Larsen & Toubro Limited Senior EHS Officer Interview Questions and Answers for Experienced

Q1. What is Work permit system?
Ans. 
A work permit system is a formal written system used to control high-risk work activities to ensure safety of workers and the workplace.
• Work permit systems outline the procedures and requirements for carrying out specific high-risk tasks.

• They are used to assess risks, implement controls, and communicate safety measures to workers.

• Examples include hot work permits for welding, confined space entry permits, and electrica...read more
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Q2. What is confined space?
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Confined space is an area that is not designed for continuous occupancy, has limited entry and exit points, and may have hazardous conditions.
• Confined spaces are typically small and enclosed, making it difficult to enter and exit.

• These spaces may have poor ventilation, limited lighting, or contain hazardous substances.

• Examples of confined spaces include storage tanks, silos, tunnels, and sewers.
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Q3. Oxygen level in confined space?
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Oxygen level in confined spaces should be monitored to ensure safety of workers.
• Oxygen levels in confined spaces should be maintained between 19.5% and 23.5%.

• Low oxygen levels can lead to dizziness, confusion, and even loss of consciousness.

• High oxygen levels can increase the risk of fire and explosion.

• Monitoring equipment such as oxygen meters should be used to regularly check oxygen levels in confined spaces.
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Q4. Behaviour Issue
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Part-1 consist of General aptitude & Part-2 consist of Technical question related to Civil Engineering

Q1. Purely technical no other questions other than technical question relevant to the post we are applying
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Q1. Salary Expectations & other stuffs
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Q1. What is the difference between qa and qc
Ans. 
QA focuses on preventing defects while QC focuses on identifying and fixing defects.
• QA is a process-oriented approach that ensures quality is built into the product from the beginning

• QC is a product-oriented approach that involves testing and inspecting the product to identify defects

• QA is proactive while QC is reactive

• QA involves continuous improvement while QC involves finding and fixing defects

• Examples of QA activit...read more
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Q2. Why you choose QC department
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I chose the QC department because of my passion for ensuring quality and my attention to detail.
• I have always been meticulous and detail-oriented, which are essential qualities for a QC engineer.

• I enjoy the process of identifying and resolving quality issues to improve overall product performance.

• I find satisfaction in ensuring that products meet or exceed customer expectations.

• I believe that quality control plays a cr...read more
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Q3. How you tackle NCR situation
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I investigate the root cause, propose corrective actions, and ensure implementation to prevent recurrence.
• Identify the root cause of the NCR

• Propose corrective actions to prevent recurrence

• Ensure implementation of corrective actions

• Document the NCR and corrective actions taken

• Communicate with relevant stakeholders
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Q4. What is the procedure of soil and concrete strength testing
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Soil and concrete strength testing involves several steps including sample collection, preparation, and testing.
• Collect soil and concrete samples from the site

• Prepare the samples for testing by drying and crushing them

• Perform compression tests on concrete samples to determine strength

• Perform triaxial or unconfined compression tests on soil samples to determine strength

• Record and analyze the test results to ensure compl
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Q5. How you convince your client representative on a critical situation
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To convince a client representative on a critical situation, it is important to communicate effectively, provide evidence and solutions, and build trust.
• Listen actively to the client representative's concerns and understand their perspective.

• Clearly explain the critical situation, its impact, and potential risks.

• Present evidence such as test results, data analysis, or documentation to support your claims.

• Offer alternat...read more
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Q1. What are the major parts in power transformer?
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The major parts in a power transformer include the core, windings, insulation, cooling system, and tap changer.
• Core: Provides a path for magnetic flux and is usually made of laminated steel sheets.

• Windings: Consist of primary and secondary coils that transfer electrical energy.

• Insulation: Prevents electrical leakage and ensures safety.

• Cooling System: Keeps the transformer within operating temperature limits, commonly u...read more
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Q1. What do you want to switch ?
Ans. 
I want to switch electrical circuits and devices.
• Switching electrical circuits to control the flow of electricity.

• Switching electrical devices on or off.

• Switching between different power sources.

• Switching between different modes or settings of electrical equipment.

• Switching between different electrical connections or configurations.
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Q1. What are the tests you have done
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I have conducted various tests to ensure quality and compliance.
• Functional testing to verify that the software meets the specified requirements

• Regression testing to ensure that new changes do not introduce defects in existing functionality

• Performance testing to evaluate the system's responsiveness and stability under different loads

• Usability testing to assess the user-friendliness and intuitiveness of the software

• Secur...read more
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Q2. How much you expect to get?
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Q3. How to check quality of cement?
Ans. 
The quality of cement can be checked through various tests and inspections.
• Perform physical tests like fineness, setting time, and soundness.

• Conduct chemical tests to analyze the composition and properties.

• Check for consistency, compressive strength, and durability.

• Inspect the packaging and labeling for proper identification.

• Verify compliance with relevant standards and specifications.
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Q4. What do you check beam,columns and slab casting?
Ans. 
In beam, column, and slab casting, QA QC engineers check for proper reinforcement, formwork, concrete mix, curing, and dimensions.
• Check reinforcement placement and spacing to ensure it meets design requirements.

• Inspect formwork for proper alignment, stability, and adequate support.

• Verify the concrete mix design and ensure proper pouring and compaction techniques are followed.

• Monitor curing methods to ensure the concret...read more
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Q1. How much you get in your present company?
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Q2. When you will join in our site?
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