Vishnu Chemicals Interview Questions, Process, and Tips

Q1. How much Experience
Ans. 
I have 10 years of experience in software engineering, specializing in backend development and system architecture.
• 10 years of experience in software engineering

• Specialize in backend development and system architecture

• Worked on projects involving scalability and performance optimization
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Q2. Do you have any supervisor license
Ans. 
No, I do not have a supervisor license.
• I do not possess a supervisor license at the moment.

• I have not pursued obtaining a supervisor license in my career.

• My focus has been on technical expertise rather than supervisory roles.
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Q1. How to test of motors
Ans. 
Testing of motors involves various methods to ensure functionality and performance.
• Performing insulation resistance tests to check for any electrical faults

• Conducting load tests to measure the motor's performance under different conditions

• Checking for abnormal noise or vibrations during operation

• Inspecting the motor for any physical damage or wear

• Using thermography to detect overheating issues
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Q2. What is transformer safety relay's
Ans. 
Transformer safety relays are devices used to protect transformers from faults and overloads.
• Transformer safety relays monitor the electrical parameters of a transformer, such as current, voltage, and temperature.

• They can trip the transformer offline in case of a fault to prevent damage.

• Some common types of transformer safety relays include overcurrent relays, differential relays, and temperature relays.
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Q1. What is color of neutral and ground wire ?
Ans. 
Neutral wire is typically white or gray, while ground wire is typically green or bare copper.
• Neutral wire is usually white or gray in color.

• Ground wire is typically green or bare copper.

• In some cases, ground wire may also be green with a yellow stripe.

• It is important to always follow local electrical codes when identifying wire colors.
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Q2. What is silica gel in transformer ?
Ans. 
Silica gel in transformers is used as a drying agent to absorb moisture and prevent the formation of harmful gases.
• Silica gel is a desiccant that absorbs moisture from the air to keep the transformer dry.

• It helps prevent the formation of harmful gases like hydrogen and carbon monoxide, which can degrade the transformer insulation.

• Silica gel is typically placed in a breather to absorb moisture as air enters and exits th...read more
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Q3. Circuit digram of ground and motorised CB ?
Ans. 
A ground and motorized circuit breaker diagram includes components like ground connection, motorized mechanism, and control circuit.
• Ground connection is typically represented by a symbol resembling three horizontal lines connected to a point.

• Motorized circuit breaker includes a motorized mechanism for opening and closing the circuit.

• Control circuit is used to operate the motorized mechanism of the circuit breaker.

• Examp...read more
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Group questions and answers

Q1. Taxation and Commercial
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