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Workshop Technology

Workshop Technology
Which of the following material can be used for making patterns?

All of these
Lead
Wax
Aluminium

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Workshop Technology
For welding plates of thickness more than 12.5 mm, its edges

Should have a double-V or U-groove on one side
Do not require bevelling
Should have a double-V or U-groove on both sides
Should be bevelled to a single-V or U-groove

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Workshop Technology
The metal patterns as compared to wooden patterns require less

Distortion allowance
Draft allowance
Machining allowance
Shrinkage allowance

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Workshop Technology
The recrystallisation temperature of steel is

None of these
800°C
600°C
400°C

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Workshop Technology
Tandem drawing of wires and tubes is necessary because

Surface finish improves after every drawing stage
Annealing is needed between stages
Accuracy in dimensions is not possible otherwise
It is not possible to reduce at one stage

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

Sand wash
Scab
Swell
Shift

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