METALS MCQ 2
1) Increase of carbon content in steel results in
Increase in hardness
Increase in malleability
Increase in strength
Increase in ductility
Correct Answer (A)
3) Which one of the following is the capacity of a metal to withstand destruction under the action of external loads?
Strength
Ductility
Toughness
Stiffness
Correct Answer (A)
4) Which one of the following is the resistance of a metal to elastic deformation ?
Strength
Toughness
Stiffness
Ductility
Correct Answer (C)
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
Malleability
Ductility
Elasticity
Correct Answer (D)
6) Which one of the following properties of a metai has the ability to change its shape without destruction under the influence of external forces?
Elasticity
Malleability
Plasticity
Stiffness
Correct Answer (C)
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
Correct Answer (D)
8) Which one of the following properties is most essential for the metals in the process of casting, welding, brazing and soldering ?
Tenacity
Fusibility
Malleability
Plasticity
Correct Answer (B)
9) Metals possess physical and mechanical properties. Which one of the foliowing is a physical property of metals?
Fusibility
Malleability
Ductility
Tenacity
Correct Answer (A)
10) Rust is formed from iron and which other element?
Hydrogen
Oxygen
Nitrogen
Sulphur
Correct Answer (B)
11) Which of these metals is liquid at room temperature? *
5 points
Lithium
Osmium
Beryllium
Mercury
Correct Answer (B)
12) In its simplest form, bronze is an alloy of which metals?
Copper, tin and lead
Copper and tin
Copper and zinc
Copper, zinc and nickel
Correct Answer (B)
13) The ability of a metal to be drawn into wire is a measure of its
Ductility
Malleability
Hardness
Toughness
Correct Answer (A)
14) Most metals have
High ionization energies
Low electronegativities
High electronegativities
Small atomic radii
Correct Answer (B)
15) Metals which burn on exposure to air are best stored
Under vinegar
Under alcohol
Underwater
Under kerosene
Correct Answer (D)
16) Galvanized metals have been covered with a thin sheet of
Chromium
Zinc
Copper
Tin
Correct Answer (B)
17) Which metal is most abundant in Earth’s crust?
Aluminium
Iron
Copper
Sodium
Correct Answer (A)
18) The chief chemical property of aluminium is that it is
Soft
Brittle
Tough
Strong
Correct Answer (A)
19) Gun metal is an alloy of copper
lead and nickel
lead and zinc
tin and zinc
zinc and nickel
Correct Answer (C)
20) Generally, bearing bushes are made of
Brass
Gun metal
White metal
Copper
Correct Answer (B)
