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I applied via Job Portal and was interviewed before Apr 2022. There were 2 interview rounds.
PCB stands for Printed Circuit Board, a board made of non-conductive material with conductive tracks for electronic components.
PCB is used to mechanically support and electrically connect electronic components using conductive pathways.
It is made of non-conductive material like fiberglass, with copper tracks to connect components.
PCBs can be single-sided, double-sided, or multi-layered depending on the complexity of th...
Active components require a power source to operate, while passive components do not.
Active components require an external power source to function, such as transistors and integrated circuits.
Passive components do not require an external power source, such as resistors and capacitors.
Active components can control the flow of electricity, while passive components simply store or dissipate energy.
Examples of active comp...
Resistance is the opposition to the flow of current in a circuit, while a capacitor stores and releases electrical energy.
Resistance limits the flow of current, while a capacitor stores and releases charge.
Resistance is measured in ohms, while capacitance is measured in farads.
Examples of resistors include carbon film resistors, while examples of capacitors include ceramic capacitors.
Resistance dissipates energy in the...
SMT stands for Surface Mount Technology, a method of electronic component assembly where components are mounted directly onto the surface of a printed circuit board (PCB).
SMT components are smaller and lighter than through-hole components, allowing for higher component density on PCBs.
SMT components are typically mounted using solder paste and reflow soldering techniques.
SMT technology allows for automated assembly pro...
I applied via Company Website and was interviewed in Jun 2023. There were 2 interview rounds.
I applied via AmbitionBox and was interviewed in Dec 2023. There was 1 interview round.
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 the voltage of an alternating current (AC) signal.
They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.
The primary winding receives electrical energy from a power source, while t...
Current is the flow of electric charge through a conductor.
Current is measured in amperes (A).
It is caused by the movement of electrons or ions.
Current can be either direct current (DC) or alternating current (AC).
DC flows in one direction, while AC periodically changes direction.
Examples of current include the flow of electricity in a circuit or the movement of ions in an electrolyte solution.
Speed control methods of induction motor include voltage control, frequency control, and rotor resistance control.
Voltage control: By varying the voltage supplied to the motor, the speed can be controlled.
Frequency control: By changing the frequency of the power supply to the motor, the speed can be adjusted.
Rotor resistance control: By inserting external resistance in the rotor circuit, the speed can be regulated.
Vari...
L&T Construction interview questions for designations
I applied via LinkedIn and was interviewed in Nov 2023. There were 3 interview rounds.
What's my Name ,My qualification,My Knowledge,My Experience,etc
Get interview-ready with Top L&T Construction Interview Questions
I applied via Company Website and was interviewed before Aug 2020. There were 3 interview rounds.
Top trending discussions
posted on 20 Nov 2024
I applied via Company Website and was interviewed in Oct 2024. There were 2 interview rounds.
posted on 12 Oct 2024
I applied via campus placement at PSG College of Technology, Coimbatore and was interviewed in Sep 2024. There were 3 interview rounds.
General knowlegde, Basic Aptitude, Domain Technical MCQ
Genx vs Genz, Altitude and comparsion
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
I applied via Company Website and was interviewed in Apr 2023. There were 2 interview rounds.
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.
It is named after Georg Simon Ohm, a German physicist who first formulated this law.
This law is applicable to all types of circuits, including DC and AC circuits.
It is use...
DOL starter stands for Direct-On-Line starter, used to start motors by directly connecting them to the power supply.
DOL starter is the simplest and most common type of motor starter.
It directly connects the motor to the power supply without any intermediate starting method.
It provides full voltage to the motor during starting, which can cause high inrush current.
DOL starters are suitable for small to medium-sized motor...
APFC PANEL stands for Automatic Power Factor Correction Panel, used to maintain power factor in electrical systems.
APFC PANEL automatically monitors and corrects the power factor of electrical systems.
It helps in reducing electricity bills by maintaining a high power factor.
APFC PANELs are commonly used in industries and commercial buildings.
They consist of capacitors that are switched on and off based on the load requ...
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