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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?

Steel
Aluminium
Copper
Cast iron

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Workshop Technology
The dowels are

Wooden nails
Wire nails
None of the listed here
Box nails

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Workshop Technology
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be

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

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Workshop Technology
In order to produce uniform packing of sand in the moulds, a _________ is used.

Stripper plate machine
Sand slinger
Squeezing machine
Jolt machine

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Workshop Technology
In electric resistance welding, voltage required for heating is

50 to 100 volts
11 to 20 volts
6 to 10 volts
1 to 5 volts

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Workshop Technology
Which of the following material can be used for making patterns?

Lead
Aluminium
Wax
All of these

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