Hitachi Energy Electrical GET Interview Questions and Answers

Q1. Explain Ohm's law
Ans. 
Ohm's Law states that voltage equals current times resistance, forming a fundamental relationship in electrical circuits.
• Ohm's Law formula: V = I × R, where V is voltage, I is current, and R is resistance.

• Example: If a circuit has a voltage of 10V and a resistance of 5Ω, the current is 2A (10V = 2A × 5Ω).

• Ohm's Law applies to linear resistors, where the resistance remains constant regardless of voltage and current.

• It is...read more
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Q2. Which type of insulation provide to the tables
Ans. 
Tables in electrical applications often use insulation materials to prevent electrical conduction and ensure safety.
• Common insulation materials include PVC, rubber, and fiberglass.

• PVC is widely used for its durability and resistance to moisture.

• Rubber provides excellent flexibility and is often used in portable tables.

• Fiberglass is used for high-temperature applications due to its thermal resistance.
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Q1. Basic Technical Question
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Understanding the basics of electrical circuits is crucial for any electrical engineer.
• An electrical circuit consists of a power source, conductors, and a load.

• Ohm's Law (V = IR) is fundamental for calculating voltage, current, and resistance.

• Series circuits have the same current flowing through all components, while parallel circuits have the same voltage across each component.

• Example: In a series circuit with a 12V b...read more
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Q2. Do u have driving license??
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Yes, I possess a valid driving license, which allows me to operate vehicles safely and responsibly.
• I obtained my driving license after completing a comprehensive driving course.

• I have experience driving various types of vehicles, including cars and motorcycles.

• I prioritize safety and adhere to traffic regulations while driving.

• My driving license has been renewed regularly, ensuring it remains valid.
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Q3. Other co-circular acitivites
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Co-circular activities involve collaborative efforts in electrical engineering, enhancing learning and innovation.
• Group projects in circuit design, where teams collaborate to create efficient electrical systems.

• Workshops on renewable energy technologies, fostering teamwork and knowledge sharing.

• Hackathons focused on developing innovative electrical solutions, encouraging creativity and problem-solving.

• Internships that ...read more
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Medium level of maths+reasoning+English

Q1. Basic+ moderate knowledge of power system
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Q1. Basic information of yours
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Test included appti tech and reasoning

Q1. Tell me about your self
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Q1. Transformers, induction motor
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Q2. Final year project
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Q1. About distribution system
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Q2. Power system line
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Apptitude along core knowledge was tested through online test

Q1. Polychometric questionnaires was asked
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Q1. Personal interview on my core domain
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Q2. Final year project was asked
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Good and understanding

Q1. Name and introduction
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Q2. Hobbies and technical skills
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Q1. How many protections are there for transformer?
Ans. 
Transformers require multiple protection methods to ensure safe and efficient operation, preventing damage from faults.
• Overcurrent Protection: Prevents damage from excessive current, often using fuses or circuit breakers.

• Differential Protection: Detects internal faults by comparing currents entering and leaving the transformer.

• Bushing Insulation Protection: Monitors the insulation condition of transformer bushings to p...read more
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Q2. Types of Earthing
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