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Power Grid Corporation of India Graduate Apprentice Interview Questions and Answers
Power Grid Corporation of India Graduate Apprentice Interview Experiences
1 interview found
Anonymous
Selected
I applied via Company Website and was interviewed in Aug 2023. There was 1 interview round.
(1 Question)
- Q1. Where are you from and how many family member are there. What does your father do ? Where you want to be posted for apprenticeship ?
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4 Questions
- Q1. Explain the parameters of transmission line ?
- Ans.
Parameters of transmission line include resistance, inductance, capacitance, and conductance.
Resistance: opposition to the flow of current
Inductance: ability to store energy in a magnetic field
Capacitance: ability to store energy in an electric field
Conductance: ability to conduct electric current
Examples: coaxial cable, waveguide, twisted pair cable
- Q2. What is Hysteresis curve ?
- Ans.
Hysteresis curve is a graphical representation of the relationship between magnetic field strength and magnetization of a material.
It shows the lag between the magnetic field and the magnetization of a material.
It is used to study the magnetic properties of materials.
It is commonly used in the design of magnetic circuits and devices.
Examples include transformer cores, magnetic storage devices, and electric motors.
The s...
- Q3. Why and which type of transformer do we use to reduce power loss during transmission?
- Ans.
We use step-up transformers to reduce power loss during transmission by increasing voltage and decreasing current.
Step-up transformers increase voltage and decrease current, which reduces power loss during transmission.
This is because power loss is proportional to the square of the current, so reducing current reduces power loss.
For example, power is transmitted over long distances at high voltages (e.g. 500 kV) to red...
- Q4. Explain Power Factor?
- Ans.
Power factor is the ratio of real power to apparent power in an AC circuit.
Power factor is a measure of how efficiently electrical power is being used.
It ranges from 0 to 1, with 1 being the most efficient.
A low power factor can result in higher energy costs and equipment damage.
Capacitors can be used to improve power factor.
Power factor is important in industries where large amounts of electrical power are used.
Interview Preparation Tips
Experience: First shortlisting is CPI based.
General Tips: • The company has different selection criteria's for different category.
• You must thoroughly study their site, it will make very good impression on them.
• You must give your interview in a way that they must think you will definitely join it.
Skills: Power Systems,
College Name: IIT- Kanpur
Selected
I applied via latest gov jobs and was interviewed in Oct 2023. There were 3 interview rounds.
Aptitude and reasoning
Discussion about social media
(1 Question)
- Q1. Mechanical questions
Selected
I applied via Company Website and was interviewed in Feb 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Regarding Final year project Basics of Power electronics Nasics of machines
- Q2. Basics question on EEE
(1 Question)
- Q1. Regarding active particiapation in project and question on coding
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Selected
I applied via Walk-in and was interviewed in Nov 2023. There was 1 interview round.
(1 Question)
- Q1. What is pv call.
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Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Apr 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Mostly Powerplant releted, some basic electrical, some on personal intererst and hobbies
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Interview Questionnaire
1 Question
- Q1. How we can increase efficiency of boiler ?
- Ans.
Efficiency of a boiler can be increased by improving insulation, optimizing combustion, and regular maintenance.
Improve insulation to reduce heat loss
Optimize combustion by adjusting air-to-fuel ratio and using efficient burners
Regular maintenance to clean and repair components
Use economizers to recover waste heat
Upgrade to high-efficiency boilers
Implement energy management systems to monitor and control boiler operati
I applied via Company Website and was interviewed before Nov 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Technical questions
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I applied via Company Website and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. Pulling Sub Stesan Experience
- Ans.
Pulling sub-stesan experience
Sub-stesan refers to a subset of a larger system or process
Pulling sub-stesan experience means extracting relevant information from a smaller part of a system
This experience can be useful in identifying and solving specific quality issues
Examples include analyzing data from a specific production line or testing a particular component of a product
Interview Preparation Tips
(2 Questions)
- Q1. What is branch of pass out BE
- Ans.
The branch of pass out BE refers to the specialization or field of study in which the individual completed their Bachelor of Engineering degree.
The branch of pass out BE can vary depending on the university or institution.
Some common branches of pass out BE include Computer Science, Mechanical Engineering, Electrical Engineering, Civil Engineering, etc.
The branch determines the specific knowledge and skills acquired du...
- Q2. What is work of mcc breaker
- Ans.
MCC breaker is a device used in electrical systems to protect motors and other electrical equipment from overcurrents.
MCC breaker stands for Motor Control Center breaker.
It is a type of circuit breaker specifically designed for use in motor control centers.
The main function of an MCC breaker is to protect motors and other electrical equipment from overcurrents.
It automatically trips and interrupts the flow of electrici...
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Power Grid Corporation of India Interviews By Designations
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Field Engineer
209
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Field Supervisor
85
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Graduate Apprentice Trainee
65
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Electrical Engineer
63
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Associate Engineer
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