Manufacturing And Production Technology
Tool life is measured by the

Time the tool is in contact with the job
All of the listed here
Volume of material removed between tool sharpenings
Number of pieces machined between tool sharpenings

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Manufacturing And Production Technology
The lip clearance angle is the angle formed by the

None of the listed here
Leading edge of the land with a plane having the axis of the drill
Flank and a plane at right angles to the drill axis
Chisel edge and the lip as viewed from the end of a drill

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

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

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