DEC Infra Assistant Engineer Interview Questions and Answers

Q1. What is professional experience ?
Ans. 
Professional experience refers to the work history and skills gained through employment in a specific field or industry.
• Professional experience includes the knowledge and expertise acquired through practical work in a particular profession.

• It can involve previous jobs, internships, volunteer work, or any other relevant work experience.

• Employers often value professional experience as it demonstrates a candidate's abilit...read more
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Q2. How many years you had worked at site?
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I have worked at site for 3 years, gaining experience in construction and project management.
• I have 3 years of experience working at various construction sites.

• During my time at site, I have gained hands-on experience in construction techniques and project management.

• I have successfully completed multiple projects within the given timeline and budget constraints.
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Q3. What you had analyzed during your serving period?
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Q4. No thanks a lot
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Interview on electrical knowledge therory and basics

Q1. Instrumentation related questions
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Q1. Excavation safety, EHS management, Lifting & Erection safety
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Q1. Six sigma steps and application.
Ans. 
Six Sigma is a data-driven methodology for improving processes by reducing defects and variations.
• Define: Identify problem, goals, and customer requirements.

• Measure: Collect data on current process performance.

• Analyze: Use statistical tools to identify root causes of defects.

• Improve: Implement solutions to address root causes.

• Control: Monitor process performance to sustain improvements.

• Examples: GE, Motorola, and Ford ...read more
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Q2. What is project management?
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Project management is the process of planning, organizing, and overseeing the completion of a project within specific constraints.
• Involves defining project goals, creating a timeline, allocating resources, and monitoring progress.

• Requires effective communication, problem-solving skills, and the ability to adapt to changes.

• Examples include software development projects, construction projects, and marketing campaigns.
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Q3. What is project portfolio management?
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Project portfolio management is the centralized management of a group of projects to achieve strategic objectives.
• Involves prioritizing, planning, executing, and monitoring a group of projects

• Helps organizations align projects with strategic goals

• Allows for resource optimization and risk management

• Examples include creating a portfolio of IT projects to improve efficiency or a portfolio of construction projects to expan
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Q4. Phases of the project?
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The phases of a project typically include initiation, planning, execution, monitoring and controlling, and closing.
• Initiation: Defining the project, setting goals, and obtaining approval.

• Planning: Creating a detailed project plan, including timelines, resources, and budget.

• Execution: Carrying out the plan and completing the project deliverables.

• Monitoring and Controlling: Tracking progress, managing changes, and ensuri...read more
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Q5. Which NDT method used in your work?
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Ultrasonic Testing (UT) is the NDT method used in my work.
• UT uses high frequency sound waves to detect internal flaws in materials

• It is commonly used in industries like aerospace, oil and gas, and manufacturing

• Examples of UT equipment include ultrasonic flaw detectors and probes
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Q6. What is welding and its type?
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Welding is a process of joining two or more metal pieces together by melting and fusing them.
• There are several types of welding techniques, including MIG welding, TIG welding, arc welding, and spot welding.

• Welding can be done using different heat sources such as gas flame, electric arc, laser, or ultrasound.

• The choice of welding technique depends on the materials being joined, the thickness of the materials, and the de
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Q7. Procedure of checking fitup?
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Checking fitup involves verifying the alignment and positioning of components before welding.
• Inspecting the joint for gaps or misalignment

• Using measuring tools like calipers or gauges

• Ensuring proper fit of parts before welding

• Checking for any defects or imperfections

• Verifying dimensions and angles according to specifications
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Q8. Explain the procedure of hydrotest?
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Hydrotest is a procedure used to test the strength and integrity of pressure vessels or pipelines by filling them with water or another liquid.
• The vessel or pipeline is filled with water or another liquid at a specified pressure.

• The pressure is held for a specified duration to check for leaks or deformations.

• After the test, the liquid is drained and the vessel or pipeline is inspected for any issues.

• Hydrotest is common...read more
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Q9. Difference between power piping and process piping?
Ans. 
Power piping is used in power plants to transport steam, water, and other fluids at high temperatures and pressures, while process piping is used in industrial facilities to transport various fluids for processing.
• Power piping is typically found in power plants, including nuclear, fossil fuel, and renewable energy plants.

• Process piping is used in industrial facilities such as chemical plants, refineries, and manufactur...read more
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Q10. In 304L , L stand for?
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Q11. What is sensitization in the Austenitic stainless steel?
Ans. 
Sensitization in Austenitic stainless steel is the process where chromium carbides form at the grain boundaries, leading to reduced corrosion resistance.
• Sensitization occurs when the steel is heated in the temperature range of 450-850°C, causing chromium carbides to precipitate at the grain boundaries.

• This depletion of chromium at the grain boundaries makes them susceptible to corrosion, especially in environments cont...read more
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Q12. Why TIG generally used to weld SS material?
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TIG welding is generally used for SS material due to its ability to produce high-quality, clean welds with minimal distortion.
• TIG welding provides precise control over the heat input, resulting in less distortion in the stainless steel material.

• TIG welding produces clean and aesthetically pleasing welds on stainless steel, making it ideal for applications where appearance is important.

• The inert gas shield in TIG weldin...read more
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Q13. How much piping did you in your work place?
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Q1. What is your current CTC?
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Q2. What is your expected CTC?
Ans. 
My expected CTC is based on my experience, skills, and industry standards.
• My expected CTC is in line with industry standards for a Senior Engineer role.

• I have taken into consideration my years of experience and expertise in the field.

• I am open to negotiation based on the overall compensation package offered by the company.
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Q3. Is there any relative on this company?
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Q4. What is your notice period?
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Q5. Is there any chances to join within 15 days?
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