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State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · Question 98

Which of the following is also called 'white metal'?

  1. Rhodium
  2. Platinum
  3. Palladium
  4. Nickel
  5. None of the above / More than one of the above
Show answer & explanation

Answer: (E) None of the above / More than one of the above

Explanation

'White metal' (Babbitt metal) is a group of tin/lead-based alloys used in bearings.

  • (A) Incorrect

    Wrong: not called white metal.

  • (B) Incorrect

    Wrong: called 'white gold' colloquially, not 'white metal'.

  • (C) Incorrect

    Wrong: not called white metal.

  • (D) Incorrect

    Wrong: not called white metal.

  • (E) Correct

    Correct: 'White metal' refers to tin- or lead-based bearing alloys, none of the listed metals.