L&T Construction Junior Engineer Electrical Interview Questions and Answers

Transformer Testing
Transformer protection
Relay
CT
Breker
HT & LT Panel
Moter IR&WR & PI
Moter Name Plet
Earthing

Q1. Present Company
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Q2. Your Present Sailri
Ans. 
My current salary is competitive for a junior engineer position in the electrical field.
• My current salary is in line with industry standards for junior engineers in the electrical field.

• I am satisfied with my current salary and feel it reflects my skills and experience.

• I have received positive feedback on my performance which may have contributed to salary increases.

• I am open to discussing salary expectations for a new...read more
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It's basic level of questions you don't have panic give it with positive attitude.questions are asked from time and work, coding decoding, basic verbal questions and profit loss

General knowlegde, Basic Aptitude, Domain Technical MCQ

Genx vs Genz, Altitude and comparsion

Q1. Components of Transformer
Ans. 
Components of a transformer include core, windings, and insulation.
• Core: Provides a path for magnetic flux

• Windings: Primary and secondary coils for inducing voltage

• Insulation: Prevents short circuits and ensures safety
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Q2. Question based on series and parallel resistance
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Q1. What is CT and PT
Ans. 
CT stands for Current Transformer and PT stands for Potential Transformer. They are used in electrical systems for measurement and protection purposes.
• CT is used to measure current in high voltage circuits by stepping down the current to a safe level for measurement.

• PT is used to measure voltage in high voltage circuits by stepping down the voltage to a safe level for measurement.

• Both CT and PT are essential components...read more
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Q2. What is DTC structure
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DTC structure stands for Direct Torque Control structure, a control method used in AC motor drives for precise torque and speed control.
• DTC structure is a control technique used in AC motor drives to directly control torque and flux without the need for a separate speed controller.

• It is based on the principle of controlling the torque and flux by selecting the appropriate voltage vectors in the motor.

• DTC structure offe...read more
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Q3. Use of LA, AB switch
Ans. 
LA, AB switch is used in electrical engineering to switch between two different signal sources or destinations.
• LA, AB switch is commonly used in audio and video equipment to switch between different inputs or outputs.

• It allows for easy switching between two different signal sources or destinations without having to physically disconnect and reconnect cables.

• The switch typically has two positions - one for each signal s...read more
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30 questions in 30 minutes question from machine and power system

Q1. Questions from transformer and 3 phase synchronous machine and from internship
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