Dangote Oil Refining Company Refinery Operator Interview Questions and Answers

Q1. Technical mein kya sikha
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Q2. Gail vijaypur mein pump turbine ke bare mein kaise
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Q3. Pump me seal kese lagai jati hai
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Q4. Pump come maintenance kaise kiya jata hai
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Q5. Coupling ko fit Kiya jata
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Q6. Coupling kya Kam karti hai
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Q1. Power supply machine
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Q2. Electrical equipment
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Q3. T/F or DG Related
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Q4. Power supply related
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Q5. AC DC power supply related
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Q1. What are your technical certification how do they make you eligible for this job?
Ans. Here are some in-depth technical interview questions and samples answer that you can refer to for your technical job interview preparation:
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Q2. What steps do you take to keep yourself updated on evolving trends in the technical field
Ans. The purpose of this technical interview question is to assess your understanding of communicating over a network using the rest model for public APIs and soap for working in distributed enterprise environments.
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Q3. What interests pulled you up about this job?
Ans. I'm highly interested in joining as a programmer in this job
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Q1. Name some popular operating systems.
Ans. 
Popular operating systems include Windows, macOS, and Linux.
• Windows

• macOS

• Linux
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Q1. Would you lie for a company?
Ans. I will consider lying only in a situation where there is a possibility of losing the company's core values
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Q1. Why should we hire you?
Ans. I am a fresher but I have the required qualification that you are looking for.
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Q1. If you could start your life over, what would you change?
Ans. Even experience in life is a lesson in its way. I wouldn't change anything.
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Q1. Explain the different types of fit?
Ans. 
Different types of fit include clearance fit, interference fit, and transition fit.
• Clearance fit: parts are designed to have a gap between them, allowing for easy assembly and disassembly.

• Interference fit: parts are designed to be pressed or forced together, creating a tight and secure fit.

• Transition fit: parts have a small amount of overlap, creating a balance between clearance and interference fit.

• Examples include pi...read more
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Q2. Name the boiler that does not need a steam drum?
Ans. 
Benson Boiler is the boiler that does not need a steam drum.
• Benson Boiler is a high-pressure, drumless, water tube steam boiler

• It works on the principle of critical pressure

• It is used in thermal power plants for generating power

• It has a high thermal efficiency and can handle a wide range of fuel types
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Q3. Why would you use pneumatic?
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Pneumatics is used for its simplicity, reliability, and cost-effectiveness in various applications.
• Pneumatic systems are easy to install and maintain.

• They are reliable and have a long lifespan.

• Pneumatics are cost-effective compared to other systems.

• They are used in various applications such as manufacturing, transportation, and construction.

• Examples include pneumatic drills, air compressors, and pneumatic cylinders.
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Q1. What are various types of brakes ?
Ans. 
Various types of brakes include disc brakes, drum brakes, regenerative brakes, electromagnetic brakes, and hydraulic brakes.
• Disc brakes use calipers to squeeze brake pads against a rotor to slow or stop the vehicle.

• Drum brakes use shoes that press against the inside of a drum to slow or stop the vehicle.

• Regenerative brakes convert kinetic energy into electrical energy to recharge the battery.

• Electromagnetic brakes use ...read more
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Q1. How will you classify sliding contact
Ans. 
Sliding contact can be classified based on the type of motion and the nature of the surfaces in contact.
• Sliding contact can be classified as sliding, rolling, or twisting contact.

• Based on the nature of the surfaces in contact, sliding contact can be classified as dry or lubricated contact.

• Examples of sliding contact include the contact between brake pads and rotors, gears in a gearbox, and the contact between a piston ...read more
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Tell me about yourself and various question screening question why you want to join our company

Q1. Tell me about yourself, resume, projects
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Q1. About your self?
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Q2. Are you comfortable with office work? I am b tech students (cse) so mujhse pucha it ko chhod kar tum yha kyo ana chahti ho?
Ans. 
Yes, I am comfortable with office work as it aligns with my career goals and I have experience in it.
• I have completed internships in office settings and have experience with tasks such as data entry and report writing.

• I understand the importance of office work in achieving organizational goals and am willing to contribute my skills to the team.

• I am also open to learning new software and tools that may be required for t
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Q3. Last year project?
Ans. 
Developed a web-based inventory management system for a retail store.
• Used PHP and MySQL for backend development.

• Implemented a user-friendly interface using HTML, CSS, and JavaScript.

• Incorporated barcode scanning functionality for efficient inventory tracking.

• Conducted thorough testing and debugging to ensure system reliability.

• Received positive feedback from the client and increased their sales by 20%.
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Q4. Study background?
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Q5. About HPCL company?
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Q6. Kya bnati h ye company?
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Q7. Product of HPCL?
Ans. 
HPCL produces petroleum products for various industries and consumers.
• HPCL produces a range of petroleum products including petrol, diesel, LPG, aviation fuel, lubricants, and bitumen.

• These products are used by various industries such as transportation, aviation, power, and manufacturing, as well as by individual consumers.

• HPCL also produces specialty products such as jute batching oil, transformer oil, and marine fuel...read more
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Q1. Unit of resistance
Ans. 
The unit of resistance is ohm (Ω), named after German physicist Georg Simon Ohm.
• The unit symbol for resistance is Ω

• Resistance is measured using an ohmmeter

• 1 ohm is equal to 1 volt per ampere (V/A)
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Q2. Unit of current
Ans. 
The unit of current is Ampere (A)
• The unit of current is named after the French physicist Andre-Marie Ampere

• 1 Ampere is defined as the flow of 1 Coulomb of charge per second

• Commonly used prefixes for current include milliampere (mA) and microampere (μA)
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