Listenlights Electrical Technician Interview Questions and Answers

Q1. What is density if steel
Ans. 
The density of steel is around 7.85 g/cm³.
• Density is the measure of mass per unit volume.

• Steel is a metal alloy composed of iron and carbon.

• The density of steel varies depending on its composition and temperature.

• The density of steel is higher than that of most other materials.

• The density of steel is commonly used in engineering and construction applications.
Answered by AI
Add your answer
Q2. Asked to draw drawing of a component
Add your answer

What was the project you have done

Q1. Which losses in transformers?
Ans. 
The losses in transformers include copper losses and iron losses.
• Copper losses occur due to the resistance of the transformer windings.

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

• Copper losses can be reduced by using larger conductor sizes or improving the cooling system.

• Iron losses can be minimized by using high-quality magnetic materials and optimizing the...read more
Answered by AI
View 3 more answers
Q2. How many types of substion ?
Ans. 
There are several types of substations, including transmission, distribution, collector, and switching substations.
• Transmission substations are used to step up or down voltage for long-distance transmission.

• Distribution substations are used to distribute power to local areas.

• Collector substations are used to collect power from renewable energy sources.

• Switching substations are used to switch power between different tra...read more
Answered by AI
View 1 more answer
Q3. Two types of substion indoor and outdoor substion
Ans. 
There are two types of substations - indoor and outdoor substations.
• Indoor substations are located inside buildings or structures.

• Outdoor substations are located outside and are exposed to the elements.

• Indoor substations are typically smaller and require less maintenance.

• Outdoor substations are larger and require more maintenance due to exposure to weather conditions.

• Both types of substations play a crucial role in the
Answered by AI
Add your answer
Q4. Whoes motors uses in fan ?
Ans. 
The motors used in fans are typically single-phase induction motors.
• Fans typically use single-phase induction motors.

• These motors are designed to operate on a single-phase AC power supply.

• They are commonly used in ceiling fans, table fans, and pedestal fans.

• The motor rotates the fan blades, creating airflow and cooling effect.

• Some fans may also use brushless DC motors for improved energy efficiency.
Answered by AI
View 2 more answers

Q1. Family details& verify
Add your answer
Q2. Electrical& documents
Add your answer

Q1. Types ho single phase motor
Ans. 
Types of single phase motors include split-phase, capacitor start, shaded pole, and permanent split capacitor motors.
• Split-phase motor: commonly used in household appliances like fans and blowers

• Capacitor start motor: used in high starting torque applications like air compressors

• Shaded pole motor: used in small appliances like refrigerators and fans

• Permanent split capacitor motor: used in HVAC systems and pumps
Answered by AI
Add your answer
Q2. Types of transfermar
Ans. 
Transfermars are devices used to transfer electrical power or signals from one circuit to another.
• Types include transformers, capacitors, inductors, and transmission lines

• Transformers transfer electrical power between circuits through electromagnetic induction

• Capacitors store and release electrical energy

• Inductors store energy in a magnetic field

• Transmission lines transfer electrical signals over long distances
Answered by AI
Add your answer