121. When the tool moves parallel to the lathe axis, the movement is termed as
cross feed
angular feed
longitudinal feed
any one of these
✅ The correct answer is option C.
Production Engineering MCQs
122. Negative rakes are used for
carbide tools
heavy loads
harder materials
all of these
✅ The correct answer is option D.
123. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
10 m/min
15 m/min
22 m/min
30 m/min
✅ The correct answer is option C.
124. The cutting speed for drilling copper with high speed steel drills varies from
10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
✅ The correct answer is option B.
125. In hot machining, solid carbide tools are preferred over high speed steel tools.
TRUE
FALSE
✅ The correct answer is option A.
126. The floating position of the holding fixture in a rotary transfer device is used to
improve the accuracy of location
reduce the tendency to over-index
improve upon the acceleration and deceleration characteristics
reduce the cycle time
✅ The correct answer is option D.
127. With the same tool life, the maximum material per minute is removed by
increasing the cutting speed
decreasing the cutting speed
increasing the depth of cut
increasing the feed ra
✅ The correct answer is option C.
128. The relation between tool life (T) and cutting speed (V) is VTn = Constant. In this relation, the value of n depends upon
work material
tool material
working conditions
type of chip produced
✅ The correct answer is option B.
129. The tap used to cut threads in a blind hole is
taper tap
second tap
bottoming tap
any one of these
✅ The correct answer is option C.
130. The cutting speed for counter-boring should be __________ that of drilling operation.
equal to
less than
greater than
✅ The correct answer is option C.