Workshop Technology
In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.

Squeezing machine
Sand slinger
Stripper plate machine
Jolt machine

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Workshop Technology
Lancing is the operation of

Cutting a sheet of metal in a straight line along the length
Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
Removal of metal to the desired shape from the edge of a plate

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Workshop Technology
The welding set up is said to have straight polarity, when

Work is connected to the positive terminal and the electrode holder is earthed
Work is connected to the negative terminal and the electrode holder is earthed
Work is connected to the negative terminal and the electrode holder to the positive terminal
Work is connected to the positive terminal and the electrode holder to the negative terminal

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