Materials and Construction-Data Intensity 1 Multiple Questions and Answers.




6.Pick out the wrong statement ?
A. Alloys are harder than their component elements
B. Presence of silicon in steel decreases its electrical resistance
C. Karbate is an acid resistant material of construction
D. Nichrome, a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C

7.Pick out the wrong statement?
A. Tin can be readily and very easily drawn into very fine wire
B. Tin can be severely cold worked without the necessity of annealing due to its low recrystallisation temperature
C. Tin exists in two allotropic forms
D. The predominant use of tin is in the form of coating for steel & copper alloys

8.Pick out the wrong statement?
A. Bronze is an alloy of copper & tin
B. Brass is an alloy of copper & zinc
C. The alloy named ‘German silver’ does not contain any silver
D. The ability of a material to fracture without appreciable deformation is called its ductility

9.The range of Mho’s scale of hardness is from ?
A. 1 to 15
B. 1 to 8
C. 1 to10
D. 0 to 10

10.possesses viscoelastic properties?
A. Cork
B. Glass
C. Graphite
D. Rubber

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