Yokogawa Electrical Design Engineer Interview Questions and Answers

Q1. Protection of drives & Plc . Switchgear selection, logistics automation
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Q1. Communication skills
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30min test from core subject

Usual GD on a relevant topic, everyone gets the opportunity to talk. Make relevant points and stick on to your opinion.

Q1. Complex technical questions from core subjects, application level questions should be expected.
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Q1. MR+HR round combined.
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About power system control system

Present trends and tgey willgive 10 min to think and note down

Q1. About resume get good knowledge of what you have put in resume
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Q2. And basic electricals
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Q1. Question on Autocad
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Q2. Question on Automatic Transfer Switch
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Q3. Typer of Automatic Transfer switch
Ans. 
Automatic Transfer Switches are devices used to automatically switch power sources in case of a power outage.
• Types of automatic transfer switches include open transition, closed transition, and delayed transition.

• Examples of automatic transfer switch manufacturers include Generac, Eaton, and Schneider Electric.

• Automatic transfer switches are commonly used in backup power systems for critical facilities like hospitals, ...read more
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Q4. Purge command, layers
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Q5. Load bank related questions
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Q1. Power factor correction
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Q2. Working of circuit breaker
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Q1. What is your work Nature
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Q2. Describe your technical knowledge
Ans. 
I possess extensive knowledge in electrical design, including circuit analysis, power systems, and compliance with industry standards.
• Proficient in circuit design using software like AutoCAD and MATLAB.

• Experience in power distribution systems, ensuring efficiency and reliability.

• Knowledge of industry standards such as IEC, IEEE, and NEC for compliance.

• Skilled in troubleshooting and optimizing electrical systems for per...read more
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Q1. How many types of chillers I have handled. Ans: Screw, Centrifugal & Scroll.
Ans. 
I have handled three types of chillers: Screw, Centrifugal, and Scroll.
• I have experience working with Screw, Centrifugal, and Scroll chillers.

• I am familiar with the maintenance and operation of these types of chillers.

• For example, I have worked with a 200-ton Centrifugal chiller at my previous job.
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Q2. What is surge in centrifugal chiller.
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Surge in centrifugal chiller is a condition where the flow of refrigerant is disrupted, causing a drop in pressure and flow rate.
• Surge can occur when the chiller is operating at low load or when there is a sudden change in load.

• It can cause damage to the compressor and other components of the chiller.

• Surge can be prevented by using surge control devices such as inlet guide vanes, variable speed drives, and surge tanks.

• ...read more
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