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Workshop Technology

Workshop Technology
Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?

Extrusion and rolling
Drawing
Rolling
Extrusion

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Workshop Technology
During drawing operation, the states of stress in cup would include

Tensile stress in the wall
Compressive stress in the flange
Both (A) and (B)
None of these

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

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

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Workshop Technology
For cutting brass, the hacksaw blade should have ________ teeth per 25 mm.

24
40
14
32

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Workshop Technology
When the dimension is expressed as 20­ -0.025 ⁺⁰∙⁰³⁵, then the basic size is

19.975 mm
20.035 mm
20 mm
20.025 mm

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Workshop Technology
In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.

None of these
Equal to
Smaller than
Larger than

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