Larsen & Toubro Limited Technician Interview Questions, Process, and Tips

A train can run on single phase by using a single-phase AC traction system.

• Single-phase AC traction system uses a single-phase supply to power the train's motors.

• The system includes a converter to convert the single-phase AC supply to DC for the motors.

• Examples of trains using single-phase traction systems include light rail systems and some commuter trains.

Changing the capacitor wire of a fan can lead to malfunctioning of the fan or even damage to the fan motor.

• Incorrect wiring can cause the fan to not work properly or not work at all.

• Mismatched capacitor wire can damage the fan motor.

• It is important to follow the correct wiring diagram when replacing capacitor wires.

Electricity is the flow of electric charge, governed by principles like voltage, current, resistance, and Ohm's Law.

• Voltage (V): The electric potential difference, measured in volts. Example: A standard household outlet provides 120V.

• Current (I): The flow of electric charge, measured in amperes (A). Example: A light bulb may draw 0.5A.

• Resistance (R): The opposition to current flow, measured in ohms (Ω). Example: A resi...read more

Control panels and starters are essential for managing electrical systems in industries, ensuring safety and efficiency.

• Control Panels: Used for monitoring and controlling electrical equipment.

• Motor Starters: Devices that start and stop electric motors safely.

• Types of Control Panels: PLC panels, relay panels, and motor control centers.

• Types of Starters: Direct-on-line (DOL), star-delta, and soft starters.

• Example of Con...read more