ASSIGNMENT (MEC-101) Submission Date 24/11/2012 Max. Ma

ASSIGNMENT (MEC-101) Submission Date 24/11/2012 Max. Marks=30 Q1. In the problem given below draw SFD and BMD indicating values at salient point. (5) Q2. Unsymmetric I-section shown in Fig. 10.25 is used as a cantilever of span 2 m to carry uniformly distributed load of 6 kN/m over entire span. Draw the variation of bending stress across the depth marking the values at salient point. (5) Q 3. A torque T =3 kNm is applied to the solid bronze cylinder shown in fig below . Determine (a) the maximum shearing stress (b) the shearing stress at point D which lies on a 15-mm-radius circle drawn on the end of the cylinder (c) the percent of the torque carried by the portion of the cylinder within the 15-mm radius. (5)
ASSIGNMENT (MEC-101) Submission Date 24/11/2012 Max. Marks=30 Q 4. Derive the expression for finding shear stress in a beam in the form q = (ay) with usual notations. (5) Q 5. (a) Determine the maximum shearing stress caused by a 4.6-kN m torque T in the 76-mm-diameter solid aluminum shaft shown. (b) Solve part a assuming that the solid shaft has been replaced by a hollow shaft of the same outer diameter and of 24-mm inner diameter. (5) Q 6. Draw the orthographic third angle projection of given object. (a) Front view (b) Top view and (c) Side view. (5)
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