A 4 m long solid round bar is used as a column having one end fixed an – McqOptions

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1.	A 4 m long solid round bar is used as a column having one end fixed and the other end free. If Euler’s critical load on this column is found as 10 kN and E = 210 GPa for the material of the bar, the diameter of the bar is
A.	50 mm
B.	40 mm
C.	60 mm
D.	45 mm
Answer» B. 40 mm

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