10) Calculate the rpm for a high speed steel drill (p20 mm to cut mild steel if the cutting speed is 30 m/min
Answer is:
478
ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key
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Answer is:
Copper & Tin
Explanation:
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (such as aluminium, manganese, nickel or zinc) and sometimes non-metals or metalloids such as arsenic, phosphorus or silicon.
Answer is: