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Workshop Technology

Workshop Technology
A casting defect which results in general enlargement of a casting is known as

Shift
Swell
Sand wash
Scab

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Workshop Technology
In welding magnesium with TIG arc welding, direct current with ________ is used.

Reversed polarity
Both (A) and (B)
None of these
Straight polarity

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Workshop Technology
Cores are used to

Improve mould surface
Form internal cavities in the casting
Form a part of a green sand mould
All of these

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Workshop Technology
A ring gauge is used to

All of these
Check the diameter of shafts or studs
Test the accuracy of holes
Check the clearance between two mating surfaces

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Workshop Technology
In sheet metal work, he cutting force on the tool can be reduced by

Providing shear on tool
Increasing the hardness of die
Grinding the cutting edges sharp
Increasing the hardness of tool

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Workshop Technology
A basic shaft is one whose

Lower and upper deviations are zero
Lower deviation is zero
None of the listed here
Upper deviation is zero

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