40+ Schneider Electric Interview Questions and Answers for Freshers

We used Python 3.7 and Django 2.2 framework for the project.

• Python 3.7 was used as the programming language

• Django 2.2 was used as the web framework

• We also used other libraries and tools such as Pandas, NumPy, and Git

• The project was developed using Agile methodology

Earthing is the process of connecting electrical systems to the ground to prevent electrical shock and protect against electrical faults.

• Earthing is also known as grounding.

• It involves connecting the electrical system to the earth using conductive materials.

• Earthing provides a path for the flow of excess electrical current to the ground.

• It helps in preventing electrical shock by diverting the current away from the user.

• Earthing also protects electrical equipment and buildings...read more

A fuse is an electrical safety device that protects electrical circuits from overloading and short circuits. Its maximum rating depends on the application.

• A fuse contains a metal wire or filament that melts when the current exceeds a certain level, breaking the circuit and preventing damage to the equipment or wiring.

• Fuses are rated based on their current-carrying capacity and voltage rating.

• Examples of fuse ratings include 1A, 5A, 10A, 20A, etc.

• Fuses are commonly used in hou...read more

Cloud computing is a network of remote servers hosted on the internet to store, manage, and process data, while grid computing is a distributed computing model that relies on a network of computers to work together on a task.

• Cloud computing provides on-demand access to a shared pool of configurable computing resources, while grid computing involves the coordination of disparate resources to solve a complex problem.

• In cloud computing, resources are typically virtualized and sc...read more

OS stands for Operating System. It is a software that manages computer hardware and software resources.

• Types of OS include Windows, macOS, Linux, Android, iOS, and Unix

• OS can be classified as single-user or multi-user, single-tasking or multi-tasking, and real-time or non-real-time

• Examples of single-user OS are Windows and macOS, while examples of multi-user OS are Linux and Unix

• Real-time OS are used in systems that require immediate response, such as air traffic control and ...read more

BM stands for Blade Material. Nozzle is a device that directs or controls the flow of a fluid.

• BM refers to the material used to make the blades of a fan. It can be plastic, metal, or wood.

• Nozzle is a component that is used to control the flow of a fluid, such as air or water. It can be found in various devices, such as a garden hose or a spray bottle.

• In a fan, the nozzle is the part that directs the air flow in a specific direction.

• The size and shape of the nozzle can affect ...read more

The VI characteristics of a pn junction diode show the relationship between voltage and current flowing through the diode.

• The graph shows a non-linear relationship between voltage and current, with forward and reverse bias regions.

• In forward bias, the diode conducts current easily with a small voltage drop, while in reverse bias, it blocks current flow until breakdown voltage is reached.

• The knee voltage in the forward bias region indicates the point where the diode starts con...read more

Squirrel cage motors are used in various applications such as industrial machinery, HVAC systems, pumps, fans, and compressors.

• Industrial machinery

• HVAC systems

• Pumps

• Fans

• Compressors

An Astable Multivibrator is a type of oscillator circuit that generates a continuous square wave output.

• Consists of two transistors cross-coupled through capacitors and resistors

• No stable state, continuously switches between high and low states

• Capacitors charge and discharge alternately, creating oscillations

• Commonly used in applications like signal generators, LED flashers, and tone generators

Copper and aluminum conductors are commonly used in transmission lines.

• Copper conductors have high conductivity and are often used in high voltage transmission lines.

• Aluminum conductors are lighter and cheaper, making them suitable for long distance transmission lines.

• Composite conductors, such as Aluminum Conductor Steel Reinforced (ACSR), are also used for their strength and conductivity.

POP focuses on data and behavior separation while OOP focuses on objects and their interactions.

• POP stands for procedural-oriented programming while OOP stands for object-oriented programming.

• POP focuses on functions and procedures while OOP focuses on objects and their properties and methods.

• POP is more suitable for small programs while OOP is more suitable for large programs.

• In POP, data can be accessed by any function while in OOP, data is encapsulated within objects.

• Examp...read more

Risk is the possibility of harm or loss. Risk assessment is the process of identifying, analyzing, and evaluating potential risks.

• Risk is inherent in any activity or situation

• Risk assessment involves identifying potential hazards and evaluating the likelihood and severity of harm

• Risk assessment helps in developing strategies to mitigate or manage risks

• Examples of risk assessment include workplace safety assessments, environmental impact assessments, and financial risk assessm...read more

Automation is the use of technology to perform tasks without human intervention, while manual refers to tasks performed by humans.

• Automation involves the use of machines, software, or other technology to perform tasks.

• Manual refers to tasks that are performed by humans using their physical abilities and skills.

• Automation aims to increase efficiency, accuracy, and productivity by reducing human involvement.

• Manual tasks require human decision-making, physical effort, and attent...read more

Semiconductor devices like relay, PCB, Capacitor, Resistor, Colour coding are essential components in electronic circuits.

• Relay is an electrically operated switch used to control high power circuits.

• PCB or Printed Circuit Board is a board used to mechanically support and electrically connect electronic components.

• Capacitor is a passive electronic component that stores energy in an electric field.

• Resistor is a passive electronic component that limits the flow of electric curre...read more

Fuse and MCB are both electrical protection devices, but they differ in their operation and resetability.

• Fuse is a one-time use device that melts when excessive current flows through it, breaking the circuit and protecting the electrical system.

• MCB (Miniature Circuit Breaker) is a resettable device that trips and opens the circuit when excessive current is detected, but can be easily reset after the fault is resolved.

• Fuses need to be replaced after they blow, while MCBs can b...read more

Types of risk include financial, operational, strategic, compliance, reputational, and physical.

• Financial risk involves potential losses due to market fluctuations, credit defaults, or other financial factors.

• Operational risk arises from internal processes, systems, or human error.

• Strategic risk is the potential for losses due to changes in business strategy or external factors.

• Compliance risk involves failure to comply with laws, regulations, or industry standards.

• Reputation...read more

My daily routine tasks include experienced inbound and outbound logistics, cycle count, and FIFO.

• I have experience in managing inbound and outbound logistics, ensuring timely delivery of goods and materials.

• I am skilled in conducting cycle counts to ensure inventory accuracy and identify any discrepancies.

• I have a strong understanding of FIFO (First In, First Out) inventory management principles.

• I am able to prioritize tasks and manage my time effectively to ensure all daily ...read more

Ladder logic diagram is a graphical programming language used for PLC programming.

• Ladder logic diagrams consist of rungs representing logical control circuits.

• It uses symbols to represent different components like contacts, coils, timers, etc.

• The logic flow is from left to right, with power flowing from top to bottom.

• It is commonly used in Programmable Logic Controllers (PLCs) for automation.

• Example: A simple ladder logic diagram for a motor control circuit.

MCB stands for Miniature Circuit Breaker.

• MCB is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.

• It automatically interrupts the flow of current when a fault is detected.

• MCBs are commonly used in residential, commercial, and industrial applications.

• They are more compact and efficient compared to traditional fuses.

• Examples of MCB manufacturers include Schneider Electric, Siemens, and ABB.

Relays are electrically operated switches used to control circuits. There are several types of relays.

• Electromechanical relays use a coil to create a magnetic field that pulls a switch to make or break a circuit.

• Solid-state relays use semiconductor devices to switch the circuit on and off.

• Reed relays use a magnetic field to control the switch.

• Polarized relays have a specific polarity and can only be used in one direction.

• Time-delay relays have a built-in delay before switchin...read more

Python is a high-level programming language known for its simplicity and readability.

• Python is widely used for web development, data analysis, artificial intelligence, and scientific computing.

• It has a large standard library and supports multiple programming paradigms.

• Python uses indentation to define code blocks, making it easy to read and write.

• Popular frameworks and libraries in Python include Django, Flask, NumPy, and pandas.

Slip rings are used to transmit power and electrical signals from a stationary to a rotating structure.

• Allow continuous rotation of machinery without tangling wires

• Used in applications like wind turbines, robotics, and radar systems

• Enable transfer of power, data, and signals between stationary and rotating parts

Different types of fires require different types of fire extinguishers.

• Class A fires involve ordinary combustibles such as wood, paper, or cloth and can be extinguished with water or foam extinguishers.

• Class B fires involve flammable liquids such as gasoline or oil and require a dry chemical or carbon dioxide extinguisher.

• Class C fires involve electrical equipment and require a non-conductive extinguisher such as carbon dioxide or dry chemical.

• Class D fires involve combustibl...read more

Different types of motors are used for various applications in industries and households.

• AC motors are commonly used in household appliances like fans and refrigerators.

• DC motors are used in toys, power tools, and electric vehicles.

• Servo motors are used in robotics and automation for precise control.

• Stepper motors are used in CNC machines and 3D printers for accurate positioning.

Risk can be reduced by identifying potential hazards, implementing controls, and regularly reviewing and updating safety procedures.

• Conduct regular risk assessments to identify potential hazards

• Implement controls such as safety protocols, training, and equipment

• Regularly review and update safety procedures to ensure effectiveness

• Encourage employee involvement in safety initiatives

• Provide ongoing safety training and education

• Utilize technology and automation to reduce human er...read more

A fuse is a safety device that protects electrical circuits from excessive current flow.

• A fuse is made up of a metal wire or strip that melts when excessive current passes through it.

• When the fuse melts, it breaks the circuit and prevents damage to the electrical components.

• Fuses are commonly used in electrical systems to protect against short circuits and overloads.

• Examples of fuses include glass tube fuses, blade fuses, and cartridge fuses.

Power system is a network of electrical components used to generate, transmit, and distribute electricity.

• Power system includes power generation plants, transmission lines, substations, and distribution networks.

• It ensures electricity is efficiently produced and delivered to consumers.

• Examples of power systems include the electrical grid in a city or a solar power system for a home.

The colours of phase refer to the different stages or states of a substance or system.

• Phase colours are used to visually represent different phases or states of matter.

• Common phase colours include solid (usually white or gray), liquid (various colors), and gas (colorless).

• Other phases like plasma (ionized gas) can have unique colours like blue or purple.

• Phase colours can also be influenced by impurities or chemical reactions.

• For example, water can be solid (ice, white), liqui...read more

My technical interests lie in the fields of artificial intelligence, machine learning, and robotics.

• I am particularly interested in developing algorithms for autonomous systems.

• I enjoy working on projects that involve computer vision and natural language processing.

• I have a passion for exploring the intersection of technology and healthcare, such as developing medical imaging analysis tools.

NAND gate is a digital logic gate that produces an output only when both inputs are low.

• NAND gate is a fundamental building block in digital electronics.

• It is the opposite of an AND gate, as it produces a low output when both inputs are high.

• The output of a NAND gate is high (1) when any of the inputs are low (0).

• NAND gates are commonly used in logic circuits, such as in computers and microcontrollers.

Designing a blower for industrial use requires consideration of factors such as air flow rate, pressure, power consumption, and noise level.

• Determine the required air flow rate and pressure for the specific application

• Select an appropriate blower type (centrifugal, axial, etc.) based on the requirements

• Calculate the power consumption and efficiency of the blower

• Consider noise level and implement noise reduction measures if necessary

• Ensure proper maintenance and safety measure...read more

Power electronics is a branch of engineering that deals with the conversion and control of electrical power.

• Power electronics involves the use of electronic devices to convert and control electrical power.

• It is used in various applications such as power supplies, motor drives, renewable energy systems, and electric vehicles.

• Power electronic devices include rectifiers, inverters, converters, and voltage regulators.

• These devices enable efficient power conversion, voltage regula...read more

BJT, IGBT, BJT, and MOS are all types of transistors with different structures and characteristics.

• BJT (Bipolar Junction Transistor) is a current-controlled device with high switching speed.

• IGBT (Insulated Gate Bipolar Transistor) combines the advantages of MOSFET and BJT, used in high power applications.

• MOS (Metal-Oxide-Semiconductor) transistors are voltage-controlled devices with low power consumption.

• Each type of transistor has different characteristics and applications i...read more

A differential amplifier sums the difference between two input voltages multiplied by a constant gain.

• Differential amplifiers amplify the voltage difference between two input signals while rejecting any common-mode signals.

• They are commonly used in instrumentation amplifiers, audio amplifiers, and operational amplifiers.

• The gain of a differential amplifier is determined by the ratio of the resistors in the circuit.

• Example: In an op-amp circuit, the differential amplifier ampl...read more

5S is a workplace organization method that uses a list of five Japanese words: seiri (sort), seiton (set in order), seiso (shine), seiketsu (standardize), and shitsuke (sustain).

• 5S is a method for organizing a workplace to improve efficiency and effectiveness.

• It involves sorting items, setting them in order, cleaning and shining the workspace, standardizing processes, and sustaining the improvements.

• Examples of 5S implementation include organizing tools in a shadow board, lab...read more

16 losses refers to the concept of 16 major losses in fluid flow systems.

• 16 losses are the major sources of energy loss in a fluid flow system.

• Examples include friction losses, sudden expansion losses, and bend losses.

• Understanding and minimizing these losses is crucial for efficient production processes.

Extinction angle refers to the angle at which light is completely blocked by a crystal under crossed polarizers.

• Extinction angle is used in mineralogy to identify minerals based on their optical properties.

• It is measured by rotating a thin section of a mineral under crossed polarizers until the light is completely blocked.

• Different minerals have different extinction angles, which helps in their identification.

• Extinction angle can also be used to determine the orientation of c...read more