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GATE 2019: Strength of Material Quiz 9

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Question 1

For the system shown below, the natural frequency of system is _______ rad/s.
 Consider force F=143 N on disc and G=100GPa

Question 2

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

Question 3

A solid shaft of diameter d and length L is fixed at both the ends. A torque, T0 is applied at a distance, L/4 from the left end as shown in the figure given below.

The magnitude of maximum shear stress induced in the shaft is

Question 4

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  at the free end is
Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE EC-ME-17-Mar\GATE-ME-2011_files\image059.jpg

Question 5

A 30 mm dameter shaft is driven at 12 Hz by a motor delivering 25 kW of power. The maximum shear stress in the shaft is

Question 6

A shaft with a varying radius which varies linearly from 2R to R. A torsional load T is being applied on the free end of the shaft. What is the angle of rotation of the free end of the shaft?

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