Workshop Technology
Loam 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
In a compound die

Two or more operations are performed simultaneously at the single stroke of the ram
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
Only one operation is performed at each stroke of the ram

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Workshop Technology
Piercing is an operation of cutting

A flat sheet to the desired shape
A cylindrical hole in a sheet of metal by the punch and the die
A number of holes evenly spaced in a regular pattern on a sheet of metal
A hole (other than cylindrical) in a sheet of metal by the punch and the die

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