20+ Electronics and Electrical Engineer Interview Questions and Answers

A distributed system can handle a large number of requests by dividing the workload among multiple nodes.

• Use load balancing techniques to distribute requests evenly across nodes.

• Implement fault tolerance mechanisms to ensure system availability.

• Use message queues or event-driven architectures to handle asynchronous processing.

• Consider using caching mechanisms to improve performance.

• Implement horizontal scaling by adding more nodes to the system.

• Use distributed databases or da...read more

Worked with various types of VFDs, faced problems like overheating and harmonics, and solved them by adjusting parameters and installing filters. Synchronized two VFDs using communication protocols like Modbus or Profibus.

• Worked with VFD types like sensorless vector control, flux vector control, and scalar control

• Faced issues like overheating due to improper ventilation or undersized VFDs

• Solved problems by adjusting parameters like acceleration and deceleration times, and ins...read more

PLC is a programmable logic controller used to control industrial processes. Inverter is an electronic device used to control the speed of AC motors.

• PLC is used to automate industrial processes by controlling the input and output signals of machines.

• Inverter is used to control the speed of AC motors by adjusting the frequency of the power supplied to the motor.

• To check PLC input and output, use a multimeter to measure the voltage and current signals.

• To find component faults, ...read more

Yes, I have experience in Crusher plant Operation and Maintenance.

• I have experience in operating and maintaining various types of crushers such as jaw crushers, cone crushers, and impact crushers.

• I am familiar with troubleshooting common issues in crusher plants and performing regular maintenance tasks to ensure smooth operation.

• I have worked on optimizing crusher plant performance by adjusting settings, monitoring production levels, and implementing preventive maintenance sc...read more

Copper wires are commonly used for earthing due to their high conductivity and corrosion resistance.

• Copper wires are the most commonly used for earthing due to their high conductivity.

• Galvanized steel wires can also be used for earthing as they are durable and corrosion-resistant.

• Aluminum wires are another option for earthing, but they are less commonly used due to their lower conductivity compared to copper.

• The size and type of wire used for earthing will depend on the speci...read more

Capacitor value can be checked using a multimeter or a capacitance meter.

• Use a multimeter in capacitance mode to measure the value of a capacitor.

• For polarized capacitors, make sure to connect the positive lead to the positive terminal.

• Capacitance meters are more accurate and can measure a wider range of values.

• To check the value of a resistor, use a multimeter in resistance mode.

• Make sure to disconnect the resistor from the circuit before measuring its value.

To check power in multimeter, set the dial to the appropriate voltage range and connect the probes to the circuit.

• Set the dial to the appropriate voltage range

• Connect the probes to the circuit

• Read the voltage displayed on the multimeter

• Ensure the polarity of the probes is correct

Red wires are typically used for power connections in electrical circuits.

• Red wires are commonly used to connect power sources such as batteries or power supplies to electrical components.

• They are also used for connecting switches or outlets to the power source.

• In some cases, red wires may indicate a live or hot wire in a circuit.

• Red wires are often paired with black wires, which are used for grounding purposes.

• It is important to follow proper wiring color codes to ensure saf...read more

Electronics is the branch of physics and engineering that deals with the behavior and effects of electrons and with electronic devices, systems, or equipment.

• Electronics involves the study of electronic components such as diodes, transistors, and integrated circuits.

• It also involves the design and development of electronic circuits, devices, and systems.

• Examples of electronic devices include smartphones, computers, televisions, and radios.

• An intigator is not a recognized term...read more

Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.

• Transformers have two coils of wire, known as the primary and secondary coils.

• When an alternating current flows through the primary coil, it creates a changing magnetic field.

• This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy between the coils.

• The ratio of the number of turns in the primary and secondary c...read more

To install Windows on a PC, you need to create a bootable USB or DVD, insert it into the PC, and follow the on-screen instructions.

• Create a bootable USB or DVD with Windows installation files

• Insert the bootable media into the PC

• Boot from the media and follow the on-screen instructions

• Select the language, time and currency format, and keyboard or input method

• Enter the product key and select the edition of Windows to install

• Accept the license terms and choose the type of instal...read more

UPS functions by providing backup power to connected devices during power outages.

• UPS stands for Uninterruptible Power Supply.

• It contains a battery that is charged when the main power supply is on.

• When the main power supply fails, the UPS switches to battery power.

• The UPS provides power to connected devices until the main power supply is restored.

• UPS also protects devices from power surges and voltage fluctuations.

Types of transformers include step-up, step-down, isolation, autotransformer, and instrument transformers.

• Step-up transformer increases voltage output

• Step-down transformer decreases voltage output

• Isolation transformer provides electrical isolation between primary and secondary windings

• Autotransformer has a single winding with multiple taps for different voltage levels

• Instrument transformers are used for measuring current and voltage in high voltage systems

Company rules refer to the policies and guidelines set by a company to govern the behavior and actions of its employees.

• Company rules are established to ensure a safe and productive work environment.

• They outline expectations for employee conduct, performance, and responsibilities.

• Examples of company rules include dress code policies, attendance requirements, and confidentiality agreements.

PCB assembly is the process of attaching electronic components to a printed circuit board.

• Components are placed on the board using automated machines or by hand

• Soldering is used to attach the components to the board

• Inspection and testing are done to ensure proper functionality

• PCB assembly can be done in-house or outsourced to a manufacturer

• Surface mount technology (SMT) and through-hole technology (THT) are two common methods

Single phase refers to a type of electrical power distribution system where power is transmitted using only one phase.

• Single phase systems have one live conductor and one neutral conductor.

• Commonly used in residential buildings for powering lighting, appliances, and outlets.

• Examples include typical household electrical outlets and lighting circuits.

The unit of power is the watt (W).

• Power is measured in watts (W)

• 1 watt is equal to 1 joule per second

• Common examples: light bulbs (e.g. 60W), electrical appliances, motors

• Power can also be measured in kilowatts (kW) for larger values

The unit of Watt is a measure of power in the International System of Units (SI).

• Watt is named after James Watt, the inventor of the steam engine.

• It is equivalent to one joule per second.

• Common examples of power usage in watts include light bulbs, appliances, and electronic devices.