Sigma Engineered Solutions Operations Associate Interview Questions and Answers

Q1. What is the reason for Bearing Failure
Ans. 
Bearing failure can be caused by factors such as improper lubrication, contamination, overloading, misalignment, and poor installation.
• Improper lubrication can lead to increased friction and wear on the bearing surfaces.

• Contamination from dirt, debris, or moisture can cause abrasion and corrosion, leading to premature failure.

• Overloading the bearing beyond its capacity can cause excessive stress and fatigue.

• Misalignmen...read more
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Q2. What is the Gearbox
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The gearbox is a mechanical device that transmits power from the engine to the wheels of a vehicle, allowing for different speeds and torque ratios.
• The gearbox contains gears of different sizes that mesh together to change the speed and torque of the vehicle.

• It is typically located between the engine and the driveshaft.

• Gearboxes can be manual or automatic, with manual gearboxes requiring the driver to shift gears manua...read more
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Q3. What is Difference between PLC and Scada
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PLC is a hardware device that controls processes, while SCADA is a software system that monitors and controls processes.
• PLC is a programmable logic controller used to control industrial processes.

• SCADA is a supervisory control and data acquisition system used to monitor and control processes.

• PLC is hardware-based, while SCADA is software-based.

• PLC is typically used for controlling specific tasks within a process, while...read more
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Q4. What is the full form of PLC and Scada
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PLC stands for Programmable Logic Controller and Scada stands for Supervisory Control and Data Acquisition.
• PLC is a hardware device used to control industrial processes.

• Scada is a software system used for monitoring and controlling processes in industries.

• PLC and Scada are often used together in industrial automation systems.

• Example: PLC can control the operation of a conveyor belt in a manufacturing plant, while Scada...read more
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Q5. What is Vivrofeeder and its working
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Vivrofeeder is a device used in biotechnology for automated feeding of cell cultures in bioreactors.
• Vivrofeeder is designed to provide nutrients and maintain optimal conditions for cell growth in bioreactors.

• It helps in reducing manual labor and ensuring consistent feeding schedules.

• Vivrofeeder can be programmed to dispense specific amounts of nutrients at set intervals.

• Examples of nutrients dispensed by Vivrofeeder in...read more
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Q6. What is the Full form HPP in SCR
Ans. 
HPP in SCR stands for High Pressure Pump.
• HPP is a crucial component in a Selective Catalytic Reduction (SCR) system.

• It is responsible for pumping the diesel exhaust fluid (DEF) into the exhaust stream to reduce harmful emissions.

• Examples of HPP brands include Bosch, Delphi, and Cummins.
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Q7. Which types of Belt
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There are various types of belts used in engineering, such as V-belts, timing belts, flat belts, and conveyor belts.
• V-belts are commonly used for power transmission in machinery.

• Timing belts are used to synchronize the rotation of the crankshaft and camshaft in an engine.

• Flat belts are used for conveying loads over long distances.

• Conveyor belts are used for moving materials in industrial settings.
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Q1. Foundry process
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Q2. TPM implementation
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Q1. What is the current application you are working?
Ans. 
I am currently working on implementing a new CRM system to streamline customer interactions and improve efficiency.
• Implementing a new CRM system

• Streamlining customer interactions

• Improving operational efficiency
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Q2. Have you know about Power BI reporting features?
Ans. 
Yes, Power BI reporting features include interactive visualizations, customizable dashboards, and data exploration tools.
• Power BI offers a wide range of visualization options such as bar charts, pie charts, and maps.

• Users can create interactive dashboards to monitor key metrics and KPIs in real-time.

• Power BI allows for data exploration through features like drill-down, filtering, and sorting.

• Users can schedule automate...read more
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Q1. Self introduction and tell something about your old profile tell your CTC
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Q1. Tell me something about your old profile
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Q2. Which profile did you work on
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Q3. Will ask about that profile and what your company makes
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Q4. After that you ask about the profile for which you are being hired.
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Q5. Some technical questions related to your profile
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Q6. What is your current CTC in hand?
Ans. 
I am currently earning a salary of INR 15 lakhs per annum.
• My current CTC in hand is INR 15 lakhs per annum.

• This includes my base salary, bonuses, and other benefits.

• I am open to discussing compensation for this role based on the responsibilities and expectations.

• I am also willing to negotiate based on the overall package offered.
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Q1. Technical questions
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Q2. About yourself and basics of engineering
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Self intro,on c,c++,sql

Q1. Plant heat rate
Ans. 
Plant heat rate is a measure of how efficiently a power plant converts fuel into electricity.
• Plant heat rate is typically measured in British thermal units (BTUs) per kilowatt-hour (kWh).

• A lower heat rate indicates higher efficiency, as less fuel is needed to produce the same amount of electricity.

• Factors affecting heat rate include the type of fuel used, the age and condition of the plant's equipment, and operating co...read more
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Q1. What are the different emission norms
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Emission norms are regulations that set limits on the amount of pollutants that can be released into the environment.
• Emission norms vary by country and region

• They typically cover pollutants such as carbon monoxide, nitrogen oxides, particulate matter, and sulfur dioxide

• Examples of emission norms include Euro standards in Europe, Bharat Stage norms in India, and Tier standards in the United States

• Emission norms are beco...read more
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Q2. How does focus on green energy is likely to impact traditional business
Ans. 
Focus on green energy will disrupt traditional businesses and create new opportunities.
• Traditional businesses that rely on fossil fuels will face challenges as the demand for green energy increases.

• New businesses will emerge to meet the demand for green energy, creating new opportunities.

• Companies that adapt to the shift towards green energy will have a competitive advantage.

• Industries such as transportation, energy pr...read more
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