ISRO Mechanical & Aerospace 2017 - Question 73

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Topic: Manufacturing

Process in which lowest tolerances in cast products of ferrous and non ferrous metals can be achieved is

  • A. Die casting
  • B. Shell casting
  • C. Investment casting
  • D. Sand casting

Answer: C. Investment casting

Explanation: Investment casting (also known as lost-wax casting) is capable of producing parts with very high dimensional accuracy and tight tolerances, superior to other casting methods.

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