Manufacturing And Production Technology
Which among the NC operations given below are continuous path operations?Arc Welding (AW), Drilling (D), Laser Cutting of Sheet Metal (LC), Milling (M), Punching in Sheet Metal (P), Spot Welding (SW)

D, LC, P and SW
D, LC, and SW
AW, D, LC and M
AW, LC and M

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Manufacturing And Production Technology
A jig is defined as a device which

All of these
Is used to check the accuracy of workpiece
Holds and locates a workpiece during an inspection or for a manufacturing operation
Holds and locates a workpiece and guides and controls one or more cutting tools

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

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
Decrease in both effective rake angle and effective clearance angle

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