ISRO Mechanical & Aerospace 2015 - Question 39

All ISRO Mechanical & Aerospace papers | ISRO Mechanical & Aerospace 2015

Topic: Material Science

German silver contains

  • A. 12.5% silver
  • B. 5% silver
  • C. 1% silver
  • D. None of the above

Answer: D. None of the above

Explanation: Despite its deceptive name, German silver contains no actual silver. It is a commercial alloy whose composition typically consists of Copper (50% to 61.6%), Zinc (19% to 17.2%), and Nickel (30% to 21.1%).

| | All questions of ISRO Mechanical & Aerospace 2015