Wipro Interview Questions and Answers

SCADA stands for Supervisory Control and Data Acquisition, while RTU stands for Remote Terminal Unit. SCADA is a system used for monitoring and controlling industrial processes, while RTU is a device that interfaces with sensors and actuators in the field.

• SCADA is a centralized system used to monitor and control processes in industries such as power plants, water treatment facilities, and manufacturing plants.

• RTU is a device that collects data from sensors and actuators in th...read more

Circuit breaker is used to protect electrical circuits from damage caused by overload or short circuit, while isolator is used to isolate a circuit for maintenance or repair.

• Circuit breaker is designed to automatically open and close the circuit in case of overload or short circuit.

• Isolator is manually operated to disconnect a circuit for maintenance or repair.

• Circuit breaker is a safety device, while isolator is a switching device.

• Examples: MCB (Miniature Circuit Breaker) is...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Consists of two or more coils of insulated wire wound around a core

• Primary coil receives electrical energy and induces a magnetic field in the core

• Secondary coil receives the magnetic field and converts it back into electrical energy

• Used to step up or step down voltage levels in power distribution systems

Power systems involve the generation, transmission, and distribution of electrical energy. CVT stands for continuously variable transmission. Control systems regulate the behavior of dynamic systems.

• Power systems involve the generation, transmission, and distribution of electrical energy

• CVT stands for continuously variable transmission and is used in vehicles to provide seamless gear shifting

• Control systems regulate the behavior of dynamic systems to achieve desired outputs

• An...read more

Impedance is the measure of opposition to the flow of alternating current in a circuit.

• Impedance is a combination of resistance and reactance in a circuit.

• It is measured in ohms (Ω).

• Impedance can be calculated using the formula Z = √(R^2 + X^2), where R is resistance and X is reactance.

• Impedance is important in determining the behavior of circuits in AC systems.

• Examples of components with impedance include resistors, capacitors, and inductors.