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SSC CGL 2020 PYQ — Question 36

SSC CGL - 9th March 2020 Shift 2 • General Awareness • Q36

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Constantan is an alloy of Copper and _______.

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Correct answer: D

Explanation

The correct answer is option 4 i.e. Nickel.

  • Constantan is a exclusive name for a copper-nickel alloy also known as Eureka, Advance, and Ferry.
  • It usually consists of 55% copper and 45% nickel.
  • Its main feature is the low thermal variation of its resistivity, which is constant over a wide range of temperatures.