2. Questions Bank
  3. 8th Class
  4. Science
  5. Materials : Metals and Non-metals

8th Class Science Materials : Metals and Non-metals Question Bank Metals and Non Metals Summative Objective Problems

  • question_answer
    (P) Duralumin - (Al = 95%, Cu = 4%, Mn = 0.5%, Mg=0.5%) (Q) Solder- (Sn = 50% to 60% Pb = 50% to 40%) (R) Brass- (Cu = 60% to 80% Sn = 0% to 40%)

    A)
    (P)         (Q)        (R)
    False          True           False

    B)
    (P)         (Q)        (R)
    True         False         True

    C)
    (P)         (Q)        (R)
    False         True         False

    D)
    (P)         (Q)        (R)
    True         False         False

    Correct Answer: B

    Solution :

      Not Available


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