.The welding set
up is said to have reversed polarity when the work is connected to the
negative terminal and the electrode holder to the positive terminal.

 
In a __________ , two or more operations are performed simultaneously at the single stroke of the ram.

 
Cold working requires much higher pressure that hot working.

 
The operation of bending a sheet of metal along a curved axis, is known as

A rip saw

Tandem drawing of wires and tubes is necessary because

In a __________ , both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

.The correct
sequence for preparing a billet for extrusion process is pickling,
alkaline cleaning, phosphate coating and lubricating with reactive soap.

 
In order to cut mild steel, the cutting angle of chisel should be

The operation of straightening a curved sheet metal, is known as