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Breakers are electrical switches that protect circuits from overloading. Types include thermal, magnetic, and hybrid breakers.
Thermal breakers use a bimetallic strip to trip the switch when the temperature exceeds a certain level.
Magnetic breakers use an electromagnet to trip the switch when the current exceeds a certain level.
Hybrid breakers combine both thermal and magnetic mechanisms for more precise protection.
Mini...
Transformers are electrical devices that transfer energy from one circuit to another through electromagnetic induction.
Transformers work on the principle of electromagnetic induction
They have two coils, primary and secondary, which are wound around a magnetic core
When an alternating current flows through the primary coil, it creates a magnetic field which induces a voltage in the secondary coil
Transformers are classifi...
Knowledge of house wiring includes understanding electrical codes, wire types, circuit breakers, and safety precautions.
Understanding electrical codes and regulations
Knowledge of different wire types and their uses
Understanding circuit breakers and their functions
Safety precautions when working with electricity
Ability to read and interpret wiring diagrams
Knowledge of grounding and bonding
Familiarity with electrical too...
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I applied via Walk-in and was interviewed before Dec 2019. There were 3 interview rounds.
I applied via Walk-in and was interviewed in Oct 2022. There were 2 interview rounds.
I applied via Referral
I applied via Shine and was interviewed before Jan 2022. There were 2 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2023. There was 1 interview round.
Resistance values are often color coded on resistors to easily identify their resistance value.
Color coding is used on resistors to indicate their resistance value
The colors represent numbers according to a specific color code chart
The first two bands represent the first two digits of the resistance value, the third band represents the multiplier, and the fourth band represents the tolerance
For example, a resistor with...
The symbol of a diode is an arrow pointing towards a line, representing the flow of current in one direction only.
Arrow pointing towards a line
Flow of current in one direction only
I applied via Referral and was interviewed in Aug 2021. There was 1 interview round.
I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
Current is the flow of electric charge in a circuit.
Current is measured in Amperes (A)
It is the rate of flow of electric charge through a conductor
Direct current (DC) flows in one direction, while alternating current (AC) changes direction periodically
A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
Circuit breakers detect faults in the electrical system and interrupt the flow of electricity to prevent damage.
They consist of a switch mechanism and a tripping mechanism that activates when a fault is detected.
Circuit breakers can be reset manually or automatically after tripping.
Example...
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire (primary and secondary) wrapped around a core
Primary coil receives electrical energy and creates a magnetic field
Magnetic field induces a voltage in the secondary coil, transferring energy
Used in power distribution, voltage regulation, and electrical isolati...
I applied via Referral and was interviewed before Aug 2021. There was 1 interview round.
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