A steel rod whose diameter is 2 cm and is 2 m long, experiences heating from 30°C to 150°C. The coefficient of thermal expansion is α = 12 × 10-6/°C and the rod has been restricted in its original position. The thermal stress developed is 288 MPa. What is the value of Young’s modulus (GPa)?

A steel rod whose diameter is 2 cm and is 2 m long, experiences heatin

1.	A steel rod whose diameter is 2 cm and is 2 m long, experiences heating from 30°C to 150°C. The coefficient of thermal expansion is α = 12 × 10-6/°C and the rod has been restricted in its original position. The thermal stress developed is 288 MPa. What is the value of Young’s modulus (GPa)?
A.	50
B.	100
C.	150
D.	200
Answer» E.