Metals Objective Questions and Answers - ObjectiveBooks

Metals Objective Questions and Answers

Practice Test: Question Set - 03


1. Metals process physical and mechanical properties. Which one of the following is a physical property of metals?
    (A) Fusibility
    (B) Tenacity
    (C) Ductility
    (D) Malleability

2. Monel metal contains
    (A) Nickel and aluminium
    (B) Nickel and copper
    (C) Nickel and chromium
    (D) Nickel and zinc

3. Metals which burn on exposure to air are best stored
    (A) Under water
    (B) Under alcohol
    (C) Under vinegar
    (D) Under kerosene

4. Brass is an alloy of
    (A) Copper and tin
    (B) Lead and tin
    (C) Copper and zinc
    (D) Copper and silver

5. Which among the following is the lightest metal?
    (A) Lead
    (B) Tin
    (C) Aluminium
    (D) Copper

6. Bronze is an alloy of
    (A) Copper and tin
    (B) Lead and tin
    (C) Copper and zinc
    (D) Copper and lead

7. Which one of the following metals is corrosion-resistant?
    (A) Aluminium
    (B) Tin
    (C) Copper
    (D) Mild steel

8. Which one of the following is the capacity of a metal to withstand destruction under the action of external loads?
    (A) Stiffness
    (B) Strength
    (C) Toughness
    (D) Ductility

9. Desirable hardness in a file is generally
    (A) 30 HRC
    (B) 45 HRC
    (C) 60 HRC
    (D) 80 HRC

10. Which one among the following properties of a metal is the property by which resistance is offered to fracture by repeated bending or twisting?
    (A) Brittleness
    (B) Stiffness
    (C) Toughness
    (D) Malleability

11. Rust is formed from iron and which other element?
    (A) Hydrogen
    (B) Nitrogen
    (C) Oxygen
    (D) Sulphur

12. In its simplest form, bronze is an alloy of which metals?
    (A) Copper and tin
    (B) Copper and zinc
    (C) Copper, zinc and nickel
    (D) Copper, tin and lead

13. Which one among the following properties of metal is the power of return to its original shape after deformation when the load is removed?
    (A) Ductility
    (B) Malleability
    (C) Stiffness
    (D) Elasticity

14. The alloys 'Duralumin' and 'Hindalium' contains 95% of
    (A) Copper
    (B) Zinc
    (C) Lead
    (D) Aluminium

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