Gujarat Technological UniversityWinter 2023 examination

GTU 2130003 Mechanics of Solids (MOS) Winter 2023 Question Paper & PDF

B.E. · Common Engineering · Semester 3 · Subject code 2130003
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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6 of 25 questions on this paper were also asked in other years. 7 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 22 repeated 2130003 questions, most asked first

Q.1

14 Marks
(a)
3 marks
Explain principle of transmissibility and superposition
(b)
4 marks
State and explain parallelogram law of forces
(c)
7 marksSame type asked in 5 of 5 papers
Find magnitude and direction of resultant of force system shown in
GTU Mechanics of Solids (2130003) Winter 2023 Question 1(c) Diagram

Also asked in Summer 2026 Q1c, Summer 2025 Q1c, Winter 2024 Q1c, Summer 2024 Q1c, Summer 2024 Q4c

Q.2

14 Marks
(a)
3 marksAsked in 2 of 5 papers
Differentiate moment and couple

Also asked in Summer 2024 Q2b

(b)
4 marks

Find the moment of all the forces about point O given in fig. 2 Consider size of the square as 1 cm x 1 cm.

GTU Mechanics of Solids (2130003) Winter 2023 Question 2(b) Diagram
(c)
7 marksSame type asked in 5 of 5 papers
Determine support reaction for the given beam shown in
GTU Mechanics of Solids (2130003) Winter 2023 Question 2(c) Diagram

Also asked in Summer 2026 Q3b, Summer 2025 Q2a, Summer 2025 Q2b, Winter 2024 Q3c, Summer 2024 Q3b

(c)
7 marks

Two shafts A of 700 kN and B of 400 kN are supported as shown in fig. 4 Neglecting friction at the contact surfaces P, Q, R and S, determine the reactions at all contact surfaces.

GTU Mechanics of Solids (2130003) Winter 2023 Question 2 OR (c) Diagram

Q.3

14 Marks
(a)
3 marks

Explain (a) Homogeneous material (b) Yield strength (c) Prismatic section

(b)
4 marks

A circular brass rod of 2m length is subjected to axial pull of 15kN. What should be the diameter of the rod so that stress should not be more than 120 N/mm² and elongation should not be more than 6mm. Take E = 120 GPa.

(c)
7 marksSame type asked in 5 of 5 papers

Draw shear force and bending moment diagram of the beam shown in Fig. finding values at all important points on the beam.

GTU Mechanics of Solids (2130003) Winter 2023 Question 3(c) Diagram

Also asked in Summer 2026 Q3c, Summer 2025 Q2c, Summer 2025 Q2c OR, Winter 2024 Q3c OR, Summer 2024 Q3c

(a)
3 marksAsked in 2 of 5 papers

Illustrate stress Vs strain graph for a standard mild steel bar. Show all the salient points on the graph.

Also asked in Summer 2025 Q5a OR

(b)
4 marksSame type asked in 3 of 5 papers

In a standard tensile test, a bar of 20mm diameter undergoes elongation of 14mm in a gauge length of 150mmand a decrease in diameter of 0.85mm at a tensile load of 6 kN. Determine the Poisson’s ratio.

Also asked in Summer 2026 Q4c, Summer 2024 Q4c OR

(c)
7 marks

A rectangular block of 525mm x 230mm x 115mm is subjected to following load

i)on 230 x 115mm face 1550 kN tensile
ii)on 525 x 230 mm face 2575 kN tensile
iii)on 525 x 115mm face 2100 kN compressive. Find the strain on all directions. Take Poisson’s ratio as 0.25 and E = 2 x10⁵ N/mm².

Q.4

14 Marks
(a)
3 marks
Differentiate centroid and center of gravity.
(b)
4 marks
Explain laws of friction
(c)
7 marksSame type asked in 4 of 5 papers

Find moment of inertia of a given section in fig. 6 about its centroidal axis

GTU Mechanics of Solids (2130003) Winter 2023 Question 4(c) Diagram

Also asked in Summer 2026 Q2c OR, Summer 2025 Q3b, Summer 2024 Q3b OR

(a)
3 marksAsked in 2 of 5 papers
Explain different types of supports with their reactions.

Also asked in Summer 2024 Q1a

(b)
4 marks

Locate the Centre of Gravity of composite 3d object shown in fig.7 (all dimensions are in mm)

GTU Mechanics of Solids (2130003) Winter 2023 Question 4 OR (b) Diagram
(c)
7 marks
Determine the horizontal force on block required to cause
GTU Mechanics of Solids (2130003) Winter 2023 Question 4 OR (c) Diagram
i)impending motion downward and
ii)impending motion upward. Refer fig. Take μ = 0.55.

Q.5

14 Marks
(a)
3 marksAsked in 2 of 5 papers
Write assumptions made in theory of pure torsion.

Also asked in Summer 2026 Q3a OR

(b)
4 marksAsked in 3 of 5 papers
Draw shear stress distribution diagram for following sections
i)rectangle
ii)Hollow circular
iii)hollow rectangular
iv)L section.

Also asked in Winter 2024 Q5a, Summer 2024 Q5a OR

(c)
7 marks

A simply supported beam of 3m span is subjected to central load ‘W’ and having rectangular cross section 275mm x 425mm. If permissible shear stress is 3 N/mm² Calculate maximum permissible load on beam in bending and shear.

(a)
3 marksAsked in 2 of 5 papers
Write the assumptions made in the theory of pure bending.

Also asked in Summer 2026 Q5a OR

(b)
4 marksSame type asked in 2 of 5 papers

A shaft is required to transmit 1MW at 240 rpm. If the shear stress is not to exceed 55 N/mm² determine the required diameter of the shaft.

Also asked in Summer 2026 Q4c OR

(c)
7 marksSame type asked in 3 of 5 papers

A material is stressed by shear 5 N/mm², axial compression 3 N/mm² in X-direction and axial tension 7 N/mm² in Y direction. Calculate (i.) Normal and tangential stress on plane making 60º with X-axis.

iiMaximum normal stress with their locations.

Also asked in Summer 2025 Q5c, Summer 2024 Q5c OR

More Mechanics of Solids papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions
Summer 202570 marks · 5 questions
Winter 202470 marks · 5 questions
Summer 202470 marks · 5 questions

Other Semester 3 subjects

BE Common

2130002
Advance Engineering Mathematics
3130005
Complex Variables and Partial Differential Equations
BE03000051
Professional Communication and Ethics
BE03000061
Indian Constitution

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About this paper

Official Gujarat Technological University (GTU) examination paper for Mechanics of Solids (MOS) (Winter 2023, B.E. · Common Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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