ISRO Technician-B Fitter Question Paper - 2016 (Set - 4) with Answer Key

ISRO Technician-B Fitter Question Paper - 2016 (Set - 4) with Answer Key

16) The process of producing a flat seat for a bolt head at the opening of a drilled hole

Answer is:

Spot facing

Explanation:

The process of producing a flat seat for a bolt head at the opening of a drilled hole is called as Spot Facing.

The process of producing a flat seat for a bolt head at the opening of a drilled hole

17) The combined operation of drilling and counter sinking with one tool is known as

Answer is:

Centre drilling

The combined operation of drilling and counter sinking with one tool is known as

18) An example of a natural abrasive is

Answer is:

Corundum

19) Gas welding nozzles are made of

Answer is:

Copper

20) The melting point of mild steel is

Answer is:

1500 degree centigrade

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