AECOM Interview Questions, Process, and Tips

Q1. About previous projects
Ans. Explained about previous works and roles
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Q2. Asked about skills
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Q3. Expected salary
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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?
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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?
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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?
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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. I was interviewed for Transmission & Distribution Profile Q1 - Please walk us through your CV and your roles in the various projects ? Q2 - Tell us about design calculations of EHV Cables. How you come up ...read more
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Q2. Q15 - Concepts of HVDC & Offshore Connections
Ans. 
HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.
• HVDC is more efficient than AC transmission over long distances

• Offshore connections require specialized equipment and installation techniques

• HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland

• Examples of HVDC projects incl...read more
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Q1. Tell us about yourself and your interests outside Engineering
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Q2. Can you give an example of a group project you have done?
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Q1. Sewerage System - Design Standards
Ans. 
Design standards for sewerage system
• Design standards vary based on location and regulations

• Consideration should be given to factors such as population density, topography, and soil type

• Standards may include minimum pipe diameter, slope, and depth

• Examples of design standards include ASCE 15 and EPA guidelines
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Q2. Load distribution method
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Q1. Process of agl conduiting, light fixing coordinates marking etc
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