AWS CWI Schedule Chennai 2016

Q:- What is the purpose of a rectifier :

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(a) To adjust the voltage.

(b) To adjust the amperage.

(c) To covert ac to dc.

(d) To reduce the chance of arc strike.

Q:- welding process using equipment with a flat characteristic :

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(a) Will require a permanent or temporary backing to be pre placed on the Root side of the welds.

(b) Has the advantage of being able to use any type or size of electrode.

(c) Is likely to be using an electrode less than 2 mm dia.

(d) Is likely to be using an electrode more than 2 mm dia.