GAIL Graduate Apprentice Interview Questions and Answers

Q1. Tell me about yourself
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Q2. Questions based on Experience
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Q3. Types of Pumps and question on specific pump operation
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Q4. General question on the company itself
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Q5. Why join BPCL if you had an experience
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Q1. Explain about hydrotreating and hydrocracking.
Ans. 
Hydrotreating and hydrocracking are two refining processes used to improve the quality of petroleum products.
• Hydrotreating involves the use of hydrogen and a catalyst to remove impurities such as sulfur, nitrogen, and metals from crude oil or other feedstocks.

• Hydrotreating helps to produce cleaner fuels with lower sulfur content, which is important for meeting environmental regulations.

• Hydrocracking is a more severe pr...read more
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Q2. Dew point and bubble point
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Civil engineering relates to the planning, design, construction, and maintenance of infrastructure projects.

Q1. 1. Tell me about yourself 2. Why are you applying for Job as it is only 1 year apprenticeship ? 3. What did you do after graduation ? 4. Questions related to Final Year Project and your hobbies
Ans. Give Honest answers to above questions. If are having gap after graduation then tell the honest reason about that. Answer for joining job must be positive regarding Job like to gain experience of working in PSU. Apprenticeship also helps in Shortlisting during HPCL Permanent Job recruitment(5% Marks for Shortlisting of Apprenticeship and 1 Year age relaxation)
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Q1. Questions as Given above
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Q1. Tell me about yourself?
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I am a recent graduate with a strong passion for learning and gaining practical experience in the field.
• Recent graduate with a degree in [field of study]

• Passionate about [specific area of interest]

• Seeking opportunities to apply theoretical knowledge in a practical setting

• Previous experience in [relevant internship or project]
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Q2. Prepare minimum 3 Favourite subjects
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Q3. Related to project and internship
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Q4. HR related questions at the last
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Q1. I am from electrical branch so he was asked me about electrical technical questions mainly from basic electrical or machine in interview I realised they asked simple basic questions and try to learn hard q...read more
Ans. Types of machine and why we use 3phase no 6 phase or 8 phase in transmission line
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Q2. What difference between earthing and neutral why we use neutral
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Earthing and neutral are both important components of electrical systems, but they serve different purposes.
• Earthing is the process of connecting electrical equipment and installations to the earth to prevent electric shock and protect against electrical faults.

• Neutral is a current-carrying conductor that completes the circuit and provides a return path for the current back to the source.

• Earthing is primarily for safet...read more
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Q1. What is principle of generator
Ans. 
The principle of a generator is based on electromagnetic induction, where a changing magnetic field induces an electric current in a conductor.
• Generators convert mechanical energy into electrical energy

• They work on the principle of electromagnetic induction

• A rotating coil within a magnetic field generates an electric current

• The direction of the current is determined by Fleming's right-hand rule
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Q2. What is current transformer
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A current transformer is a type of instrument transformer that is used to step down high currents to a lower, more manageable level for measurement or protection purposes.
• Current transformers are typically used in conjunction with ammeters, wattmeters, and protective relays.

• They have a primary winding that is connected in series with the circuit carrying the current to be measured, and a secondary winding that is conne...read more
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Q3. What is the principle of motor
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The principle of motor refers to the basic concept of how motors work to convert electrical energy into mechanical energy.
• Motors operate based on the principle of electromagnetic induction

• Electric current flowing through a wire creates a magnetic field

• This magnetic field interacts with other magnetic fields to produce motion

• Motors can be DC motors, AC motors, or stepper motors
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Q4. What is relationship between speed and frequency in motor
Ans. 
Speed and frequency in a motor are directly proportional to each other.
• Speed of a motor is directly proportional to the frequency of the power supply.

• Increasing the frequency of the power supply will increase the speed of the motor.

• Conversely, decreasing the frequency will decrease the speed of the motor.

• This relationship is important in controlling the speed of motors in various applications.
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Q5. Do you have any previous experience??
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Q6. What are the favorite subjects in your electrical engineering
Ans. 
My favorite subjects in electrical engineering are power systems, control systems, and electronics.
• Power systems: I enjoy studying the generation, transmission, and distribution of electrical power.

• Control systems: I find the design and analysis of control systems fascinating.

• Electronics: I am interested in learning about electronic circuits and devices.
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Q7. Why do you want to join??
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Q8. Types of cables and explain
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Types of cables include coaxial, twisted pair, fiber optic, and HDMI cables.
• Coaxial cable: used for cable television and internet connections

• Twisted pair cable: commonly used for Ethernet networks

• Fiber optic cable: transmits data using light pulses

• HDMI cable: used to connect audio and video devices
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