1.

Coefficient of expansion and modulus of elasticity for steel and aluminium are:

A. 12 × 10-6/°C, 23 × 10-6/°C, 200 Gpa, 80 Gpa
B. 14 × 10-6/°C, 20 × 10-6/°C, 220Gpa, 90 Gpa
C. 11 × 10-6/°C, 17 × 10-6/°C, 190 Gpa, 70 Gpa
D. 13 × 10-6/°C, 19 × 10-6/°C, 210 Gpa, 80 Gpa
Answer» B. 14 × 10-6/°C, 20 × 10-6/°C, 220Gpa, 90 Gpa


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