ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

21) The type of electrodes that are most prone to the danger of moisture pick up is

Answer is:

Rutile coated

22) The selection of nozzle for pipe welding depends on

Answer is:

Pipe wall thickness

23) Which type of coated electrodes are generally used for general purpose welding and training purpose in ITI's?

Answer is:

Rutile

24) The property of cast iron that makes it difficult to be welded is

Answer is:

Its hardness and brittleness

The property of cast iron that makes it difficult to be welded is

25) Soldering iron is mainly used to

Answer is:

Melt the solder

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