141. Which of the following parameters govern the value of shear angle in continuous chip formation?
True feed
Chip thickness
Rake angle of the cutting tool
all of these
✅ The correct answer is option D.
Production Engineering MCQs
142. The angle between the face of the tool and a line tangent to the machined surface at the cutting point is called cutting angle.
Correct
Incorrect
✅ The correct answer is option A.
143. Which of the following statement is correct regarding grinding of high carbon steel?
Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
Aluminium oxide wheels are employed.
The grinding wheel has to be of open structure.
all of the above
✅ The correct answer is option D.
144. For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
5 m/min
10 m/min
15 m/min
30 m/min
✅ The correct answer is option D.
145. The hardness of a grinding wheel is specified by
Brinell hardness number
Rockwel! hardness number
Vickers pyramid number
letter of alphabet
✅ The correct answer is option D.
146. 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
✅ The correct answer is option B.
147. 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 correct answer is option A.
148. For fast removal of materials during grinding, a __________ grinding wheel is used.
coarse grained
fine grained
medium grained
✅ The correct answer is option A.
149. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called
face
fillet
gash
land
✅ The correct answer is option C.
150. In a shaper
tool is stationary and work reciprocates
work is stationary and tool reciprocates
tool moves over stationary work
tool moves over recipr
✅ The correct answer is option B.