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Workshop Technology

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

Sprue
None of these
Core
Riser

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Workshop Technology
A basic hole is one whose

Upper deviation is zero
None of these
Lower deviation is zero
Lower and upper deviations are zero

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Workshop Technology
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.

Less
More
Same
None of these

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Workshop Technology
In welding copper alloys with TIG arc welding

Any one of the listed here
Direct current with straight polarity is used
Alternating current is used
Direct current with reversed polarity is used

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Workshop Technology
When more volume of acetylene and less volume of oxygen is supplied, then a ___ flame is obtained.

Carburising
Oxidizing
Neutral
None of the listed here

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Workshop Technology
A casting defect which occurs due to improper venting of sand is known as

Cold shuts
Blow holes
Swell
Shift

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