A circular shaft subjected to torsion undergoes a twist of 1° in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be-A-π/18B-18/πC-π/27D-27/π-D-27/π

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A circular shaft subjected to torsion undergoes a twist of 1&deg; in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be-A-&pi;/18B-18/&pi;C-&pi;/27D-27/&pi;-D-27/&pi;

APTITUDE CRACK · Accepted Answer

The correct option is  D 27/&pi; from The Torsion Equation we have, T/J=GO/L=Fs/R here consider only GO/L= Fs/R, From the data we have theta = 1, l = 120cm, toue = 1000kg/cm^2 and G = 0.8 X 10^6, 0.8 x 10^6 x 1/120 = 1000/R then Radius of shaft R = 27/3.142(Phi).

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Q1: A circular shaft subjected to torsion undergoes a twist of 1° in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm² and if modulus of rigidity G = 0.8 x 10⁶ kg/cm², then the radius of the shaft should be

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UPSC Civil Service Exam Questions

Q1: A circular shaft subjected to torsion undergoes a twist of 1° in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be

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Q1: A circular shaft subjected to torsion undergoes a twist of 1° in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm² and if modulus of rigidity G = 0.8 x 10⁶ kg/cm², then the radius of the shaft should be

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