In oblique cutting system, the cutting edge of the tool
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
Correct Answer :
C. May not clear the width of the workpiece
Related Questions
In centreless grinding, the surface speed of regulating wheel is
5 to 15 m/min
15 to 60 m/min
60 to 90 m/min
90 to 120 m/min
Crater wear is predominant in
Carbon tool steels
Tungsten carbide tools
High speed steel tools
Ceramic tools
In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness ratio is unaffected with the changed cutting conditions, the actual chip thickness will be
Doubled
Halved
Quadrupled
Unchanged
In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called
Gang milling
Straddle milling
String milling
Side milling
Discontinuous chips are formed during machining of
Brittle metals
Ductile metals
Hard metals
Soft metals
What is the type of welding defect caused due to poor deposition of weld rod is called?
Porosity
Undercut
Under fill
Crack
The average cutting speed for turning mild steel with a high speed steel tool is
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
A taper tap has
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
The swing diameter over the bed is ________ the height of the centre measured from the bed of the lathe.
Equal to
Twice
Thrice
One-half
While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is
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
If the cutting speed is increased, then the built-up-edge
Becomes longer
May or may not form
Becomes smaller and finally does not form at all
Has nothing to do with speed
Relief angles on high speed steel tools usually vary from
0° to 3°
3° to 10°
10° to 20°
20° to 30°
The carbide tools operating at very low cutting speeds (below 30 m/min)
Reduces tool life
Increases tool life
Have no effect on tool life
Spoils the work piece
The angle between the shear plane and __________ is called shear angle.
Work surface
Tool face
Machine surface
None of these
In metal cutting operations, the shear angle is the angle made by the shear plane with the
Direction of the tool axis
Direction of tool travel
Perpendicular to the direction of the tool axis
Central plane of the workpiece
Larger end cutting edge angle _________ tool life.
Increases
Decreases
Does not effect
None of these
The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called
Truing
Dressing
Facing
Clearing
In reaming process
Metal removal rate is high
High surface finish is obtained
High form accuracy is obtained
High dimensional accuracy is obtained
The cutting speed for counter-boring should be _________ that of drilling operation.
Equal to
Less than
Greater than
None of these
What is the welding defect caused due to improper control and poor removal of slog between passes called?
Mismatch
Under fill
Crack
Porosity
Negative rakes are used for
Carbide tools
Heavy loads
Harder materials
All of these
In which of the following milling machine, the table can be tilted in a vertical plane by providing a swivel arrangement at the knee?
Universal milling machine
Plain milling machine
Universal milling machine
Hand milling machine
The mechanism of material removal in EDM process is
Melting and Evaporation
Melting and Corrosion
Erosion and Cavitations
Cavitations and Evaporation
The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called
Helix or rake angle
Point angle
Chisel edge angle
Lip clearance angle
An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as
Counter-boring
Grooving
Knurling
Facing
An expendable pattern is used in
Slush casting
Squeeze casting
Centrifugal casting
Investment casting
In which of the following machine, the work rotates and the tool is stationary?
Vertical boring machine
Horizontal boring machine
Precision boring machine
Jig boring machine
The strength of a brazed joint
Decreases with increase in gap between the two joining surfaces
Increases with increase in gap between the two joining surfaces
Decreases up to certain gap between the two joining surfaces beyond which it increases
Increases up to certain gap between the two joining surfaces beyond which it decreases
What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?
Argon H₂
Argon CO₂
Argon Helium
Helium
Side relief angle of a single point tool is the angle
By which the face of the tool is inclined towards back
By which the face of the tool is inclined sideways
Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base