Bihar State Power Holding Company Diploma Trainee Engineer Interview Questions and Answers

Q1. Power plants supply working
Ans. 
Power plants supply electricity to meet the demand of consumers and industries.
• Power plants generate electricity through various methods such as burning fossil fuels, nuclear reactions, or renewable sources like wind or solar power.

• The electricity generated is transmitted through power lines to homes, businesses, and industries.

• Power plants play a crucial role in ensuring a reliable supply of electricity to meet the ne...read more
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Q1. What is electricity, what is circuit
Ans. 
Electricity is the flow of electric charge through a conductor, while a circuit is a closed loop through which electricity can flow.
• Electricity is the flow of electrons through a conductor

• A circuit is a closed loop that allows electricity to flow

• Circuits can contain components like resistors, capacitors, and inductors

• There are two types of circuits - series circuits and parallel circuits

• Examples of circuits include sim...read more
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Q2. What is solar cell, wahtndkkslallkajjnnejsz
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Medium Reasoning and Math. English

Q1. Electro magnetic induction law. Kirchhoaf law. Low voltage & High voltage circuit breaker. Kw & Kva difference. Power factor. Reactive power & apparent power. Isolatar. 33/11 kva substation. Bridge rectifi...read more
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Basics of arithmetic operations and aptitude tests

Q1. Basic electrical engineering questions
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Q2. Explain the generation of electricity
Ans. 
Electricity is generated by converting mechanical energy, chemical energy, or solar energy into electrical energy.
• Mechanical energy is converted into electrical energy through generators in power plants.

• Chemical energy is converted into electrical energy through batteries or fuel cells.

• Solar energy is converted into electrical energy through photovoltaic cells.

• Electricity can also be generated through nuclear reactions...read more
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About substation details, Components working

Preparation of interview with best regards

Q1. What are the of Renewable energy
Ans. 
Renewable energy is energy that is generated from natural resources that are replenished over time.
• Renewable energy sources include solar, wind, hydro, geothermal, and biomass

• Renewable energy is sustainable and does not deplete natural resources

• Renewable energy helps reduce greenhouse gas emissions and combat climate change

• Renewable energy technologies are becoming more efficient and cost-effective

• Examples of renewable...read more
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Q2. What is the break horse power
Ans. 
Break Horse Power (BHP) is the power output of an engine measured at the output shaft without any power losses.
• BHP is the actual power delivered by an engine to do useful work

• It is measured at the output shaft of the engine

• It does not include any power losses due to friction, heat, or other factors

• BHP is often used to compare the power output of different engines

• It is calculated using the formula: BHP = (Torque x RPM)
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Q3. What are the types of valves used in industry
Ans. 
Valves used in industry include gate, globe, ball, butterfly, diaphragm, and check valves.
• Gate valves are used for on/off control of flow

• Globe valves are used for regulating flow

• Ball valves are used for quick shut-off

• Butterfly valves are used for low-pressure applications

• Diaphragm valves are used for corrosive or abrasive fluids

• Check valves are used to prevent backflow
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There firstly was conducted aptitude test in this test we got 25 techanical question, 10 general English language questions and 10 general aptitude questions.

Q1. What is the use of star delta connection in electrical ?
Ans. 
Star delta connection is used to start high power motors with reduced starting current and torque.
• Reduces starting current and torque

• Used for high power motors

• Improves motor efficiency

• Reduces voltage drop during starting

• Reduces stress on motor windings

• Example: Starting a large induction motor in an industrial setting
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Q2. What Kinds of Cables Are Used for Power Transmissions?
Ans. 
Different types of cables are used for power transmission, including overhead lines, underground cables, and submarine cables.
• Overhead lines are commonly used for power transmission over long distances.

• Underground cables are used in urban areas where overhead lines are not feasible.

• Submarine cables are used for power transmission between islands or across bodies of water.

• Different types of cables, such as aluminum cabl...read more
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Q3. Mention what is the difference between generator and alternator ?
Ans. 
Generators and alternators are both electrical machines that convert mechanical energy into electrical energy, but they differ in their construction and working principles.
• Generators produce direct current (DC) while alternators produce alternating current (AC).

• Generators use a commutator and brushes to convert mechanical energy into electrical energy, while alternators use slip rings and brushes.

• Generators are typical...read more
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We got a topic for group discussion , " what is profit and loss to remove article 370 from kasmir " .

Q1. What is your interest
Ans. 
My interest lies in the field of electrical engineering, specifically in designing and implementing innovative solutions.
• Passionate about exploring new technologies and advancements in electrical engineering

• Enjoys problem-solving and finding efficient solutions to complex electrical engineering challenges

• Interested in designing and optimizing electrical systems for maximum efficiency and sustainability

• Fascinated by the...read more
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Q2. Why we will select you for our company
Ans. 
I have a strong educational background and relevant experience in the electrical engineering field.
• I have completed a diploma in electrical engineering, which has provided me with a solid foundation in the subject.

• I have gained practical experience through internships and projects, where I have successfully applied my knowledge to solve electrical engineering problems.

• I have a strong understanding of electrical systems...read more
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