Wind World Junior Engineer - Maintenance Interview Questions and Answers

Question related to electrical and mental ability

Q1. Tell me about your self, what is transformer, Tell me about your BE Project, What is resistance, capacitor, Generator And so on
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Q2. What is transformer
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core.

• Step-up transformers increase voltage levels, while step-down transformers decrease voltage levels.

• Transf...read more
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Q3. What is resistance
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Resistance is the opposition to the flow of electric current.
• Resistance is measured in ohms (Ω).

• It is caused by the collisions of electrons with atoms in a conductor.

• Higher resistance leads to lower current flow.

• Resistance can be affected by factors like material, length, and temperature.

• Examples of high resistance materials include rubber and glass.

• Examples of low resistance materials include copper and silver.
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Q4. What is generator
Ans. 
A generator is a device that converts mechanical energy into electrical energy.
• Generators are commonly used in power plants to generate electricity

• They can also be used as backup power sources in case of power outages

• Generators can be powered by various sources such as gasoline, diesel, natural gas, or renewable energy sources like wind or solar

• They work on the principle of electromagnetic induction
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Q5. What is capacitor
Ans. 
A capacitor is an electronic component that stores and releases electrical energy in a circuit.
• Capacitors are used to filter out noise in electronic circuits.

• They can also be used to store energy in flash cameras.

• Capacitors are measured in farads, with smaller values denoted in microfarads or picofarads.
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Q1. About transformer protection and shut down process ....Etc
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Q2. How Buchholz relay works?
Ans. 
Buchholz relay is a protective device used in oil-filled transformers to detect and prevent faults.
• It is installed between the transformer tank and conservator tank.

• It detects the presence of gas or oil flow in the transformer oil.

• It operates on the principle of gas collection and oil surge.

• It sends an alarm signal to the control room in case of any fault.

• It helps in preventing major faults and damage to the transforme
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About relationship,Problems on age

GD on Line operation , Shutdown of ICT

Q1. What is the process de-ashing the from esp to silo.
Ans. 
De-ashing process from ESP to silo involves several steps.
• The ash is collected in hoppers located at the bottom of the ESP.

• The ash is then transported to the silo using a pneumatic conveying system.

• The ash is stored in the silo until it can be disposed of properly.

• Regular maintenance of the ESP and pneumatic conveying system is necessary to ensure efficient de-ashing.

• Proper safety measures must be taken during the de-a
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Q2. What is the capacity of esp hoppers.
Ans. 
The capacity of ESP hoppers varies depending on the size and model of the equipment.
• ESP hoppers can range from a few hundred cubic feet to several thousand cubic feet in capacity.

• The capacity can also depend on the type of material being collected in the hopper.

• It is important to regularly monitor and maintain the hopper to prevent overfilling and potential equipment damage.
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Q1. I will pay you only this.
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Q1. Hydraulic. Pneumatic
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Q2. Pump. gearbox . Bearings
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Q1. What is gear box and it's type
Ans. 
A gear box is a mechanical device used to increase or decrease the speed or torque of a motor. Types include spur, helical, bevel, and worm gearboxes.
• Gear box is a mechanical device that transmits power from one part of a machine to another.

• It is used to increase or decrease the speed or torque of a motor.

• Types of gear boxes include spur, helical, bevel, and worm gearboxes.

• Spur gearboxes have straight teeth and are use...read more
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Q2. What is preventive maintenance
Ans. 
Preventive maintenance is a proactive approach to maintenance that involves regularly scheduled inspections, repairs, and replacements to prevent equipment failure.
• Regularly scheduled inspections to identify potential issues before they become major problems

• Replacing worn out parts before they fail

• Cleaning and lubricating equipment to prevent breakdowns

• Updating software and firmware to ensure optimal performance

• Example...read more
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Q3. Future of Wind sector in renewable energy
Ans. 
The future of the wind sector in renewable energy looks promising with advancements in technology and increasing global demand for clean energy.
• Continued growth in wind energy capacity worldwide

• Technological advancements leading to more efficient wind turbines

• Decreasing costs of wind energy production

• Integration of wind power with energy storage solutions for better grid stability

• Government support and policies promoti...read more
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Q1. What is motor and MCB.
Ans. 
A motor is a device that converts electrical energy into mechanical energy, while MCB stands for Miniature Circuit Breaker used for electrical protection.
• Motor is a machine that converts electrical energy into mechanical energy

• MCB is a Miniature Circuit Breaker used for electrical protection

• Motors are commonly used in various applications such as fans, pumps, and conveyor belts

• MCBs are designed to automatically switch ...read more
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Q2. Define the types of motor divice.
Ans. 
Types of motor devices include AC motors, DC motors, stepper motors, and servo motors.
• AC motors: commonly used in household appliances and industrial applications

• DC motors: used in battery-operated devices and automotive applications

• Stepper motors: used in precision positioning applications

• Servo motors: used in robotics and automation for precise control
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Q1. Preventive maintenance related
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Q2. Gear box related
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Q3. Generator related
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Q4. Yaw drive backless gap setting related
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Q5. Generator alignment related
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Q6. Tower toque related
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Q7. Electrical error rectification related
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