For calculating the allowable stress of long columns. The empirical fo – McqOptions

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1.	For calculating the allowable stress of long columns. The empirical formula 0 y/n) (1 - a l/r), is known as
A.	Straight line formula
B.	Parabolic formula
C.	Perrys formula
D.	Rankines formula
Answer» B. Parabolic formula

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