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Workshop Technology

Workshop Technology
Which one of the following material will require the largest size of riser for the same size of casting?

Copper
Aluminium
Steel
Cast iron

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Workshop Technology
When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by

Rubbing on wood
Washing it with water
Washing it with dilute acid
Using file card

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Workshop Technology
Structural sections such as rails, angles, I-beams are made by

Hot extrusion
Hot piercing
Hot drawing
Hot rolling

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Workshop Technology
The machining allowance provided on patterns depends upon

Method of casting used
Size and shape of casting
All of these
Type of casting metal

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Workshop Technology
A basic shaft is one whose

Lower deviation is zero
None of the listed here
Upper deviation is zero
Lower and upper deviations are zero

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Workshop Technology
The temperature of the inner luminous cone of neutral flame is about

1000°C
2100°C
1250°C
3200°C

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