engineering recuitment TSPSC AEE Civil Mock Test 2022 Strength of Materials Simple Stress and Strain
A bar of cross-sectional area 2 cm2 and length 100 cm fixed to rigid supports at both ends at a temperature of 25°C. The bar is subjected to an increases in temperature of 30°C. If the coefficient of linear thermal expansion of the material is 10 × 10-6/°C and Young’s modulus 2 × 105 N/mm2 the stress in the bar is
1
10 N/mm2 comp
2
20 N/mm2 comp
3
50 N/mm2 comp
4
50 N/mm2 tension