Related Questions

In metal machining, the work-tool contact zone is a zone where heat is generated due to
A Plastic deformation of metal
B Burnishing friction
C Friction between the moving chip and the tool face
D None of the above
In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
A Friction zone
B Work-tool contact zone
C Shear zone
D None of these
The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as
A 10 mm
B 13 mm
C 16 mm
D 19 mm
For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of
A 500
B 1000
C 1750
D 2750
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
A 5 m/min
B 10 m/ min
C 15 m/min
D 30 m/min
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
A 10 m/min
B 15 m/min
C 22 m/min
D 30 m/min
The tool material, for faster machining, should have
A wear resistance
B red hardness
C toughness
D all of the mentioned
When the cutting edge of the tool is dull, then during machining
A Continuous chips are formed
B Discontinuous chips are formed
C Continuous chips with built-up edge are formed
D No chips are formed
In ultrasonic machining, tool is made of
A Tungsten carbide
B Brass or copper
C Diamond
D Stainless steel
In hot machining, tool is made of
A Tungsten carbide
B Brass or copper
C Diamond
D Stainless steel

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