AKTU Engineering Mechanics & Strength of Material · Important Questions 2026Source: ryzenstudy.com PYQs
BME402 Engineering Mechanics & Strength of Material Important Questions 2026 (AKTU)
Repeat analysis + most-asked questions, unit-wise
What we did: built from all 4 AKTU Engineering Mechanics & Strength of Material papers (2021-22–2025-26): 93 questions grouped into 68 distinct questions, 13 of which were asked in more than one paper.
- of marks were repeat questions
- 29%
- of marks were repeat questions
- questions asked in 2+ papers
- 13
- questions asked in 2+ papers
- papers analysed (2021-22–2025-26)
- 4
- papers analysed (2021-22–2025-26)
- units, mapped to current syllabus
- 5
- units, mapped to current syllabus
How much of the paper repeats?
- Repeats are real: when we checked each newer BME402 paper against the papers before it, on average 29% of its marks were questions already asked in an earlier paper.
- 2024-25 paper: 36% of marks were repeats (7 of 8 repeated questions were in our top list).
- 2025-26 paper: 23% of marks were repeats (3 of 4 repeated questions were in our top list).
- Topic weightage is a guide, not a guarantee: our Tier 1 + Tier 2 topics covered 66% of the next paper's marks — picking the same number of topics at random would have covered about 54%.
Across 10 subjects and 23 papers we tested, 43% of marks repeated earlier questions on average.
1.Unit-wise most-asked questions
Ranked by how many papers asked them, then by how recently. Click a paper to open it.
Unit 1: (10 Hours) Introduction · Trusses · Beam
28% of past marks| Question | Asked |
|---|---|
| A beam (span 8 m) carries: UDL = 10 kN/m, point load = 20 kN at mid. Draw SFD & BMD and find max bending moment. | Asked 4× |
| Determine magnitude and nature of forces in members of given truss. (see original paper) | Asked 3× |
| Define a free body diagram and its importance. | Asked 2× |
| A 600 N block rests on a rough plane inclined at 25°. A force is applied parallel to plane. Find the force required to just move it upward and downward (μ = 0.3). 7 marks2025-26 Q2(a) | Asked 1× |
Unit 2: Compound stress and strains
21% of past marks| Question | Asked |
|---|---|
| A bar is subjected to: tensile stress = 120 MPa, shear stress = 60 MPa. Find principal stresses and max shear stress. | Asked 2× |
| What are principal stresses? | Asked 2× |
| A rectangular hole is made in a triangular section as shown. Determine the moment of inertia of the section about X-X axis passing through its center of gravity and the base BC. (see original paper) | Asked 2× |
| Find centroid of a composite area: rectangle (100×50 mm) with a semicircle cut-out. 7 marks2025-26 Q4(a) | Asked 1× |
Unit 3: (8 Hours) Stresses in Beams · Deflection of Beams · Torsion
19% of past marks| Question | Asked |
|---|---|
| Determine the slope and deflection of simply supported beam of length l subjected to a uniformly distributed load w over the length of beam by Macaulay’s method. | Asked 2× |
| A solid steel shaft has to transmit 100 kW at 160 RPM. Taking allowable shear stress as 70 MPa, find the suitable diameter of the shaft. The maximum torque transmitted in each revolution exceeds the mean by 20%. | Asked 2× |
| Define torsion of shaft. Derive an expression for torsion equation of solid circular shaft subjected to torque T. | Asked 2× |
| A cantilever beam (length 3 m) carries: UDL = 5 kN/m, point load = 10 kN at free end. Find slope and deflection at free end. 7 marks2025-26 Q2(c) | Asked 1× |
Unit 4: Columns and Struts
18% of past marks| Question | Asked |
|---|---|
| A helical spring: wire dia = 10 mm, mean dia = 80 mm, load = 500 N. Find deflection and shear stress. | Asked 2× |
| Derive an expression for bending stresses of leaf spring of span length l, width b, thickness t, number of plates n, subjected to load w. | Asked 2× |
| Derive the expression for the critical buckling load for a column having one end fixed and the other end free. 7 marks2025-26 Q6(b) | Asked 1× |
| A closely coiled helical spring is to carry a load of 500 N. Its mean coil diameter is to be 10 times that of the wire diameter. Calculate these diameters if the maximum shear stress in the material of the spring is to be 80 MN/m2. 7 marks2025-26 Q6(a) | Asked 1× |
Unit 5: Thick cylinders
15% of past marks| Question | Asked |
|---|---|
| A thin cylinder: diameter = 1 m, thickness = 10 mm, pressure = 2 MPa. Find hoop stress, longitudinal stress and volumetric strain. | Asked 2× |
| A cast iron pipe of 400 mm internal diameter and 100 mm thickness carries water under a pressure of 8 N/mm2. Determine the maximum and minimum intensities of hoop stress across the section. Also sketch the radial pressure distribution and hoop stress distribution across the section. | Asked 2× |
| A rotating cylinder: radius = 0.5 m, speed = 3000 rpm. Find induced stresses. 7 marks2025-26 Q7(b) | Asked 1× |
| A built up cylindrical shell of 300 mm diameter, 3 m long and 6 mm thick is subjected to an internal pressure of 2 MN/m2. Calculate the change in length and diameter of the cylinder under that pressure if the efficiencies of the longitudinal and circumferential joints are 80% and 50% respectively. E = 200 GN/m2; µ = (value cut off in OCR). (see original paper) 7 marks2025-26 Q7(a) | Asked 1× |
2.Topic weightage: which topics carry the marks
Blue = Tier 1 + Tier 2 (topics that carried ~80% of past marks). Grey = the rest. It shows where marks have gone, not a promise of what comes next.
Thin cylinders and spheres · U5
8.5% (cum 9%)
Torsion of shafts · U3
7.5% (cum 16%)
Laws of friction · U1
7.5% (cum 24%)
Shear force and bending moment · U1
7.2% (cum 31%)
Principal stresses and Mohr circle · U2
6.9% (cum 38%)
Euler buckling of columns · U4
5.2% (cum 43%)
Trusses · U1
5.2% (cum 48%)
Thick cylinders · U5
5.2% (cum 53%)
Deflection of beams · U3
5% (cum 58%)
Centroid · U2
4.8% (cum 63%)
Moment of inertia · U2
4.6% (cum 68%)
Pure bending and bending stress · U3
4.5% (cum 72%)
Helical springs · U4
4.3% (cum 76%)
Leaf and laminated springs · U4
3.9% (cum 80%)
Equilibrium of forces · U1
3.7% (cum 84%)
Force systems and resultants · U1
3.4% (cum 87%)
Stress and strain · U2
2.9% (cum 90%)
Rankine Gordon formula · U4
2.6% (cum 93%)
Combined bending and torsion · U3
1.6% (cum 95%)
Slenderness and end conditions · U4
1.5% (cum 96%)
Rotating cylinders · U5
1.3% (cum 97%)
Free body diagram · U1
1.3% (cum 99%)
Thermal stresses · U2
0.7% (cum 99%)
Strain energy and impact · U2
0.6% (cum 100%)
| Topic | Papers | Share |
|---|---|---|
| Thin cylinders and spheres · Unit 5 · Tier 1 | 3/4 | 8.5% |
| Torsion of shafts · Unit 3 · Tier 1 | 4/4 | 7.5% |
| Laws of friction · Unit 1 · Tier 1 | 3/4 | 7.5% |
| Shear force and bending moment · Unit 1 · Tier 1 | 4/4 | 7.2% |
| Principal stresses and Mohr circle · Unit 2 · Tier 1 | 3/4 | 6.9% |
| Euler buckling of columns · Unit 4 · Tier 1 | 3/4 | 5.2% |
| Trusses · Unit 1 · Tier 1 | 3/4 | 5.2% |
| Thick cylinders · Unit 5 · Tier 1 | 2/4 | 5.2% |
| Deflection of beams · Unit 3 · Tier 2 | 3/4 | 5% |
| Centroid · Unit 2 · Tier 2 | 3/4 | 4.8% |
| Moment of inertia · Unit 2 · Tier 2 | 2/4 | 4.6% |
| Pure bending and bending stress · Unit 3 · Tier 2 | 4/4 | 4.5% |
| Helical springs · Unit 4 · Tier 2 | 2/4 | 4.3% |
| Leaf and laminated springs · Unit 4 · Tier 2 | 3/4 | 3.9% |
| Equilibrium of forces · Unit 1 · Tier 3 | 3/4 | 3.7% |
| Force systems and resultants · Unit 1 · Tier 3 | 2/4 | 3.4% |
| Stress and strain · Unit 2 · Tier 3 | 3/4 | 2.9% |
| Rankine Gordon formula · Unit 4 · Tier 3 | 2/4 | 2.6% |
| Combined bending and torsion · Unit 3 · Tier 3 | 1/4 | 1.6% |
| Slenderness and end conditions · Unit 4 · Tier 3 | 2/4 | 1.5% |
| Rotating cylinders · Unit 5 · Tier 3 | 1/4 | 1.3% |
| Free body diagram · Unit 1 · Tier 3 | 2/4 | 1.3% |
| Thermal stresses · Unit 2 · Tier 3 | 1/4 | 0.7% |
| Strain energy and impact · Unit 2 · Tier 3 | 1/4 | 0.6% |
3.Paper pattern (2025-26)
| Section | Questions | Rule |
|---|---|---|
| A | 7 × 2 marks | Attempt all |
| B | 5 × 7 marks | Attempt any 3 |
| C | 10 × 7 marks | Attempt any 1 |
4.Study order
- 1Thin cylinders and spheres (Unit 5, Tier 1)
- 2Torsion of shafts (Unit 3, Tier 1)
- 3Laws of friction (Unit 1, Tier 1)
- 4Shear force and bending moment (Unit 1, Tier 1)
- 5Principal stresses and Mohr circle (Unit 2, Tier 1)
- 6Euler buckling of columns (Unit 4, Tier 1)
- 7Trusses (Unit 1, Tier 1)
- 8Thick cylinders (Unit 5, Tier 1)
- 9Deflection of beams (Unit 3, Tier 2)
- 10Centroid (Unit 2, Tier 2)
- 11Moment of inertia (Unit 2, Tier 2)
- 12Pure bending and bending stress (Unit 3, Tier 2)
- 13Helical springs (Unit 4, Tier 2)
- 14Leaf and laminated springs (Unit 4, Tier 2)
FAQ
Which units of BME402 carry the most marks?
Unit 1 ((10 Hours) Introduction · Trusses · Beam, 28% of past marks) and Unit 2 (Compound stress and strains, 21% of past marks).
Do AKTU Engineering Mechanics & Strength of Material questions repeat?
Yes. On average 29% of the marks in each newer BME402 paper came from questions already asked in an earlier paper, and 13 questions have appeared in more than one paper.
How is this list made?
Every question from the 4 papers (2021-22–2025-26) was mapped to the current AKTU syllabus and grouped with the same question from other years. Questions are ranked by how many papers they appeared in, then by how recently.
Study this subject
Note: this is based on past AKTU papers, not a guarantee. Questions are mapped to the current syllabus; topics that are no longer in the syllabus are left out.