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Manufacturing And Production Technology

Manufacturing And Production Technology
In drilling aluminium, a drill with

High helix angle is used
Low helix angle is used
Any helix angle can be used
Zero helix angle is used

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Manufacturing And Production Technology
A grinding wheel is said to be of _________ if it holds the abrasive grains more securely.

Soft grade
None of the listed here
Hard grade
Medium grade

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Manufacturing And Production Technology
If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten electrode metal fills up the arc gap is known as

ARC
ARC length
Short ARC
ARC blow

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Manufacturing And Production Technology
If the helix angle of the drill is made ________ 30°, then the torque required to drive the drill at a given feed will be more.

Equal to
More than
None of these
Less than

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Manufacturing And Production Technology
The hardness of a grinding wheel is determined by the

Ability of the grinding wheel to penetrate the work piece
Hardness of the bond
Hardness of abrasive grains
Ability of the bond to retain abrasives

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Manufacturing And Production Technology
What is the type of welding defect caused due to poor deposition of weld rod is called?

Under fill
Porosity
Undercut
Crack

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