Workshop Technology
A basic hole is one whose

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

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Workshop Technology
In a simple die

None of the listed here
Two or more cutting operations are performed at one station of the press in every stroke of the ram
Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
Two or more operations are performed simultaneously at the single stroke of the ram

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Workshop Technology
The purpose of a gate is to

Delivers molten metal from pouring basin to gate
Feed the molten metal to the casting in order to compensate for the shrinkage
Delivers molten metal into the mould cavity
Act as a reservoir for the molten metal

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