Its end tapered for about three or four threads
Its end tapered for about eight or ten threads
Full threads for the whole of its length
None of the above
C. Full threads for the whole of its length
0
2.07
20.7
41.4
Cast iron
Mild steel
Brass
Aluminium
Independent of index change gear ratio
Dependent on speed change gear ratio
Interrelated to index change gear ratio
Independent of speed and index change gear ratio
Low cutting speed and large rake angle
Low cutting speed and small rake angle
High cutting speed and large rake angle
High cutting speed and small rake angle
Same
Low
High
None of these
Toughness
Ductility
Elasticity
Work hardening
Wheel is too hard or wheel revolves at a very high speed
Wheel is too soft or wheel revolves at a very slow speed
Wheel is too hard and wheel revolves at very slow speed
Wheel is too soft and wheel revolves at a very high speed
Bevelling the extreme end of a workpiece
Embossing a diamond shaped pattern on the surface of a workpiece
Reducing the diameter of a workpiece over a very narrow surface
Enlarging the end of a hole cylindrically
Increase in the effective rake angle and a decrease in the effective clearance angle
Increase in both effective rake angle and effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Decrease in both effective rake angle and effective clearance angle
Lip clearance angle
Helix angle
Point angle
Chisel edge angle
Of maximum diameter 15 mm
In 15 mm thick plates
Having cross-sectional area of 15 mm²
None of these
Gas metal arc welding
Submerged arc welding
Gas tungsten arc welding
Flux coated arc welding
High temperature involved
Frequent wheel clogging
Rapid wheel wear
Low work piece stiffness
Against the rotating cutter
At angle of 60° to the cutter
In the direction of the cutter
At the right angle to the cutter
Porosity
Undercut
Under fill
Crack
Slush casting
Squeeze casting
Centrifugal casting
Investment casting
Grinding
Lapping
Honing
Buffing
Brittle metals
Ductile metals
Hard metals
Soft metals
Increase in coefficient of friction
Decrease in coefficient of friction
Decrease in roll radius
Decrease in roll velocity
Hot machining
Ultrasonic machining
ECM process
Chemical milling
Equal to 30°
Less than 30°
More than 30°
None of these
Depth of cut
Cutting speed
Feed
All of these
Zero helix angle is used
Low helix angle is used
High helix angle is used
Any helix angle can be used
Adhesion of metals
Oxidation of metals
Diffusion of metals
All of these
Material of drill
Type of material to be drilled
Quality of surface finish desired
All of these
High speed steel
Carbon steel
Wrought iron
All of these
At its recrystallisation temperature
Above its recrystallisation temperature
Below its recrystallisation temperature
At two thirds of the melting temperature of the metal
Friction zone
Work-tool contact zone
Shear zone
None of these
Tungsten
Chromium
Silicon
Cobalt
Reactor
Kerf
Inductor
Cone