Top 150+ Solved Basics of Civil Engineering MCQ Questions Answer

From 91 to 101 of 101

Q. By calcining and smelting iron ores, a crude and impure form of iron obtained is knownas

a. cast iron

b. wrought iron

c. steel

d. pig iron

  • d. pig iron

Q. The colour of cast iron is

a. grey

b. white

c. both grey and white

d. none of the above

  • c. both grey and white

Q. The compressive and tensile strength of cast iron are

a. 700 N/m2 and 150 N/mm2

b. 600 N/mm2 and 400 N/mm2

c. 415 N/mm2 and 415 N/mm2

d. 400 N/mm2 and 600 N/mm2

  • a. 700 N/m2 and 150 N/mm2

Q. For making spiral staircases, ideal material is

a. pig iron

b. cast iron

c. wrought iron

d. steel

  • b. cast iron

Q. Purest form of iron is

a. pig iron

b. cast iron

c. wrought iron

d. steel

  • c. wrought iron

Q. Carbon content in wrought iron is

a. 0.15%

b. 0.25 to 1.5%

c. 2 to 4%

d. more than 4%

  • a. 0.15%

Q. The ratio of tensile strength to compressive strength of steel is

a. less than 1

b. equal to 1

c. more than 1

d. nothing can be said definitely

  • b. equal to 1

Q. Ribs are made on steel wires to increase

a. strength is compression

b. strength is tension

c. bond strength

d. fatigue quality

  • c. bond strength

Q. The property of metal enabling it to be drawn into thin weir is known as

a. malleability

b. ductility

c. toughness

d. plasticity

  • b. ductility

Q. Non-ferrous Materials

a. Market form of copper is/are

b. ingots

c. sheets

d. tubes

  • d. tubes

Q. The ore from which aluminium is extracted economically is

a. kaolin

b. kryolite

c. corundum

d. bauxite

  • d. bauxite
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