Lakshya Powertech Limited Electrical GET Interview Questions and Answers

Test included appti tech and reasoning

Q1. Tell me about your self
Add your answer

Q1. Transformers, induction motor
Add your answer
Q2. Final year project
Add your answer

Medium level of maths+reasoning+English

Q1. Basic+ moderate knowledge of power system
Add your answer

Q1. Basic information of yours
Add your answer

Good and understanding

Q1. Name and introduction
Add your answer
Q2. Hobbies and technical skills
Add your answer

Q1. How many protections are there for transformer?
Add your answer
Q2. Types of Earthing
Add your answer

Q1. What are the type of Transformers
Ans. 
Transformers can be classified into different types based on their construction, purpose, and voltage levels.
• Based on Construction: Shell type, Core type, Berry type

• Based on Purpose: Power transformer, Distribution transformer, Instrument transformer

• Based on Voltage Levels: Step-up transformer, Step-down transformer, Auto transformer
Answered by AI
Add your answer
Q2. Which materials are used for providing electrical insulation
Ans. 
Materials used for electrical insulation include rubber, plastic, glass, ceramic, and mica.
• Rubber

• Plastic

• Glass

• Ceramic

• Mica
Answered by AI
Add your answer

Smartphone advantages and disadvantages

Q1. What are power systems?
Ans. 
Power systems are networks of electrical components used to generate, transmit, and distribute electricity.
• Power systems consist of power generation sources such as power plants or renewable energy sources.

• They also include transmission lines to carry electricity over long distances.

• Distribution systems deliver electricity to homes, businesses, and other end users.

• Power systems may also include substations, transformer...read more
Answered by AI
Add your answer
Q2. What are Transformers?
Ans. 
Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.
• Transformers consist of two coils of wire, known as the primary and secondary windings, wrapped around a core made of iron or steel.

• They are used to increase or decrease the voltage of an alternating current (AC) in electrical power applications.

• Examples of transformers include power transf...read more
Answered by AI
Add your answer

Basic reasoning questions with easy difficulty

Q1. Diode zener corona effect ferranti effect
Add your answer
Q2. Powered system basics faults system
Add your answer

Online aptitude test was easy. Questions were asked on electrical only.

Q1. Interview starts from basics of electrical. Questions were centered around generators and transformers. They test your basic electrical knowledge. No cross questioning and all direct questions
Add your answer
Q2. Types of rotors in generators
Ans. 
Types of rotors in generators include salient pole rotor and cylindrical rotor.
• Salient pole rotor has projecting poles with concentrated windings, used in low-speed applications.

• Cylindrical rotor has distributed windings and is used in high-speed applications.

• Other types include wound rotor and squirrel cage rotor.

• Wound rotor has three-phase windings connected to slip rings, used in variable speed applications.

• Squirrel...read more
Answered by AI
Add your answer
Q3. What is star delta Starter
Ans. 
Star delta starter is a type of reduced voltage starter used for starting high power motors.
• Consists of two contactors - one for star connection and one for delta connection

• Reduces starting current and torque on the motor

• Commonly used in industrial applications for motors above 5 HP
Answered by AI
Add your answer
Q4. What are the types of transformer losses
Ans. 
Types of transformer losses include copper losses, iron losses, and stray losses.
• Copper losses: Also known as I^2R losses, occur in the copper windings of the transformer due to resistance.

• Iron losses: Also known as core losses, occur in the transformer core due to hysteresis and eddy currents.

• Stray losses: Occur due to leakage flux and imperfect magnetic coupling between the windings.

• Examples: An example of copper los...read more
Answered by AI
Add your answer
Q5. Working principle of generator
Ans. 
A generator works on the principle of electromagnetic induction to convert mechanical energy into electrical energy.
• Generators use a magnetic field and a conductor to create a flow of electrons, generating electricity.

• When the conductor moves through the magnetic field, it induces a current in the conductor.

• This current is then collected and transferred through wires to power electrical devices.

• Examples of generators i...read more
Answered by AI
Add your answer