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Workshop Technology

Workshop Technology
A casting defect which occurs due to improper venting of sand is known as

Shift
Cold shuts
Swell
Blow holes

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Workshop Technology
Loam sand is a mixture of

70% sand and 30% clay
50% sand and 50% clay
30% sand and 70% clay
90% sand and 10% clay

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

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

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Workshop Technology
The operation of bending a sheet of metal along a curved axis, is known as

Notching
Plunging
Slitting
Forming

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Workshop Technology
The oxygen cylinder is usually painted with

Black colour
White colour
Yellow colour
Maroon colour

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Workshop Technology
In TIG arc welding, the welding zone is shielded by an atmosphere of

Helium gas
Argon gas
Either (A) or (B)
None of these

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