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Workshop Technology

Workshop Technology
The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.

Less than
None of these
Same as
More than

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Workshop Technology
The electron beam welding can be carried out in

A shielded gas environment
Open air
A pressurized inert gas chamber
Vacuum

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Workshop Technology
The adhesiveness is the property of sand due to which

It clings to the sides of a moulding box
None of these
It evolves a great amount of steam and other gases
The sand grains stick together

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Workshop Technology
The temperature produced by oxy-hydrogen flame is about

1800°C
2100°C
3200°C
2400°C

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Workshop Technology
The property of sand due to which it evolves a great amount of steam and other gases is called

Cohesiveness
Collapsibility
Permeability
Adhesiveness

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Workshop Technology
In order to deliver molten metal from pouring basin to gate, a ________ is used.

Core
Riser
Sprue
None of these

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