State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · வினா 95

Which of the following are the constituents of brass?

  1. Iron and zinc
  2. Copper and nickel
  3. Iron and copper
  4. Zinc and copper
  5. None of the above / More than one of the above
விடையைக் காட்டு & விளக்கம்

விடை: (D) Zinc and copper

விளக்கம்

Brass = copper + zinc; bronze = copper + tin.

  • (A) தவறு

    Wrong: not brass.

  • (B) தவறு

    Wrong: that is cupronickel.

  • (C) தவறு

    Wrong: not brass.

  • (D) சரி

    Correct: brass is an alloy of copper and zinc.

  • (E) தவறு

    Wrong: only one of the options A–D is correct.