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BARC 2021 ME: Strength of Materials Nuclear Quiz 2

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Question 1

A cantilever beam of length 2 m is acted upon by a concentrated load of 450 N (downward) at the free end and a load P (downward) at the mid-point. If the deflection at the free end of the beam is 15 mm, then the value of load P is _______(N)
(E = 10 GPa and I = 10mm4)

Question 2

For the configuration of loading shown in the figure, the stress in fibre AB is given by

Question 3

A steel tube of outer diameter 86mm and inner diameter 52mm is under pure torsion. The diameter of a solid steel shaft that resists the same torque at the same maximum shear stress is?

Question 4

A beam loaded by a 10kN UDL. The cross-section of the beam is 100×30×1000 mm(b×t×l). Determine the section modulus of the beam?

Question 5

For the simply supported beam as shown in figure. The required section modulus if the allowable bending stress is
is ___ cm3.


Question 6

The shear stress distribution of a rectangular cross section of a beam follows

Question 7

A beam of circular section is subjected to a load of 4kN. If the diameter of the circular section is 0.1m. Calculate the maximum shear stress.

Question 8

A rod tapers uniformly from 60 mm to 30 mm diameter in a length of 300 mm. If the rod is subjected to an axial load of 6000 N, then the extension of the rod ( in µm ) ___.
[Take E = 2 × 105 N/mm2]

Question 9

For which one of the following columns, Euler’s buckling load

Question 10

According to a stiffness based design, a solid shaft has a diameter 50mm and the shear modulus of the material of the shaft is Find out the Torsional rigidity.
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