ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

16) A billet of length 500mm, width 300mm and thickness 50mm is rolled keeping its width constant. What will be the thickness of the billet if length after rolling is 800mm?

Answer is:

31.25 mm

17) Purpose of gate in casting is

Answer is:

Deliver molten metal into the mould cavity

18) How much time will it take for an amount of Rs.450 to yield Rs.81 as interest at 4.5% per annum of simple interest?

Answer is:

4 years

19) The operation of cutting cylindrical scrap in a sheet metal is called

Answer is:

Piercing

20) The cutting edge of a chisel should be _____ before use

Answer is:

Hardened and tempered

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