The document GATE Past Year Questions: Torsion of Shafts Notes | EduRev is a part of the Mechanical Engineering Course Strength of Materials (SOM).

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Try yourself:A cyiindrical elastic body subjected to pure torsion about its axis develops

[1989]

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Try yourself: A circular rod of diameter d and length 3d is subjected to a compressive force F acting at the top point as shown below. Calculate the stress at the bottom most support point A

[1993]

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Try yourself: Maximum shear stress developed on the surface of a solid circular shaft under pure torsion is 240 MPa. If the shaft diameter is doubled then the maximum shear stress developed corresponding to the same torque will be

[2003]

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Try yourself:A solid circular shaft of 60mm diameter transmits a torque of 1600 Nm. The value of maximum shear stress developed is

[2004]

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Try yourself:For a circular shaft of diameter d subjected to torque T, the maximum value of the shear stress is

[2006]

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Try yourself:A solid circular shaft of diameter d is subjected to a combined bending moment M and torque, T. The material property to be used for designing the shaft using the relation is

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Try yourself:A shaft with a circular cross-section is subjected to pure twisting moment. The ratio of the maximum shear stress to the largest principal stress is

[2016]

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Try yourself:A machine element XY, fixed at end X, is subjected to an axial load P, transverse load F, and a twisting moment T at its free end Y. The most critical point from the strength point of view is

[2016]

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Try yourself:The compound shaft shown is built-in at the two ends. It is subjected to a twisting moment T at the middle. What is the ratio of the reaction torques T_{1}, and T_{2 }at the ends?

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Try yourself:Two shafts A and B are made of the same material. The diameter of shaft B is twice that of shaft A. The ratio of power which can be transmitted by shaft A to that of shaft B is (If maximum shear stress remains the same)

[1994]

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Try yourself:A torque of 1.0 Nm is transmitted through a stepped shaft as shown in figure. The torsional stiffnesses of individual sections of lengths M N, NO and OP are 20 Nm/rad, 30 Nm/rad and 60 Nm/rad respectively. The angular deflection between the ends M and P of the shaft is

[2004]

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Try yourself:Two shafts AB and BC, of equal length and diameters d and 2d, are made of the same material. They are joined at B through a shaft coupling, while the ends A and C are built-in (cantilevered). A twisting moment T is applied to the coupling. If TA and Tc represent the twisting moments at the ends A and C, respectively, then

[2005]

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Try yourself:A torque T is applied at the free end of a stepped rod of circular cross-sections as shown in the figure. The shear modulus of the material of the rod is G. The expression for d to produce an angular twist q at the free end is

[2011]

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Try yourself:A hollow shaft (d_{0} = 2d_{i} where d_{0} and di are the outer and inner diameters respectively) needs to transmit 20 kW power at 3000 RPM. If the maximum permissible shear stress is 30 MPa, d_{0} is

[2015]

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Try yourself: A stepped steel shaft shown below is subjected to 10 N-m torque. If the modulus of rigidity is 80 GPa, the strain energy in the shaft in N-mm is

[2007]

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