
Solution
Solid Mechanics Most Important Questions With Answers (End Sem)
Solid Mechanics
Solid Mechanics (SM) is a semester 3 subject in Second Year Engineering, Mechanical Engineering, at Savitribai Phule Pune University (SPPU).
Here you’ll find 7 previous question papers (2023–2025), 1 solved paper and 3 video lectures.
Every question of 6 papers (May 2023 to Nov 2025) is written out on the paper pages below, so you don’t need to open a PDF.
Insem papers are 30 marks (1 hour) and endsem papers are 70 marks (2½ hours). These are 2019-pattern papers.
Pick a paper to read all its questions. No sign-in needed.
Asked in more than one SPPU paper, out of 6 we have.
A composite shaft consist of copper rod of 20 mm diameter enclosed in a steel tube of 60 mm external diameter and 20 mm thick. The shaft is required to transmit to torque of 1200 Nm. Determine the shear stresses developed in the copper and steel if both the shaft have equal length and welded to a plate at each end so that their twists are equal take modulus of rigidity for steel as twice that copper.
A hollow shaft with diameter ratio 3/5 is required to transmit 450 kW at 120 rpm with a uniform twisting moment. The shearing stress in the shaft must not exceed 60 N/mm 2 and the twist in a length of 2.5 m must not excced 1°. Calculate the external diameter of the shaft satisfying these conditions.Take the modulus of rigidity is 8 × 10 4 N/mm 2 .
A rectangular block of material is subjected to a tensile stress of 110 N/mm 2 on one plane and a tensile stress of 60 N/mm 2 on a plane at right angles, together with shear stresses of 70 N/mm 2 on the faces. Find the following terms : i) The magnitude of principal stresses ii) The magnitude of greatest shear stress iii) The location of principle plane iv) The location of plane containing maximum shear stress

Solution
Solid Mechanics
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