Exel Rubber Electrical Engineer Interview Questions and Answers

Q1. Positive Isolation
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Q2. Turbine Rolling Black out condition
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Turbine rolling black out condition refers to a situation where a turbine experiences a sudden loss of power and stops rotating.
• Turbine rolling black out condition can occur due to various reasons such as mechanical failures, electrical faults, or grid disturbances.

• Examples of causes include turbine blade damage, generator malfunction, or grid overload.

• Proper maintenance and monitoring of the turbine system can help pr...read more
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Q3. Delta T Generator winding temperature
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Delta T refers to the temperature difference between the generator winding and its surroundings.
• Delta T is an important factor in determining the health and efficiency of a generator.

• Monitoring the generator winding temperature helps prevent overheating and potential damage.

• Maintaining a proper Delta T ensures optimal performance and longevity of the generator.

• For example, if the generator winding temperature is 80°C a...read more
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Q4. Bearing vibration
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Q5. Condenser types
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Q6. Vaccum drop reason
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Vacuum drop can be caused by leaks in the system, clogged filters, or a malfunctioning vacuum pump.
• Leaks in the system can cause a drop in vacuum pressure.

• Clogged filters can restrict airflow and lead to a decrease in vacuum levels.

• A malfunctioning vacuum pump may not be able to maintain the desired vacuum pressure.

• Check for leaks by using a leak detector or soapy water.

• Inspect and clean filters regularly to prevent cl...read more
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Q7. CT fan & gear box ratio
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Pawan kumar sir Quality head

Sandeep Singh plant head

Q1. Quality engineer
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Q2. Quality information
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Q3. Incoming quality
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Q4. Layout information
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Q5. Sample information
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Q1. My field technical questions
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Q2. Education and general knowledge
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Q3. Education general knowledge
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Q1. Generator protection
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Q2. Transformer maintenance
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Q1. Types of chiller, refrigerant
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There are two types of chillers: air-cooled and water-cooled. Common refrigerants include R-22, R-134a, and R-410A.
• Air-cooled chillers use air to remove heat from the refrigerant, while water-cooled chillers use water.

• R-22 is a commonly used refrigerant, but it is being phased out due to its harmful effects on the environment.

• R-134a is a more environmentally friendly refrigerant, but it is less efficient than R-22.

• R-41...read more
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