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Workshop Technology

Workshop Technology
The shrinkage allowance for cast iron pattern is

16 mm/m
20 mm/m
10 mm/m
26 mm/m

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

Less
None of the listed here
Same
More

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Workshop Technology
Green sand is a mixture of

30% sand and 70% clay
90% sand and 10% clay
50% sand and 50% clay
70% sand and 30% clay

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Workshop Technology
Thermit welding is often used in

Joining rails, truck frames and locomotive frames etc.
Replacing broken gear teeth
All of these
Repairing broken shears

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Workshop Technology
Carburising flame is used to weld

Hard surfacing materials such as stellite
Brass and bronze
All of these
Steel, cast iron, copper, aluminium etc

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Workshop Technology
Loam sand is a mixture of

30% sand and 70% clay
50% sand and 50% clay
70% sand and 30% clay
90% sand and 10% clay

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