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
D. All of the above
Drill a hole
Finish the drilled hole
Correct the hole
Enlarge the existing hole
1 in 10
1 in 15
1 in 20
1 in 30
Low carbon steel
Titanium
Copper
Tin
High carbon steel tools
High speed steel tools
Cemented carbide tools
All of these
Increase in moisture content beyond 6 percent
Increase in permeability
Decrease in permeability
Increase in both moisture content and permeability
Increases
Decreases
Does not effect
None of these
Finishing a drilled hole
Producing a large hole without drilling
Truing a hole for alignment
Enlarging a drilled hole
Continuous chips
Discontinuous chips
Continuous chips with built up edge
Either (A) or (C)
Friction zone
Work-tool contact zone
Shear zone
None of these
5 to 15 m/min
15 to 60 m/min
60 to 90 m/min
90 to 120 m/min
Side cutting edge angle
Tool nose radius
Rake angle
End cutting edge angle
Brass
Copper
Copper tungsten alloy
All of these
Four jaw independent chuck
Collect chuck
Three jaw universal chuck
Magnetic chuck
Up milling
Down milling
Forming
Broaching
Forehand welding
Flux cored ARC welding
Electro slag welding
Pulsed spray welding
Reactor
Kerf
Inductor
Cone
Water
Soluble oil
Dry
Heavy oils
0.1 to 0.2
0.20 to 0.25
0.25 to 0.40
0.40 to 0.55
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
For holding and guiding the tool in drilling, reaming or tapping operations
For holding the work in milling, grinding, planing or turning operations
To check the accuracy of workpiece
None of the above
Taper tap
Bottoming tap
Second tap
None of these
Increasing the cutting speed
Decreasing the cutting speed
Increasing the depth of cut
Increasing the feed rate
Increases tool life
Decreases tool life
Produces chipping and decreases tool life
Results in excessive stress concentration and greater heat generation
Four jaw independent chuck
Three jaw universal chuck
Magnetic chuck
Drill chuck
Knurling
Rough turning
Boring
Thread cutting
Single start
Double start
Multi-start
Any one of these
Forward stroke
Return stroke
Both the forward and return strokes
Neither the forward nor the return stroke
Equal to
Twice
Thrice
One-half
One-half
One-fourth
Double
Four times
Regulating wheel diameter
Speed of the regulating wheel
Angle between the axes of grinding and regulating wheels
All of the above