A. iron
B. carbon
C. manganese
D. sulphur
Related Mcqs:
- The constituent of cement which is responsible for all the undesirable properties of cement is____________?
A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. tetra calcium alumino ferrite - Which of the following stresses is used for identifying the quality of structural steel ?
A. ultimate stress
B. yield stress
C. proof stress
D. none of the above - The ultimate tensile strength of structural mild steel is about_________________?
A. 160N/mm2
B. 260N/mm2
C. 420 N/mm2
D. 520 N/mm2 - Three basic raw materials which are needed in large quantities for production of steel are_______________?
A. iron ore, coal and sulphur
B. iron ore, carbon and sulphur
C. iron ore, coal and lime stone
D. iron ore, carbon and lime stone - The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is______________?
A. less than 1
B. equal to 1
C. greater than 1
D. less than 1 in beams but greater than 1 in channels - Percentage of carbon content in mild steel is_______________?
A. less than 0.25
B. between 0.25 and 0.7
C. between 0.7 and 1.5
D. greater than 1.5 - The type of footing which is used to transmit heavy loads through steel columns is_______________?
A. raft foundation
B. grillage foundation
C. well foundation
D. isolated footing - Compared to mild steel, cast iron has (1) high compressive strength (2) high tensile strength (3) low compressive strength (4) low tensile strength The correct answer is_________________?
A. (1) and (2)
B. (2) and (3)
C. (3) and (4)
D. (1)and(4) - In which of the following directions, the strength of timber is maximum ?
A. parallel to grains
B. 45° to grains
C. perpendicular to grains
D. same in all directions - Which of the following cements contains maximum percentage of dicalcium silicate?
A. ordinary Portland cement
B. low heat cement
C. rapid hardening cement
D. sulphate resisting cement
