METALS MCQ PART-2 FOR SEM 1

1) An increase of carbon content in steel results in

Increase in malleability

Increase in strength

Increase in ductility

Increase in hardness

2) The metal bars used in building construction are made of ........

Steel

Captionless Image

Pig iron

Wrought iron

Cast iron

3) Which one of the following is the capacity of a metal to withstand destruction under the action of external loads?

Ductility

Stiffness

Toughness

Strength

4) Which one of the following is the resistance of a metal to elastic deformation?

Strength

Stiffness

Toughness

Ductility

5) Which one among the following properties of a metal is the power of return to its original shape after deformation when the load is removed?

Stiffness

Elasticity

Ductility

Malleability

6) Which one of the following properties of a metal has the ability to change its shape without destruction under the influence of external forces?

Stiffness

Elasticity

Plasticity 

Malleability

7) Which one among the following properties of a metal is the property by which resistance is offered to fracture by repeated bending or twisting?

Brittleness

Malleability

Stiffness

Toughness

8) Which one of the following properties is most essential for the metals in the process of casting, welding, brazing, and soldering?

Tenacity

Plasticity

Fusibility

Malleability

9) Metals possess physical and mechanical properties. Which one of the following is a physical property of metals?

Ductility

Malleability

Tenacity

Fusibility

10) Rust is formed from iron and which another element?

Hydrogen

Sulphur

Oxygen 

Nitrogen

11) Which of these metals is liquid at room temperature?

Mercury

Beryllium 

Osmium

Lithium

12) In its simplest form, bronze is an alloy of which metals?

Copper, zinc, and nickel

Copper and zinc

Copper, tin, and lead

Copper and tin

13) The ability of a metal to be drawn into wire is a measure of its

Ductility

Toughness

Malleability

Hardness

14) Most metals have

Small atomic radii

Low electronegativities

High electronegativities

High ionization energies

15) Metals which burn on exposure to air are best stored

Under alcohol

Under vinegar

Under kerosene

Underwater

16) Galvanized metals have been covered with a thin sheet of

Copper

Chromium 

Zinc

Tin

17) Which metal is most abundant in Earth’s crust?

Iron

Aluminum

Sodium

Copper

18) The chief chemical property of aluminum is that it is

Strong

Tough

Brittle

Soft

19) Gunmetal is an alloy of copper

tin and zinc

zinc and nickel

lead and zinc

lead and nickel

20) Generally, bearing bushes are made of

White metal

Brass

Copper

Gunmetal.