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Workshop Technology

Workshop Technology
In average work, the tolerance produced by investment casting method is

±0.05 mm
+0.2 mm
+1 mm
+05 mm

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

Hot forging
Hot extrusion
Hot spinning
Hot drawing

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Workshop Technology
Cast iron and steel pipes are produced by

Die casting
True centrifugal casting
Slush casting
Investment casting

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Workshop Technology
The material which can be best cut with oxygen cutting process is

Mild steel
Aluminium
Brass
Copper

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Workshop Technology
In sheet metal blanking, shear is provided on punches and dies so that

Cut blanks is straight
Press load is reduced
Good cut edge is obtained
Warping of sheet is minimized

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

20 mm
19.975 mm
20.035 mm
20.025 mm

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