
(4π/6)² × (r/l)³
(4π/6)² × (r/l)⁴
Conical locator
Cylindrical locator
Diamond pin locator
Vee locator