High speed steel
Carbon steel
Stainless steel
Either (A) or (B)
D. Either (A) or (B)
Brittle metals
Ductile metals
Hard metals
Soft metals
Materials
Types of gears
Number of teeth
Width of gears
Zero helix angle is used
Low helix angle is used
High helix angle is used
Any helix angle can be used
Circular Interpolation − clockwise
Circular Interpolation − counter clockwise
Linear Interpolation
Rapid feed
(4π/6)³ × (r/l)⁶
(4π/6) × (r/l)²
(4π/6)² × (r/l)³
(4π/6)² × (r/l)⁴
Loose running fit
Close running fit
Transition fit
Interference fit
Rate of production is very high
High accuracy and high class of surface finish is possible
Roughing and finishing cuts are completed in one pass of the tool
All of the above
Coarse grained grinding wheel is used
Fine grained grinding wheel is used
Medium grained grinding wheel is used
Any one of these
7
8
9
10
Taper tap
Bottoming tap
Second tap
None of these
Ultrasonic welding
Forge welding
Electron beam welding
Friction welding
Increasing the cutting speed
Decreasing the cutting speed
Increasing the depth of cut
Increasing the feed rate
Induction motor
DC servo motor
Stepper motor
Linear servo motor
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
Cutting edge only
Front face only
Minimum at the beginning of the cut and maximum at the end of the cut
Maximum at the beginning of the cut and minimum at the end of the cut
Uniform throughout the cut
None 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
The workpiece is supported throughout its entire length as grinding takes place.
It is a continuous process and adopted for production work.
It requires no holding device for the work.
All of the above
Body centred cubic
Base centred cubic
Hexagonal closed packed
Body centred tetragonal
Increases
Decreases
Does not effect
None of these
Drill a hole
Finish the drilled hole
Correct the hole
Enlarge the existing hole
Coefficient of friction
Microstructure
Work hardening characteristics
All of these
Annealing
Cyaniding
Normalizing
Tempering
Hardness of the work and tool material at the operating temperature
Amount and distribution of hard constituents in the work material
Degree of strain hardening in the chip
All of these
Rake angle
Clearance angle
Lip angle
Point angle
Material of drill
Type of material to be drilled
Quality of surface finish desired
All of these
Plastic deformation of metal
Burnishing friction
Friction between the moving chip and the tool face
None of the above
Maximum clearance between shaft and hole
Minimum clearance between shaft and hole
Difference between maximum and minimum sizes of hole
Difference between maximum and minimum sizes of shaft
Equal to
One-fourth
One-half
Double
10 m/min
15 m/min
22 m/min
30 m/min
Water
Soluble oil
Dry
Heavy oils