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Workshop Technology

Workshop Technology
The surface to be left unmachined is marked on the pattern by

Red colour
Yellow colour
Blue colour
Black colour

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Workshop Technology
A hacksaw blade is specified by its

Width
Material
Number of teeth
Length

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

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

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Workshop Technology
In a ___, the molten metal is poured and allowed to solidify while the mould is revolving.

Die casting method
Slush casting method
Centrifugal casting method
Permanent mould casting method

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Workshop Technology
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Anywhere between 0.1 to 1 percent
Less than 0.3 percent
Less than 0.1 percent
More than 0.3 percent

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Workshop Technology
A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

Sand wash
Shift
Swell
Scab

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