Chemin Enviro Systems Hardware Engineer Interview Questions and Answers

Q1. Logical question
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Q2. Introduce yourself
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Q3. About the projects
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Q1. Knowledge about PLC, DCS,SCADA.
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Q2. Knowledge about Induastrial Automation.
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Coding test over phone call. Interviewer would ask questions, we have to come up with logic/ pseudo code

Q1. Object oriented programming concepts.
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Q1. Tell me something about yourself?
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I am a highly motivated and experienced sales engineer with a passion for technology and customer satisfaction.
• I have over 5 years of experience in sales engineering, working with clients in various industries such as healthcare, finance, and manufacturing.

• I am skilled in presenting technical solutions to clients and addressing their concerns and needs.

• I am a team player and enjoy collaborating with colleagues to achie...read more
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Q2. Why do you want to switch from current company?
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Looking for new challenges and growth opportunities.
• Current company has limited growth opportunities.

• Seeking a more challenging role that aligns with my skills and experience.

• Interested in exploring new industries and technologies.

• Want to work for a company with a strong culture and values.
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Q1. Last company details
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Q2. Family background
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Q1. Statuary compliances?
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Q2. Welfare? Roles and responsibilities at office?
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Q1. About Boiler working, principles
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Q2. Rankin cycle explanation, working
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Rankine cycle is a thermodynamic cycle used in power plants to convert heat into mechanical work.
• Rankine cycle is a thermodynamic cycle that converts heat into mechanical work.

• It consists of four main components: a pump, a boiler, a turbine, and a condenser.

• The cycle starts with the pump sending liquid water to the boiler where it is heated and converted into high-pressure steam.

• The high-pressure steam then enters the ...read more
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Q1. What are AI, AO, DI, DO signals
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AI, AO, DI, DO signals are types of signals used in instrumentation engineering.
• AI stands for Analog Input and refers to signals that are continuous and can take any value within a range.

• AO stands for Analog Output and refers to signals that are continuous and can be controlled to produce a specific output value.

• DI stands for Digital Input and refers to signals that are discrete and can only take on two values, typical...read more
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Q2. What are interlocks for Turbine
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Interlocks are safety mechanisms that prevent the turbine from operating under unsafe conditions.
• Interlocks are designed to prevent damage to the turbine and ensure safe operation.

• They can be mechanical, electrical, or software-based.

• Examples include overspeed protection, low oil pressure shutdown, and high exhaust temperature shutdown.

• Interlocks are critical components of turbine control systems and must be properly m...read more
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Q3. Drum level maintenance in 3element and single element
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Drum level maintenance differs in 3-element and single element systems.
• In 3-element systems, the drum level is controlled by measuring the water level, steam flow, and feedwater flow.

• In single element systems, only the water level is measured.

• Maintenance in 3-element systems involves checking and calibrating the sensors for each parameter.

• Maintenance in single element systems involves checking and calibrating the water...read more
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Q4. Procedure of Control valve Troubleahooting
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Control valve troubleshooting involves identifying and resolving issues with the valve's performance.
• Check for any leaks or blockages in the valve

• Inspect the valve's positioner and actuator for any faults

• Verify that the valve is receiving the correct signals from the control system

• Check the valve's calibration and adjust if necessary

• Perform a functional test to ensure proper operation
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Q5. Programming skills of Emerson DCS
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Emerson DCS programming skills are essential for a Senior Instrumentation Engineer.
• Proficiency in programming languages such as ladder logic, function block, and sequential function chart

• Experience in configuring and programming Emerson DeltaV DCS systems

• Knowledge of Emerson AMS Device Manager software for device configuration and diagnostics

• Ability to troubleshoot and debug DCS programming issues

• Familiarity with indus
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