The tool material, for faster machining, should have
A. wear resistance
B. red hardness
C. toughness
D. all of the above
Answer D
Dielectric is used in
A. electro-chemical machining
B. ultra-sonic machining
C. electro-discharge machining
D. laser machining
Answer C
In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
A. side relief angle
B. end relief angle
C. back rake angle
D. side rake angle
Answer B
The type of reamer used for reaming operation in a blind hole, is
A. straight fluted reamer
B. left hand spiral fluted reamer
C. right hand spiral fluted reamer
D. any one of the above
In centreless grinders, the maximum angular adjustment of the regulating wheel is
A. 5º
B. 10º
C. 15º
D. 20º
