161. The operation of machining several surfaces of a workpiece simultaneously is called
profile milling
gang milling
saw milling
helical milling
✅ The correct answer is option B.
Production Engineering MCQs
162. 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 th
✅ The correct answer is option C.
163. The hole drilled for tapping should be smaller than the tap size by twice the depth of thread.
Agree
Disagree
✅ The correct answer is option A.
164. Crater wear is mainly due to the phenomenon known as
adhesion of metals
oxidation of metals
diffusion of metals
all of these
✅ The correct answer is option C.
165. Crack in grinding wheel is developed due to
high temperature developed at the contact of the wheel face and work
grinding hard work
low speed of wheel
high speed of wheel
✅ The correct answer is option D.
166. To grind brittle materials, a coarse grained grinding wheel is used.
Agree
Disagree
✅ The correct answer is option B.
167. The parameter which completely defines the chip formation in a metal cutting process is
shear angle
chip-tool contact length
both (a) and (b)
none of these
✅ The correct answer is option C.
168. The hard grade grinding wheels are denoted by the letters
A to H
I to P
Q to Z
A to P
✅ The correct answer is option C.
169. A numerical method of identification of tool is known as tool signature.
Correct
Incorrect
✅ The correct answer is option A.
170. The depth of cut in drilling is __________ the drill diameter.
equal to
one-fourth
one-half
double
✅ The correct answer is option C.