Bachelor of Mechanical Engineering Exam 2026 October

BME

1. A
2. C
3. A
4. B
5. B
6. C
7. B
8. B
9. B
10. B
11. C
12. C
13. B
14. C
15. D
16. B
17. C
18. A
19. A
20. B
21. B
22. A
23. C
24. C
25. A
26. B
27. B
28. B
29. A
30. C

Sample BME - Bachelor of Mechanical Engineering Practice Questions

Try these questions from our free BME - Bachelor of Mechanical Engineering practice tests. The correct answer and an explanation follow each question.

1. In a Mohr's circle construction, the center of the circle lies at:

   • A. (σ_x, τ_xy)
   • B. ((σ_x + σ_y)/2, 0)
   • C. ((σ_x − σ_y)/2, τ_xy)
   • D. ((σ_x + σ_y)/2, τ_xy)

Answer: B. ((σ_x + σ_y)/2, 0)

The center of Mohr's circle is at the average normal stress ((σ_x + σ_y)/2, 0) on the σ–τ plane.

Answer: C. Increases thermal efficiency

Higher pressure ratio increases the thermal efficiency of the Brayton cycle because more compression raises the average temperature of heat addition.

Answer: B. Time-dependent permanent deformation under constant stress

Creep is the slow, time-dependent plastic deformation that occurs under sustained stress, especially above ~0.4 T_m (homologous temperature).

Answer: A. Formation and collapse of vapor bubbles due to local pressure drop below vapor pressure

Cavitation occurs when local pressure falls below the liquid's vapor pressure, causing vapor bubbles that implode violently and damage pump components.

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