GATE Previous Years Strength of Materials Questions GATE 2018 SOM solved questions set 2 By Rutuja Bothara
RUTUJA BOTHARA e Perusing B.Tech in Mechanical Engineering from Vellore Institute of Technology, Vellore. (2015-2019) . Placed in Alstom Transport India Ltd e Cleared JEE Mains 2015 e Cleared VITEEE-2015 with AIR 8718 e Cracked HITSEEE-2015 with AIR 91 . Worked as a Career Counsellor in Teachers Academy (2016- 2018) and BOLO app. https://unacademy.com/user/rurutujajb96-9511
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Total Weightage 14 Marks 2Q 1 mark .6Q 2 Marks 4 ADD A FOOTER MM.DD.20XX
The minimum axial compressive load, P, required to initiate buckling for a pinned-pinned slender column with bending stiffness El and length L is El (A) P = (B) P= (C) P. A12 . .41
The buckling load for pinne d-pinne Glende column.
A hollow circular shaft of inner radius 10 mm, outer radius 20 mm and length 1 m is to be used as a torsional spring. If the shear modulus of the material of the shaft is 150 GPa, the torsional stiffness of the shaft (in kN-m/rad) is (correct to two decimal places).
Torsional si4hess is siven by 32 35,34 KNm ra
A bar of circular cross section is clamped at ends P and Q as shown in the figure. A torsional moment F 150 Nm is applied at a distance of 100 mm from end P. The torsional reactions (PQin Nm at the ends P and Q respectively are 100 200 (All dimensions are in mm) (50,100)(B) (75, 75) C)(100,50)(D)(120,30)
We Kh that f-o r paraul configutation wle JG 3G -Lg =200 100 TL
. A bimetallic cylindrical bar of cross sectional area 1 m2 is made by bonding Steel (Young's modulus 210 GPa) and Aluminum (Young's modulus = 70 GPa) as shown in the figure. To maintain tensile axial strain of magnitude 10~(-6) in Steel bar and compressive axial strain of magnitude 10 (-6) in Aluminum bar, the magnitude of the required force P (in kN) along the indicated direction is (A) 70 (B) 140 (C) 210 (D) 280
eAl uanSHoin A Es S Ea P-Pa 14 AD DD.20xx
end cap end cap ressurized can 50 MPa
Stress due 4 PA 24 t
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