Surface grinding is done to produce
A. tapered surface
B. flat surface
C. internal cylindrical holes
D. all of the above
Answer B
In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
A. depth of cut
B. cutting speed
C. feed
D. tool rake angle
A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is
A. 0.2 mm
B. 10 mm
C. 20 mm
D. 100 mm
Answer C
The rake angle of a single point cutting tool corresponds to __________ of a twist drill.
A. lip clearance angle
B. helix angle
C. point angle
D. chisel edge angle
In ultra-sonic machining, tool is made of
A. tungsten carbide
B. brass or copper
C. diamond
D. stainless steel
