UPSC Engineering Services Exam (ESE) MCQs

Prepare effectively for the UPSC Engineering Services Exam (ESE) with a comprehensive collection of multiple-choice questions (MCQs). These practice questions cover all key subjects such as Electrical Engineering, Mechanical Engineering, Civil Engineering, and Electronics & Telecommunication Engineering. The MCQs are designed to reflect the actual exam format, helping aspirants strengthen their knowledge, boost problem-solving abilities, and improve exam time management. Whether you're just starting your preparation or revising for the exam, these ESE MCQs are an essential resource to guide you toward success in the UPSC Engineering Services Exam.

Q1. What is the main ingredient of cement?

Correct Answer: A

Calcium carbonate is the primary raw material for making cement.

Q2. Which law explains the relationship between fluid velocity and pressure?

Correct Answer: A

Bernoulli's Principle relates fluid velocity to pressure.

Q3. What type of stress occurs due to twisting of a member?

Correct Answer: D

Torsional stress results from twisting forces.

Q4. Which of the following is a non-destructive test for concrete?

Correct Answer: C

Rebound Hammer test is non-destructive.

Q5. In a simply supported beam, the bending moment is maximum at:

Correct Answer: B

Maximum bending moment occurs at mid-span for simply supported beams.

Q6. What does HVAC stand for in civil engineering?

Correct Answer: A

HVAC means Heating, Ventilation, and Air Conditioning.

Q7. Which type of soil has the highest permeability?

Correct Answer: C

Gravel has the highest permeability.

Q8. Which test is used for measuring the specific gravity of soil?

Correct Answer: C

Pycnometer test determines specific gravity.

Q9. What is the unit weight of water commonly assumed in civil engineering?

Correct Answer: A

Unit weight of water is approximately 8.33 kN/mΒ³.

Q10. What is the standard compressive strength of concrete in M20 grade?

Correct Answer: A

M20 grade concrete has a characteristic strength of 20 MPa.

Q11. Which of the following is a building material used for insulation?

Correct Answer: A

Glass wool is commonly used for insulation.

Q12. The strain energy stored in a material is maximum when:

Correct Answer: B

Strain energy is maximum at the yield point.

Q13. Which method is used for soil compaction?

Correct Answer: A

Proctor test is used for soil compaction.

Q14. Which steel property indicates its ability to deform without fracture?

Correct Answer: B

Ductility is the ability to deform before breaking.

Q15. Which type of foundation is used for heavy loads?

Correct Answer: B

Pile foundations are used for heavy loads.

Q16. Which soil type is best suited for foundations?

Correct Answer: C

Gravel has good load-bearing capacity.

Q17. The deflection at the free end of a cantilever beam subjected to a point load P is:

Correct Answer: A

Deflection formula for cantilever with point load at free end is PLΒ³/3EI.

Q18. What is the unit of modulus of elasticity?

Correct Answer: A

Modulus of elasticity is measured in Pascals.

Q19. What is the factor of safety in civil engineering?

Correct Answer: B

Factor of safety = Allowable stress / Maximum stress.

Q20. Which cement type is used for underwater construction?

Correct Answer: C

Sulphate Resisting Cement is suitable underwater.

Q21. Which test is performed to determine plasticity of soil?

Correct Answer: A

Atterberg limits measure soil plasticity.

Q22. In which type of flow Reynolds number is less than 2000?

Correct Answer: B

Reynolds number below 2000 indicates laminar flow.

Q23. What is the span of a simply supported beam if the load is uniformly distributed?

Correct Answer: C

Span is the length between supports.

Q24. Which material improves workability of concrete?

Correct Answer: B

Superplasticizers improve concrete workability.

Q25. Which law governs fluid flow through pipes?

Correct Answer: A

Hagen–Poiseuille's law applies to laminar pipe flow.

Q26. In fluid mechanics, the term β€œViscosity” refers to:

Correct Answer: B

Viscosity is a measure of fluid resistance to flow.

Q27. The factor used for designing structures considering possible inaccuracies is called:

Correct Answer: A

Factor of safety accounts for uncertainties.

Q28. Which type of load causes bending in a beam?

Correct Answer: B

Transverse load causes bending.

Q29. The Poisson's ratio for steel approximately is:

Correct Answer: B

Poisson's ratio for steel is about 0.3.

Q30. Concrete curing primarily helps in:

Correct Answer: A

Curing helps concrete gain strength.

Q31. Which testing method is used to check hardness of materials?

Correct Answer: A

Brinell test measures hardness.

Q32. The bending moment at the fixed end of a cantilever beam with point load P at free end is:

Correct Answer: A

Bending moment at fixed end = P Γ— L.

Q33. Which cement type is most commonly used in construction?

Correct Answer: B

Portland cement is the most common.

Q34. In structural analysis, a "Truss" is:

Correct Answer: B

A truss is a framework of interconnected members.

Q35. The water-cement ratio affects:

Correct Answer: A

Water-cement ratio impacts workability and strength.

Q36. In hydrology, the term β€œRunoff” refers to:

Correct Answer: B

Runoff is water flowing over the land surface.

Q37. What is the permissible stress of mild steel in tension?

Correct Answer: A

140 MPa is the permissible tensile stress.

Q38. Concrete is a mixture of Cement, Sand, Aggregate and:

Correct Answer: A

Cement, sand, aggregate and water make concrete.

Q39. Which of the following is a main cause of concrete deterioration?

Correct Answer: A

Carbonation causes concrete damage.

Q40. In fluid mechanics, the Bernoulli's equation applies to:

Correct Answer: B

Bernoulli's equation applies to incompressible flow.

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