Tractebel B Tech Civil Engineer Interview Questions and Answers

Q1. Explain Hydraulic
Ans. 
Hydraulic refers to the study of fluids in motion and the engineering applications of fluid mechanics.
• Hydraulic engineering involves the design and construction of structures that control the flow and pressure of liquids, such as dams, canals, and pipelines.

• Hydraulic systems use fluid pressure to generate, control, and transmit power, commonly found in machinery like hydraulic lifts and brakes.

• Hydraulic principles are ...read more
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Q1. Procedure of laying tile and granite
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The procedure of laying tile and granite involves preparing the surface, applying adhesive, laying the tiles/granite, grouting, and sealing.
• Prepare the surface by ensuring it is clean, level, and dry.

• Apply adhesive to the surface using a trowel, ensuring even coverage.

• Lay the tiles/granite starting from the center and working outwards in a pattern.

• Grout the tiles/granite by filling the gaps between them with grout and ...read more
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As per your cv details

Q1. What you have done in your site?
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Q2. What is your role in your site?
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Q3. Why i will hire you?
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Very basic level aptitude test and civil engineering subjects test.

Q1. Draw bending moment diagram of a fixed beam subjected to udl throughout the whole length.
Ans. 
Bending moment diagram of a fixed beam subjected to udl throughout the whole length.
• Calculate the reactions at the supports of the beam

• Determine the equation for bending moment at any point along the beam

• Plot the bending moment diagram with positive and negative values

• The bending moment will be maximum at the supports and zero at the midpoint of the beam
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Q2. Draw bending moment diagram of a 1-bay, 1-storey portal frame subjected to point load at the middle point of the column.
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Bending moment diagram of a 1-bay, 1-storey portal frame with point load at column middle.
• Calculate reactions at supports

• Determine internal forces at critical points

• Plot bending moment diagram using equations or software

• Identify maximum bending moment and its location
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Q3. What is 'M' in M-20 concrete?
Ans. 
M stands for mix design in M-20 concrete, indicating the compressive strength of the concrete mix.
• M-20 concrete is a mix design where 'M' represents the compressive strength of the concrete after 28 days of curing.

• The number '20' in M-20 concrete indicates the characteristic compressive strength of concrete in N/mm^2.

• Different grades of concrete have different compressive strength requirements, with M-20 being a common
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Q4. Which code is req for mix design?
Ans. 
IS 10262 is required for mix design in civil engineering.
• IS 10262 is the code for concrete mix design in India.

• It provides guidelines for proportioning of concrete ingredients based on strength and durability requirements.

• The code covers various aspects such as water-cement ratio, workability, and compressive strength.

• Mix design is crucial for ensuring the desired properties and performance of concrete.

• Following the co...read more
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Q5. What is the process of earthquake design of a multi storey building?
Ans. 
Earthquake design of a multi storey building involves analyzing seismic forces, selecting appropriate structural systems, and implementing design measures to ensure safety.
• Analyze seismic forces based on the building location and seismic zone

• Select appropriate structural systems such as reinforced concrete or steel frames

• Implement design measures like base isolation, dampers, and shear walls to enhance building's seism
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Q6. Process of design of one-way and two-way slab and their differences
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Design process of one-way and two-way slabs and their differences
• One-way slab design involves calculating bending moments and shear forces along one direction, typically supported on two opposite sides. Two-way slab design considers bending moments and shear forces in both directions, usually supported on all four sides.

• One-way slab design is simpler and more common in practice, while two-way slab design is more comple...read more
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Q7. Difference between dynamic and equivalent static method of earthquake design and analysis of multi storey building
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Dynamic method considers time history of earthquake while equivalent static method simplifies earthquake forces into equivalent static forces.
• Dynamic method analyzes building response to actual time history of earthquake ground motion.

• Equivalent static method simplifies earthquake forces into equivalent static forces based on simplified assumptions.

• Dynamic method is more accurate but computationally intensive, while eq...read more
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Q1. What difference between OPC 43&53 cement. What will happen if use 43 OPC instead 53 OPC for M35.
Ans. 
OPC 43 and 53 cement differ in their compressive strength. Using 43 OPC instead of 53 OPC for M35 concrete may result in lower strength.
• OPC 43 cement has a compressive strength of 43 MPa, while OPC 53 cement has a compressive strength of 53 MPa.

• The higher compressive strength of OPC 53 cement makes it more suitable for structural applications.

• Using OPC 43 cement instead of OPC 53 cement for M35 concrete may result in l...read more
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