Hitachi Energy Graduate Management Trainee Interview Questions and Answers

Apptitude quesitons and question related to your subject

Q1. What is Rankine cycle
Ans. 
Rankine cycle is a thermodynamic cycle used in steam power plants to convert heat into mechanical work.
• Rankine cycle involves four processes: compression, heating, expansion, and cooling.

• Steam is used as the working fluid in Rankine cycle.

• The cycle starts with the compression of the working fluid, followed by heating in a boiler to produce high-pressure steam.

• The high-pressure steam then expands through a turbine to pr...read more
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Q2. How heat is generated in steam power plant
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Heat is generated in a steam power plant through combustion of fuel to produce high temperature steam.
• Fuel such as coal, natural gas, or oil is burned in a boiler to produce heat

• The heat is used to boil water and produce high pressure steam

• The steam is then directed towards a turbine, where it expands and drives a generator to produce electricity
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Q1. All about internship related questions.
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Q2. About transformer
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Q1. Normal discussions
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Q1. What did u learn from ur internship? Draw the diagram of a power system from GS to consumers. Questions from major project. explain interconnected systems Explain underground cables and advantages over ove...read more
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The internship taught me about power systems, including the diagram from GS to consumers, interconnected systems, underground cables, corona discharge, smart power strips, and MCBs.
• Learned about the power system diagram from the generation source (GS) to consumers

• Understood the concept of interconnected systems and how different power systems are connected

• Explored the advantages of underground cables over overhead cabl...read more
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Q1. What are your plans for the future higher studies or not strengths and weakness r u up for a challenging job r u willing to learn and apply in the field
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I plan to pursue higher studies in the future to enhance my skills and knowledge. I am open to challenging job opportunities and eager to learn and apply new concepts in the field.
• Plan to pursue higher studies to enhance skills and knowledge

• Open to challenging job opportunities

• Eager to learn and apply new concepts in the field
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The aptitude tests included average questions from reasoning English and elementary maths.

The GD was very smooth everyone was given chance.

Q1. They asked about my vocational training and internship.
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Q2. They asked about my skills
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Q3. They asked about my position of responsibility
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Q4. They also asked some technical questions which were mainly basics
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It was an easy round normal questions was asked.

Q1. They asked about my self
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Q2. My goals and interests
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My goal is to become a skilled engineer and contribute to the growth of the company. My interests include learning new technologies and problem-solving.
• My goal is to gain experience and knowledge in the engineering field

• I am interested in learning new technologies and staying up-to-date with industry trends

• I enjoy problem-solving and finding innovative solutions to challenges

• I am committed to contributing to the growth
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Q3. Some technical questions
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Q4. What is different colors of wires represents
Ans. 
Different colors of wires represent different functions in electrical circuits.
• Black: hot wire

• White: neutral wire

• Green or bare copper: ground wire

• Red or blue: traveler wires in 3-way switches

• Yellow: switch leg for lighting circuits
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Q5. Types of the Transmission line
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Transmission lines are used to transmit electrical power from one place to another. There are mainly two types of transmission lines.
• The two types of transmission lines are overhead transmission lines and underground transmission lines.

• Overhead transmission lines are used for long-distance transmission of high voltage power.

• Underground transmission lines are used for short-distance transmission of low voltage power.

• Ove...read more
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Q6. Transmission cables types and ratings
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Transmission cables are used to transmit electrical power and signals over long distances.
• Types of transmission cables include overhead lines, underground cables, and submarine cables.

• Ratings of transmission cables depend on factors such as voltage, current, and temperature.

• Examples of transmission cable ratings include 230 kV, 400 kV, and 765 kV.

• Transmission cables are typically made of copper or aluminum conductors w...read more
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