AECOM Interview Questions, Process, and Tips

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.
Ans. 
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
Ans. 
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
Ans. 
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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Regarding RDSS Projects

Q1. Regarding BOQ of 11 KV & 33 KV Feeder Bifurcation
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Q2. Regarding Installation of DTR Structure with transformer
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Q3. Regarding 33/11 KV Augmented substation and installation of Power Transformer
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Q1. In Which field do you have knowledge of?
Ans. 
I have knowledge in the field of mechanical engineering.
• Mechanical engineering principles and concepts

• Design and analysis of mechanical systems

• Thermodynamics and fluid mechanics
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Q2. How much was your past salary in the company in which you were working
Ans. 
I am not comfortable disclosing my past salary from my previous company.
• It is not appropriate to discuss past salary during an interview

• Focus on the value I can bring to this new role

• Salary expectations should be based on the current market and the responsibilities of the new position
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Q1. How long did you work in your past company?
Ans. 
I worked at my past company for 3 years.
• Worked at past company for 3 years

• Started in entry-level position and was promoted twice

• Received Employee of the Year award in second year
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Q2. What salary do you expect in this company?
Ans. 
I expect a competitive salary that reflects my skills, experience, and the market rate for this position.
• Research the average salary range for Engineer 1 positions in the industry and location

• Consider your own qualifications, experience, and the value you bring to the company

• Be prepared to negotiate based on the company's offer and benefits package
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Q1. Concrete Quality
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Q2. Steel structure fabrication
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Q1. Salary discuss with last salary
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