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Afcons Infrastructure
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I applied via Company Website and was interviewed in Jun 2023. There were 6 interview rounds.
Meetings with the project managers and department head with the clients.
Site validation in specification knowledge and procedures for field work is essential for QA QC Engineers.
Understanding the specifications and requirements for each site is crucial
Following established procedures and protocols for field work
Ensuring that all work is in compliance with industry standards and regulations
Regularly updating knowledge on new technologies and best practices
Documenting all validation processe
I am proficient in ASME and ISO standards.
I have extensive knowledge of ASME B31.3 and B31.1 codes for piping and pressure vessels.
I am also well-versed in ISO 9001 quality management system standards.
I have experience in implementing and maintaining quality control procedures based on these standards.
I am familiar with IS and BSEN standards, but not as proficient as ASME and ISO.
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I applied via Company Website and was interviewed before Oct 2021. There were 2 interview rounds.
Explaining tolerance of cover block, number of samples in cubes and soil filling in layers.
Tolerance of cover block is the permissible deviation from the specified dimension.
We take 03nos of pieces in cubes for steel testing to ensure accuracy and consistency.
Soil filling in maximum 300mm layer is done to ensure proper compaction and avoid settlement issues.
If 02 pieces pass or 01 falls within +10mm tolerance of cover block, it is considered a sample pass.
A tolerance of +10mm is allowed for cover block.
If 02 pieces pass or 01 falls within the tolerance limit, it is considered a sample pass.
If more than 01 piece falls outside the tolerance limit, it is considered a sample fail.
Afcons Infrastructure interview questions for designations
I applied via Walk-in and was interviewed in Jan 2021. There were 3 interview rounds.
A mix design for concrete with a compressive strength of 4000 psi.
Use Portland cement type I or II
Aggregate should be a mix of coarse and fine aggregates
Water-cement ratio should be between 0.4 to 0.6
Additives such as fly ash or silica fume can be used to improve strength and durability
Durability of concrete depends on various factors such as quality of materials, mix design, curing, and environmental conditions.
Durability is the ability of concrete to resist weathering action, chemical attack, and abrasion.
Factors affecting durability include water-cement ratio, air content, aggregate quality, and curing conditions.
Concrete with low water-cement ratio and proper curing can have a lifespan of over 10...
Get interview-ready with Top Afcons Infrastructure Interview Questions
Process piping works involve the installation, inspection, and maintenance of pipes used in industrial processes.
Process piping works include the design, fabrication, and installation of pipes for conveying fluids or gases in industrial settings.
QA QC engineers ensure that the piping systems meet the required standards and specifications.
Inspection and testing of process piping is done to check for leaks, pressure, and...
Bolts tightening procedure involves following a specific torque value and sequence to ensure proper fastening of bolts.
Check the torque value specified in the design or manual
Use a torque wrench to tighten the bolts to the specified value
Tighten the bolts in a specific sequence to ensure even distribution of load
Recheck the torque value after tightening all bolts
Record the torque value and sequence for future reference
Hydrotest and pneumatic test are methods used to test the integrity of piping systems.
Hydrotest involves filling the piping system with water and pressurizing it to a specified level for a set duration.
Pneumatic test involves filling the piping system with compressed air or nitrogen and pressurizing it to a specified level for a set duration.
Both tests are used to ensure that the piping system can withstand the expecte...
posted on 6 Feb 2024
Grade of concrete refers to its strength and durability.
Grade of concrete is determined by its compressive strength.
It is denoted by a number followed by 'M' (e.g. M20, M25).
Higher grade concrete has higher strength and durability.
Different grades of concrete are used for different purposes.
For example, M20 grade is commonly used for residential construction.
Mix design of concrete involves determining the proportions of ingredients to achieve desired properties.
Mix design is the process of determining the proportions of cement, water, aggregates, and admixtures in concrete.
It involves considering factors such as strength, workability, durability, and economy.
Various methods like the ACI method, British method, and DOE method can be used for mix design.
The mix design proces...
PWHT stands for Post Weld Heat Treatment, a process used to reduce residual stresses and improve the mechanical properties of welded joints.
PWHT involves heating the welded component to a specific temperature for a certain period of time, followed by controlled cooling.
The process helps to eliminate hydrogen cracking, improve toughness, and reduce distortion in the welded joint.
Common methods of PWHT include furnace he...
WQT range refers to the range of values for Water Quality Testing in a specific context.
WQT range can vary depending on the parameters being tested, such as pH, turbidity, dissolved oxygen, etc.
For example, the WQT range for pH in drinking water may be 6.5-8.5.
Monitoring and maintaining WQT range is crucial for ensuring safe and clean water supply.
Regular testing and analysis of water samples help in determining if the
LPT acceptance criteria ensure that the test results meet specified requirements.
Test results must meet specified requirements outlined in the acceptance criteria
Acceptance criteria should be clearly defined and documented
Criteria may include specific performance metrics or thresholds
Examples: minimum tensile strength, maximum elongation percentage
posted on 31 Dec 2024
I applied via LinkedIn and was interviewed before Dec 2023. There were 3 interview rounds.
Part-1 consist of General aptitude & Part-2 consist of Technical question related to Civil Engineering
2 Interview rounds
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