Benninger AG Interview Questions and Answers

Q1. Cnc machine related questions
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Q2. Process planning questions
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Q1. Qualification, address, family members
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Q1. Basic brief about rolls and responsibility
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Q1. Technical knowledge about as per on job requirement
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Q1. Hr discussion regarding work culture and company profile
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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. 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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Q1. What is transformer
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A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil receives electrical energy and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used in power distribution, voltage regulation, and isolation

• Examples include step-up tran...read more
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Q2. Protection of generator
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Protection of generator involves implementing various measures to prevent damage during abnormal operating conditions.
• Implementing overcurrent protection to prevent damage from excessive current flow

• Installing differential protection to detect internal faults

• Using reverse power protection to prevent generator from acting as a motor

• Applying overvoltage and undervoltage protection to safeguard against voltage fluctuation...read more
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Q1. Discuss about your family
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