Vcs Quality Services Senior Engineer Interview Questions and Answers for Experienced

Basic question of aptitude

Q1. Details about Internship, project done in last semester/year. Basic question from Mass transfer and Heat Transfer.
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Q1. Question of refining operation, what is distillation, what is petcoke and its use. HR round is included. Strength and weakness.
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Sectional aptitude test like the CAT exam: LRDI, VARC and Aptitude

Topic based group discussion between 8 to 10 people on varied topics.

Q1. Final interview along with the HR and Technical Team based on chemical engineering concepts.
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Q2. Questions regarding solution chemistry? Questions regarding chemical technology field?
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Q1. How do you start and stop a boiler feed pump safely?
Ans. 
Starting and stopping a boiler feed pump requires careful procedures to ensure safety and efficiency.
• Check the pump and system for any leaks or damage before starting.

• Ensure that the boiler is at the correct pressure and temperature.

• Open the isolation valves to allow water flow to the pump.

• Start the pump using the control panel, monitoring for unusual noises.

• Once the pump is running, check the pressure gauges to ensure...read more
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Q2. What are common vacuum pump failures and their causes? How do you check for vacuum leaks in a system?
Ans. 
Common vacuum pump failures include mechanical wear, seal leaks, and motor issues, often leading to performance loss.
• Mechanical wear: Bearings and rotors can wear out over time, causing reduced efficiency.

• Seal leaks: Damaged or worn seals can lead to loss of vacuum, impacting system performance.

• Motor issues: Electrical failures or overheating can prevent the pump from operating correctly.

• Contamination: Particles or flu...read more
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Q3. How do you start and stop a CEP safely? What are the possible causes of cavitation in a CEP, and how can it be avoided?
Ans. 
Safe operation of a CEP involves careful start/stop procedures and understanding cavitation causes and prevention.
• Start the CEP gradually to avoid sudden pressure changes.

• Monitor system parameters like flow rate and pressure during startup.

• Stop the CEP by gradually reducing the load to prevent water hammer.

• Cavitation can occur due to low inlet pressure or high fluid velocity.

• To avoid cavitation, ensure adequate NPSH (N...read more
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Q4. If a blackout occurs in your plant, what immediate actions will you take?
Ans. 
In case of a blackout, immediate actions include assessing the situation, ensuring safety, and restoring power efficiently.
• Assess the situation: Check if the blackout is localized or widespread.

• Ensure safety: Activate emergency lighting and guide personnel to safe areas.

• Notify relevant personnel: Inform management and maintenance teams about the blackout.

• Check backup systems: Verify if backup generators are operational...read more
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Q1. Package discussion and accommodation discussion
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Q1. Where are you work and your present company.
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Q2. Operation department in NGSL at jharsuguda site
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Q1. Basic questions regarding past experiences.
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Q1. Questions based on JD and resume were asked by the panel of interviewers.
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