Manufacturing And Production Technology
In a shaper, the length of stroke is increased by

Decreasing the centre distance of bull gear and crank pin
Increasing the centre distance of bull gear and crank pin
Increasing the length of the arm
Decreasing the length of the slot in the slotted lever

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Manufacturing And Production Technology
The effect of setting a boring tool above center height leads to

Decrease in both effective rake angle and effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Increase in both effective rake angle and effective clearance angle
Increase in the effective rake angle and a decrease in the effective clearance angle

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