1. . An alloy is a
(A) Pure metal
(B) Mixture of metals in any proportion
(C) Mixture of metals in fixed proportion
(D) Mixture of two non metals
2. . Bronze is an alloy of
(A) Copper and Nickel
(B) Copper and iron
(C) Copper and Tin
(D) Copper and Aluminum
3. . Brass is an alloy of
(A) Copper and tin
(B) Copper and nickel
(C) Copper and Aluminium
(D) Copper and zinc
4. . Which of the following is not an alloy?
(A) Steel
(B) Copper
(C) Brass
(D) Bronze
5. . The atomic number of nickel is __________
(A) 5
(B) 40
(C) 28
(D) 13
6. . The Young’s modulus of nickel is __________
(A) 69 GPa
(B) 120 GPa
(C) 200 GPa
(D) 159 GPa
7. . Nickel is a __________ material.
(A) Soft
(B) Non-ductile
(C) Non-metallic
(D) Ductile
8. . The melting point of nickel is __________
(A) 660°C
(B) 1445°C
(C) 1668°C
(D) 1300°C
9. . Inconel is an alloy that contains nickel and ___________
(A) Iron
(B) Steel
(C) Zinc
(D) Chromium