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GATE (CE) : STRENGTH OF MATERIAL #8 (App update required to attempt this test)

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Question 1

A solid circular shaft is required to transmit 200 kW while turning at 1.5 rev/second. The allowable shearing stress is 42 MPa, then the required diameter of the shaft is ________cm.

Question 2

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

Question 3

A circular rod having diameter D is subjected to a torsional moment as shown in the figure below. The stresses at a point P will be

Question 4

A hollow circular shaft has an outer diameter of 100 mm and the inner diameter of 50 mm. If the allowable shear stress is 125 MPa, the maximum torque (in kN-m) that the shaft can resist is_____

Question 5

A circular shaft shown in the figure is subject to torsion T at two points A and B. The torsional rigidity of portions CA & BD is GJ₁ and that of portion AB is GJ₂. The rotations of Shaft at points A and B are θ₁ & θ₂ .The rotation θ₁ is
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Question 6

A circular shaft of diameter 300 mm and length 2.5 m is subjected to a torque, such that the angle of twist due to torsion is 0.025 radian. If the diameter and length of the shaft is doubled, the percentage decrease in the angle of twist will be

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ESE & GATE CE Strength of Materials

Jul 22ESE & GATE CE