engineering recuitment Indian Coast Guard Yantrik Mock Test 2024 Strength of Materials Simple Stress and Strain
A straight wire 15 m long is subjected to a tensile stress of 2000 kgf/cm2. Elastic modulus is 1.5 × 106 kgf/cm2. Coefficient of linear expansion for the material is 16.66 × 10-6 /°C. The temperature change (in °C) to produce the same elongation as due to the 2000 kgf/cm2 tensile stress in the material is:
1
40
2
80
3
120
4
160