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Workshop Technology

Workshop Technology
In die casting, machining allowance is

Large
Very large
Not provided
Small

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Workshop Technology
The oxyacetylene gas used in gas welding produce a flame temperature of

2100°C
3200°C
2400°C
1800°C

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

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

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Workshop Technology
The parts of circular cross-section which are symmetrical about the axis of rotation are made by

Hot drawing
Hot forging
Hot extrusion
Hot spinning

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Workshop Technology
the most preferred process for casting gas turbine blades is

Investment moulding
Shell moulding
Sand casting
Die casting

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Workshop Technology
The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

Punching
Piercing
Blanking
Shearing

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