75 civil engineering interview questions

  • What is the bending moment (BM) & Shear force (SF) – Explain.
  • What are the steps involved in the concreting process, explain?
  • Describe briefly the various methods of concrete curing.
  • What is the minimum curing period?
  • What Do You Understand by M25 Concrete?

Bursting Reinforcements: These kinds of stresses occur in cases where the stress trajectories are concave towards the line of action of load. In order to reduce such stresses, reinforcements in the form of bursting are required.

AutoCAD and 3D Max are the most popular software used in Civil Engineering. These are helpful in making various high-tech presentations, reports, billing purposes. All the designs, modeling, design, architectural drawing, Auto-desk 2D and 3D designs can be successfully made with the help of this two software.

Question 47. According to you, what is that one important quality that a civil engineer should possess?

Question 27. What do you mean by One storeyed, Two storeyed building? The building which has two floors is called two storeyed building.

Question 69. A wall constructed to resist the pressure of an earth filling, is known as

Civil Engineering Interview Questions

Congratulation on being shortlisted for your career-changing civil engineering interview. But getting a civil engineering job is not as simple as that.

An essential part of preparing yourself for an interview is knowing what type of questions might be asked to you.

In this way, you can prepare your answer in advance, feel confident during the interview, and impress the interviewer with your response.

Here we share a list of frequently asked civil engineering interview questions and answers to assure your success in the interview.

Concrete Technology

1. What is Concrete Grade?

Concrete is designated based on its compressive strength at 28 days as measured in standard conditions with a 150 mm size cube. According to IS 456-2000, concrete is graded into three types.

  • Ordinary Grade
  • Standard Grade
  • High strength Concrete
  • 2. What do you mean by M 20 concrete?

    In M20, M stands for mix, and the numerical number indicates its characteristic compressive strength in N/mm2 at 28 days as measured in standard conditions with a 150 mm size cube.

    3. What do you mean by the characteristic compressive strength of concrete?

    The concrete strength below, which not more than 5% of test results are expected to fail, means 95% of tested cubes should have this value.

    4. What is the minimum concrete grade for RCC Work?

    It should not be lower than M20.

    5. What is the minimum concrete grade for PCC Work?

    Lower than M20 grade concrete can be utilized for PCC work,

    Simple foundation for masonry walls, and other simple work.

    6. What is the density or unit weight of Plain Cement Concrete?

    7. What is the density or unit weight of Reinforced Cement Concrete?

    8. What is the density or unit weight of cement?

    9. What is the volume of one bag of cement?

    10. What is the Grade of Cement?

    As per the Bureau of Indian standards, OPC cement has three grades that are

  • 33 grade,
  • 43 grade,
  • 53 grade.
  • 75 civil engineering interview questions

    11. What are the types of Concrete Mix?

  • Nominal Mix Concrete
  • Design Mix Concrete
  • 12. What is the Water-cement ratio?

    The water to cement ratio by weight refers to the water-cement ratio.

    13. What is the importance of the W/C ratio?

    It decides the concrete quality, strength, and durability.

    14. What is the idle water-cement ratio for hand mixing?

    For hand mixing, it is 0.45, and a maximum of 0.6 is allowed. For machine mixing, it may range between 0.4 to 0.5.

    15. What do you mean by the workability of concrete?

    It measures the ease and difficulty of handling concrete from the mixing stage to its final fully compacted stage. Workable concrete should be free from segregation and bleeding effects.

    16. What is segregation?

    The separation of coarse aggregate from the concrete mass in its plastic state refers to segregation. Segregation occurs when the concrete mix is very lean and wet.

    17. What is Bleeding?

    When water rise on the surface of freshly placed concrete is known as bleeding.

    18. What are the properties of fresh concrete?

    Workability. Slump loss, segregation, bleeding, plastic shrinkage, water-cement ratio, temperature, and setting.

    19. Why is the Slump test of concrete performed?

    To know the concrete workability.

    20. What are the different types of slumps of concrete?

  • True slump,
  • Shear slump,
  • Collapse slump
  • 21. What is the slump value of concrete for normal RCC work?

    It is 80 to 150 mm for normal RCC work and 25 to 50 mm for mass concreting.

    22. What are the various steps involved in the process of concreting?

    23. What should be the minimum value of concrete cover?

    It should not be less than double the stirrup bar diameter.

    24. Why is the concrete cover value for different RCC Members?

  • Slab = 20 mm
  • Beam = 25 mm
  • Column = 40 mm
  • Footing = 50 mm
  • 25. What is the standard size of a concrete cube?

    150mm × 150 mm × 150 mm

    26. How many cubes are filled for 1 cubic meter of concrete?

    1 sample = 3 cube

  • 1-5cum = 1
  • 6 – 15 cum = 2
  • 16 – 30 cum = 3
  • 31 – 50 cum = 4
  • 50 cum and above = 4 plus one additional samples for each 50 additional cum.
  • 27. How much concrete gains strength after seven days?

    28. What is the soundness of cement?

    It is a property that makes sure the cement does not show any considerable expansion once it has been set.

    29. What are the names of different tests to check the concrete quality.

  • Workability,
  • Air Content,
  • Setting Time
  • Compressive strength,
  • tensile strength,
  • Modulus of Elasticity,
  • Permeability test,
  • In situ test
  • 30. What is the specific gravity of OPC cement?

    3.1 to 3.16 grams per cubic centimetre

    31. What is the specific gravity of PPC cement?

    32. What are the different field tests of cement?

    Colour test, float test, presence of lumps, Manufacturing date, Inside Temperature.

    33. How many days of cement last long?

    34. What is the normal consistency of OPC Cement?

    35. What should be the PH value of water used in concrete?

    36. What is the Idle temperature for concreting?

    It should be 26.7°C to 35°C As per the ASTM C1064 code.

    37. What is grouting?

    Grouting is the process of inserting material into cavities, concrete cracks, rock mass, soil, and masonry structure to increase their load-bearing capacity. The material used for this work is known as grout. Or It is a concrete fluid form applied to fill up the voids.

    38. What is shotcrete?

    It is the process of spraying and depositing very fine concrete or mortar onto a prepared surface by jetting it with high velocity.

    39. What are the different types of shotcrete processes?

  • Dry Mix Process
  • Wet Mix process
  • 40. What is Gunting?

    The dry mix shotcrete process is called guniting.

    41. Which material is used for filling cracks in masonry structure?

    42. Which machine is used for testing the compressive strength of concrete?

    43. What is a honeycomb in concrete?

    Honeycombs are voids or cavities on concrete formed due to mortar not filling the spaces between the coarse aggregate particles.

    Quality of cement can be checked with color, physical properties, etc. Cement should have grey color with light greenish shade. It should feel smooth when rubbed between fingers. If hand is inserted in a heap of cement or its bags, it should feel cool. When pinch of cement is thrown in Water then cement should float for some time before it sink. Also, it should be lump free.

    There are various types of cement which are: Ordinary Portland Cement (OPC), White Portland Cemetn (WPC), Portland Pozzolana Cement (PPC), Low Heat Portland Cement, Coloured Portland Cement, Hydrophobic cement, Rapid Hardening Cement, Portland Slag Cement, Sulphate resisting Portland Cement, etc.

    If there is no more water seen (brightness) on the surface of the concrete, or if there is no water on the surface of the concrete.

    A Civil foremen duties/responsibilities is inspect on sides and management of each work on side and labor work, work quality also record of all work and each labor man & control work on time,on side accident, machines,material,tools. etc are full responsibility a side foremen.

    Release of lien is a written document executed by an individual or firm supplying labor, material or professional service on a project, which release his mechanic’s lien against the project property.


    What are the basic questions asked in civil engineering interview?

    Most Asked Civil Engineering Interview Questions
    • 1) What is civil engineering? …
    • 2) Which are the different sub-disciplines of civil engineering? …
    • 3) Who is known as the father of civil engineering? …
    • 4) How should I introduce myself in civil engineering interview?

    What are the 10 most common interview questions and answers engineering?

    20 common engineering interview questions
    • Tell me about the most challenging engineering project you’ve worked on.
    • Describe a written technical report or presentation you had to complete.
    • Explain a time you had to use logic to solve an engineering problem.
    • Describe a time you demonstrated leadership skills at work.

    Who is known as the father of civil engineering?

    John Smeaton was the first to refer to himself as a civil engineer back in the 18th century and has since come to be known as the father of civil engineering.

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