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Civil Engineer Interview Questions
List of Question which is commonly asked in Civil Engineering Interview!
- Why did you choose your degree? Which modules/projects/topics did you find most enjoyable and most difficult or challenging?
- Tell me about your final-year project/dissertation.
- Tell me about a time when you solved a technical problem.
- What did you do on ‘X’ internship and what technical knowledge did you learn?
- What is sustainable development? How would you implement and champion it on a project team?
- Identify the critical points along a buried pipe running down a hill.
- How would you approach a ground investigation for a building structure?
- Sketch a strip foundation and build up to how you’d construct a suspended slab.
- What considerations must be made when building on a site of special scientific interest (SSSI)?
- What is the best solution for replacing existing lights in order to improve the lighting efficiency of a highway?
- What is your understanding of the role of BIM [for this division]?
- What do you know about the CDM regulations?
- If you were presented with a beam element, how would you go about the design process?
- What crack width limit would you use to design a diaphragm wall?
- What flow profile can you expect when water is released from behind a weir by opening the sluice gates?
- What would you do if a client phoned you to say that a pump is not working? How would you solve the problem? What if that solution didn’t work?
- What are some of the factors affecting the flow capacity of a pipe?
Civil Engineer Interview Questions & Answers
- Question 1: What Do You Understand By “preset” During The Installation Process Of Bridge Bearings?
Answer: During the installation of bridge bearings, the size of the upper plates is reduced to save material costs. This process is known as preset.
- Question 2. What Reinforcements Are Used In The Process Of Prestressing?
Answer: The major types of reinforcements used in prestressing are:
- Spalling Reinforcement: The spalling stresses leads to stress behind the loaded area of the anchor blocks. This results in the breaking off of the surface concrete. The most likely causes of such types of stresses are Poisson`s effects strain interoperability or by the stress trajectory shapes.
- Equilibrium reinforcements: This type of reinforcements are required where several anchorages exist where the prestressing loads are applied in a sequential manner.
- 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.
- Question 3. Why Should Pumping Be Not Used In Case Of Concreting Works?
During the pumping operation, the pump exerted pressure must overcome any friction between the pumping pipes and the concrete, also the weight of the concrete and the pressure head when the concrete is placed above the pumps. Since only water pumps able, all the pressure generated is by the water that is present in the concrete. The major problem due to pumping are segregation effects and bleeding. In order to rectify and reduce these effects, generally, the proportion of the cement is increased in order to increase the cohesion, which leads to the reduction of segregation and bleeding. Also if a proper selection of the aggregate grading can vastly improve the concrete pump ability.
- Question 4. What Are The Different Type Of Slump Test Indications?
Slump tests are performed to empirically measure the workability of fresh concrete. It is used to measure the consistency of the concrete. In general, there are three different types of slumps that occur in slump tests.
They are as follows:
- True Slump: This type of slump is characterized by the general drop of the concrete mass evenly without visible signs of deterioration or disintegration.
- Shear Slump: It indicates that the concrete mix is deficient in cohesion. This type of slump leads to segregation and bleeding. Henceforth in the long run affecting the durability of the concrete.
- Collapse Slump: This type of slump is indicates that the mix of concrete is simply too wet. The mix is considered to be harsh and lean.
Note: This question is mostly asked, especially for BE candidates.
- Question 5. Why Are Pull-out Tests Performed For Soil Nails?
Pull out tests are performed for primarily the following reasons:
- In order to detect and verification of the bond strength among the soil and the grout adopted during the design of soil nails. This is considered to be the primary objective of performing pull out tests for soil nails.
- For the detection of any slippage or occurrence of creeps.
- To detect the elastic and deformations (plastic) of any of the test nails employed. Observations are made during the loading and unloading cycles of the soil nails repetitively.
- To achieve the perfect balance the test nails should always be loaded so that the ultimate soil/grout mixture with an upper limit of 80%.
Note: This question is mostly asked, especially for BE candidates.
- Question 6. What Is The Meaning Of Soil Reinforcement?
Soil reinforcement is the act of improving soil strength to enable it to support or carry more load.
Two common examples are:
- Mixing a soil amendment such as lime into weak clayey soil and re-comPActing to improve soil-bearing caPAcity (often done under the road base in highway construction)
- Installing plastic or composite webbing layers (called geo-grid material) alternating with comPActed soil to produce a stronger sloped soil structure (often done on steep roadway embankments to improve strength and stability)
Related Post to the Civil Engineer Interview Questions & Answers
- Question 7. What Is Braced Excavation All About?
Excavations are braced to prevent the cave-in of surrounding unstable soil.
- Question 8. What Are The Uses Of Alloys In Daily Life And How Are Alloys Made?
Alloying is not always done to produce a ‘superior’ material, but to produce materials having a desired requirement in the industry or elsewhere. A classic case is of lead solder (containing lead & tin), in which the melting point of the constituent elements are lowered, not necessarily a desirable property.
Alloying can be carried out using hot press method (a sheet of material is sandwiched with alloying material), rolling the heated base metal in a drum full of alloying metal powder, using hot spraying, galvanizing (dipping the base in a molten solution of alloying material) etc. Sometimes the alloying material is added in small proportions to the molten base metal (e.g., in the production of different types of steel).
- Question 9. What Is The Tallest Man-Made Structure In The World?
The tallest man-made structure is the KVLY-TV mast which is 2063 feet tall. The world’s tallest man-made structure is Burj Dubai which is 800 meters tall.
- Question 10. Which Is Stronger Solid Steel Rod Or Hollow Steel Pipe?
On a per-pound basis, steel pipe is stronger in bending and is less likely to buckle in axial compression.
- Question 11. How Do You Measure Concrete?
Cubic feet, Cubic yards, Cubic Meter.
Question 12. What are the different types of civil engineering?
- Construction Engineering
- Coastal Engineering
- Civil Engineering Systems
- Environmental Engineering
- Geotechnical Engineering
- Water Resources Engineering
- Structural Engineering
- Earthquake Engineering
- Forensic Engineering
- Urban or Municipal Engineering
- Transportation Engineering
- Materials Science and Engineering
Give an accurate answer to the above civil engineering interview question and score high.
- Question 13. What is the software used in civil engineering?
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 these two software.
- Question 14. What is the unit weight of Steel?
Per cubic meter, the unit weight of steel is 7850 kgs. In pounds per cubic foot, it is 489.8 pounds. It totally depends on the exact composition of the steel as it is an alloy of carbon and iron.
- Question 15. What is the crank length in the slab?
The minimum length of a crank is 300 mm.
The formula of Crank length = (d1+d2+5) *10mm where d1 is the diameter of smaller bar and d2 is the diameter of the largest bar.
Also, the slope of the crank is 1:10 (one of the common civil engineering interview questions.)
- Question 16 What is the strength of cement?
The cement’s strength is tested on hardened Cement-Sand mortar’s cubes, and these are prepared out of the cement which has a strength of 53MPa. It is derived from 53 Grade OPC Cement giving 28-days of compressive strength of the cement. It is one of the most common civil engineering interview questions.
Question 17. How is the strength of cement measured?
The measurement is done after the curing process has taken place for 7 days or 28 days. The load should be applied slowly at the rate of 140 kg/cm2 per minute until the Specimen fails. We get the compressive strength of the concrete or the cement at the load failure divided by the specimen’s area.
- Question 18. What are segregation and bleeding?
Bleeding, in civil engineering, is a process and state of mixing water in the concrete in which the concrete rises above the material’s surface.
- Question 19. What are the responsibilities of a site manager?
- Planning of all the work to be done on the project
- Make the decisions as required
- Organization and preparation of the list of the work
- Consider safety and health regulations along with the other legislation
- Traveling between the sites for client meetings
(One of the easiest civil engineering interview questions.)
- Question 20. What are the types of slump?
- Shear slump
- True Slump
- Collapse slump
(One of the easiest civil engineering interview questions.)
- Question 21. Explain the different types of roofing systems?
- Asphalt Shingles
- Laminated Asphalt Shingles
- Asphalt Roll Roofing
- Rubber Membrane Roofing
- Cedar Shingles or Shakes
- Living Roofs
- Solar Tiles
- Question 22. What is the effect of a building collapse?
- Loss of economy
- Material wastage
- Homeless with a loss of countless property
- Unhealthy environment
- Question 23. What are the applications of the modulus of elasticity?
- Construction of the bridge, pillars, and beams, etc.
- Used to test the deformation property of the new materials
- measure the stress-strain relationship
- Calculates and measures the deformation response of the materials especially under working loads and weight
- Question 24. Which is the most prominent tower in the World?
Burj Khalifa stands the tallest in the world with a length of 828m. It contains 163 floors.
- Question 25. What is the largest concrete dam in the World?
It is the Grand Coulee Dam.
- Question 26. Mention what is the composition of a landfill?
For a secure landfill, there are four critical elements
• The bottom liner
• A leachate collection system
• A cover
• Natural hydrogeologic settings
- Question 27. List out some of the software used in the construction sector to estimate cost and monitoring expenses?
• Tally System
• Maxwell System
• Premier construction software
• Construction partner, etc.
- Question 28. What are the different types of foundations?
Three main types of foundation are
• Basement: In this, a basement is prepared first on top of it building is constructed
• Crawl space: A crawl space is a raised foundation, it is built above the ground, just allowing enough space to crawl underneath
• Slab: In this foundation, concrete is directly poured into the pit made in the ground.
- Question 29. What are the common ways of demolition?
• Pressure Bursting
- Question 30. Explain what is a floating slab foundation?
A floating concrete foundation is a type of mat foundation that consists of a hollow mat formed by a grid of thick reinforced concrete walls between two thick reinforced concrete slabs.
- Question 31. Explain what is flashing?
Flashing is an extended construction that is done to seal and protect joints in a building from water penetration. Flashing is installed at the intersecting roofs, walls, and parapets.
- Question 32. Mention different types of roof systems?
• Slate or Stone roofs
• Wood shingle roofs
• Metal roofing systems
- Question 33. Explain what is Critical Path Method (C.P.M)?
Critical Path Method is a strategy and method of representing the respective tasks and activities involved in the construction through a symbolic diagram.
- Question 34. What are demising walls?
The demising wall is used for the boundary that separates your land or house from a neighbor’s house
- Question 35. What is a labor and material payment bond?
It is a bond between the owner and the main contractor. Where a contractor guarantees for payment to the owner if he fails to pay for all labor, materials, equipment’s or services in accordance with the contract.
- Question 36. Explain what is progress payment?
It is a payment done by the owner to the contractor; it is a difference between the completed work and material stored and a pre-determined schedule of values or unit costs.
- Question 37. Explain what is structural frames or systems?
Structural frames are a load-bearing assembly of beams and columns on a foundation. Normally, the columns and beams are generally fabricated off-site and assembled on site.
- Question 38. Explain what is zoning permit?
A zoning permit is a document issued by a governing urban authority permitting land to be used for a particular purpose.
- Question 39. Explain what is the release of lien?
Release of lien is a written document executed by an individual or firm supplying labor, material, or professional service on a project, which releases his mechanic’s lien against the project property.
- Question 40. Explain what is 1/8 on the architect ruler denotes?
1/8 on the ruler is in fact a scale that converts 1/8 inch on to the drawing to 1 foot. It would represent a drawing with a scale of 1/8”= 1 foot.
- Question 41. List out some of the software programs that can be useful for architects?
• 3DS Max
• Adobe creative suites
• Microsoft office
• Digital Media
- Question 42. Explain what are the skills required to become an architect?
• Conceptual understanding of designing models
• Basic knowledge of computer and architect related software programs
• Engineering ability
• Business aptitude
• Legal knowledge
• Designing 3D models
- Question 43. What things architects have to take care of before starting any project?
• Whether the owner has proper planning permission
• Whether the building has a certain listed grade approved
• Knowledge of building appliances and materials that includes the cost as well
• Need to take environmental factors into consideration
- Question 44. Explain how you can use different dimension tools in CAD? What are the different dimensions available?
If you are using CAD and want to use dimension tools, then go to CAD>Dimensions and you can have access to a wide range of dimensions like
• Manual dimensions
• Interior dimensions
• Auto exterior dimensions
• Auto interior dimensions
• End to end dimensions
• Point to point dimensions
• Angular dimensions
• Display temporary dimensions
• Moving objects using dimensions
- Question 45. Explain how you can turn off the display for dimension in CAD?
The display of your dimensions can be turned off in CAD for that you have to go under Floor Plan View and follow the following steps
• In floor plan active, select Tools – Display Options
• Scroll down to the dimensions- Automatic and Dimensions- Manual layers and remove the checkmarks from the Disp column
• When you click OK, the display of the dimensions in your plan will be turned off
- Question 46. Which are the top apps for your civil engineer?
Some of the best apps
• Photoshop Express
• Magic Plan
• AutoCAD Ws