
Schneider Electric


200+ Schneider Electric Interview Questions and Answers
Q101. Why is failed the PCB testing?
PCB testing can fail due to various reasons such as faulty components, incorrect assembly, poor design, and environmental factors.
Faulty components can cause PCB testing to fail. This can include issues with resistors, capacitors, or other electronic components.
Incorrect assembly can also lead to failed PCB testing. This can happen if components are not properly soldered or if they are placed in the wrong location.
Poor design can be another reason for failed PCB testing. If t...read more
Q102. Postman details, what are variable ?
Variables in Postman are placeholders that can be used to store and reuse values in requests and scripts.
Variables in Postman are denoted by enclosing them in double curly braces like {{variable_name}}
Variables can be defined at different scopes such as global, environment, and local
Variables can be used to store values like API keys, tokens, and dynamic data
Variables can be dynamically updated using scripts or pre-request scripts
Q103. relays and it's types
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
Q104. How much you know about computer
I have a good understanding of computers and their basic functions.
Proficient in using Microsoft Office Suite
Familiar with basic computer hardware and software
Able to troubleshoot common computer issues
Knowledgeable in data entry software and techniques
Q105. Which place use star delta connection
Star delta connection is commonly used in high-power industrial applications to reduce starting current.
High-power industrial applications
Motors with high starting current
Applications where smooth starting is required
Q106. Tell me about end to end process for bidding
The end-to-end process for bidding involves identifying opportunities, preparing proposals, submitting bids, and negotiating contracts.
Identify potential bidding opportunities through market research and networking
Prepare a comprehensive proposal that addresses the client's needs and requirements
Submit the bid according to the client's guidelines and deadlines
Participate in negotiations with the client to finalize the contract terms and conditions
Q107. Sheet Metal operation and its joining types
Sheet metal operations involve cutting, bending, and forming metal sheets. Joining types include welding, riveting, and adhesive bonding.
Sheet metal operations include cutting, bending, and forming to create desired shapes and structures
Joining types for sheet metal include welding, riveting, and adhesive bonding
Welding involves melting and fusing metal pieces together, commonly used for strong joints
Riveting uses metal fasteners to join sheets together, providing a secure co...read more
Q108. Known material standards and selection of material
Material standards are guidelines for selecting materials based on properties, performance, and regulations.
Material standards ensure quality, safety, and reliability of materials used in design.
Standards like ASTM, ISO, and ANSI provide specifications for materials based on properties like strength, durability, and corrosion resistance.
Selection of materials involves considering factors like cost, availability, environmental impact, and end-use requirements.
Materials should ...read more
Q109. Write a code to print a pyramid of stars
Q110. Who many types in mccb
There are three main types of MCCBs: thermal magnetic, electronic, and microprocessor-based.
Thermal magnetic MCCBs use both thermal and magnetic elements to provide overload and short circuit protection.
Electronic MCCBs use electronic components for more precise and adjustable protection settings.
Microprocessor-based MCCBs offer advanced protection features and communication capabilities.
Examples: Schneider Electric EasyPact EZC, Siemens Sentron 3VL, ABB Tmax XT
Q111. What is VFD? How its Working ?
VFD stands for Variable Frequency Drive. It is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the motor.
VFDs are used to control the speed and torque of AC motors in various applications.
They work by converting fixed frequency and voltage AC power to adjustable frequency and voltage output.
VFDs can help save energy by matching motor speed to the actual load requirements.
Common applications of VFDs include HVAC systems...read more
Q112. What do know about control systems
Control systems are used to manage, regulate, and control the behavior of other devices or systems.
Control systems use feedback loops to monitor and adjust the output of a system to meet desired goals.
Examples of control systems include thermostats in HVAC systems, cruise control in cars, and autopilot in aircraft.
There are two main types of control systems: open-loop and closed-loop (feedback) systems.
Control systems can be implemented using various techniques such as PID co...read more
Q113. What is 8D ,and what qre 8D analysis
8D is a problem-solving methodology used to identify, correct, and prevent recurring problems.
8D stands for Eight Disciplines and is a structured problem-solving process.
It involves a team working together to identify the root cause of a problem, implement corrective actions, and prevent recurrence.
8D analysis includes steps such as defining the problem, forming a team, identifying interim containment actions, identifying root causes, implementing permanent corrective actions...read more
Q114. Differentiate among different BI tools.
Different BI tools have varying features and capabilities for data analysis and reporting.
BI tools like Tableau, Power BI, and QlikView offer interactive visualizations and dashboards.
SAS and IBM Cognos provide advanced analytics and predictive modeling capabilities.
MicroStrategy and Oracle BI offer robust reporting and ad-hoc query capabilities.
Google Data Studio and Microsoft Excel are popular for their ease of use and data manipulation features.
Each BI tool has its own str...read more
Q115. Difference between ups snd inverter
UPS provides instant backup power during outages, while inverter converts DC power to AC power.
UPS stands for Uninterruptible Power Supply and provides instant backup power during outages.
Inverter converts DC power from batteries or solar panels to AC power for household appliances.
UPS typically has a battery backup to provide continuous power, while inverters rely on external power sources.
UPS is commonly used for critical equipment like computers and servers, while inverter...read more
Q116. What is fuse??
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.
Q117. What do you know about python?
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.
Q118. Testing and evaluation of high voltage products.
Testing and evaluating high voltage products involves ensuring safety, reliability, and compliance with standards.
Performing insulation resistance tests to check for any leakage currents
Conducting dielectric strength tests to determine the maximum voltage a product can withstand
Verifying compliance with relevant safety standards such as IEC 60601 for medical devices
Testing for electromagnetic compatibility to ensure the product does not interfere with other equipment
Using hig...read more
Q119. First angle projection vs Third angle projection
First angle projection and Third angle projection are two different methods used in engineering drawings to represent a 3D object on a 2D plane.
First angle projection is commonly used in Europe and Asia, where the object is placed in the first quadrant (top right) of the viewing plane.
Third angle projection is predominantly used in North America, where the object is placed in the third quadrant (bottom right) of the viewing plane.
In first angle projection, the top view is pla...read more
Q120. Lader logic drawing for DOL starter
A ladder logic drawing is a graphical representation of the electrical connections and logic used in a DOL starter.
A DOL (Direct-On-Line) starter is used to start and stop a motor directly, without any intermediate control.
The ladder logic drawing for a DOL starter typically includes power supply connections, motor connections, and control elements such as contactors and overload relays.
The ladder logic diagram follows a vertical line format, with power supply connections at ...read more
Q121. What you mean by FMEA
FMEA stands for Failure Mode and Effects Analysis, a systematic method for identifying and preventing potential failures in a process or product.
FMEA is a proactive risk assessment tool used to identify and prioritize potential failure modes in a process or product.
It involves analyzing the potential effects of each failure mode, the likelihood of their occurrence, and the ability to detect and prevent them.
FMEA helps in improving product quality, reliability, and safety by a...read more
Q122. How to improve occurence
To improve occurrence, focus on root cause analysis, implementing corrective actions, and continuous monitoring.
Conduct thorough root cause analysis to identify the underlying issues leading to occurrences.
Implement corrective actions based on the findings of the root cause analysis to prevent reoccurrence.
Establish a robust monitoring system to track the effectiveness of the corrective actions and identify any new occurrences.
Provide training to employees on best practices t...read more
Q123. What is diff in IATF and ISO 9001
IATF focuses on automotive industry requirements while ISO 9001 is a generic quality management standard.
IATF 16949 is specifically designed for automotive industry suppliers
ISO 9001 is a generic quality management standard applicable to any industry
IATF 16949 includes additional automotive-specific requirements such as production part approval process (PPAP)
Both standards emphasize continual improvement and customer satisfaction
Q124. What is electric current?
Electric current is the flow of electric charge through a conductor.
Electric current is measured in Amperes (A).
It is caused by the movement of electrons in a conductor.
The direction of current flow is from positive to negative.
Examples of sources of electric current include batteries and power outlets.
Q125. Explain the principles of transformer testing
Transformer testing ensures reliability and performance through various assessments of electrical and mechanical properties.
Insulation Resistance Testing: Measures the insulation quality to prevent electrical leakage.
Turns Ratio Testing: Compares the primary and secondary winding voltages to ensure correct transformation.
Power Factor Testing: Assesses the dielectric losses in the insulation system.
Temperature Rise Testing: Evaluates the heat generated under load conditions to...read more
Q126. What is Lean Manufacturing?
Lean Manufacturing is a systematic approach to eliminate waste and improve efficiency in production processes.
Lean Manufacturing focuses on reducing waste in all forms, including time, resources, and defects.
It aims to streamline production processes by eliminating non-value-added activities.
Lean Manufacturing emphasizes continuous improvement and employee involvement.
Examples of Lean Manufacturing tools include 5S, Kanban, and Just-in-Time (JIT) production.
By implementing Le...read more
Q127. Difference between elastic and plastic deformation
Elastic deformation is reversible and temporary, while plastic deformation is permanent and irreversible.
Elastic deformation occurs when a material is stretched or compressed, but returns to its original shape once the force is removed.
Plastic deformation occurs when a material is stretched or compressed beyond its elastic limit, causing permanent changes in shape.
Rubber band stretching is an example of elastic deformation, while bending a metal spoon is an example of plastic...read more
Q128. various searching techniques with time complexity
Various searching techniques with time complexity
Linear Search - O(n)
Binary Search - O(log n)
Hashing - O(1)
Depth First Search (DFS) - O(V + E)
Breadth First Search (BFS) - O(V + E)
Q129. Tell about yourself, what is cathode and anode
Cathode is the negatively charged electrode and Anode is the positively charged electrode in an electrical circuit.
Cathode attracts positively charged ions and electrons move towards it.
Anode attracts negatively charged ions and electrons move away from it.
In a battery, the anode is the electrode where oxidation occurs and the cathode is where reduction occurs.
In electrolysis, the cathode is where reduction occurs and the anode is where oxidation occurs.
Q130. What is timing hour's I expected timings 9-5
Timing hours refer to the specific hours during which a scanning operator is expected to work.
Timing hours are the designated hours during which a scanning operator is expected to work.
These hours may vary depending on the company or organization.
For example, timing hours may be from 9am to 5pm, or they may be from 10pm to 6am for a night shift.
It is important for the scanning operator to adhere to the timing hours to ensure efficient workflow and productivity.
Q131. Working of circuit Breakers and relays
Circuit breakers are devices that automatically stop the flow of electricity when a fault is detected, while relays are switches that open or close circuits based on electrical signals.
Circuit breakers are designed to protect electrical circuits from damage caused by overcurrent or short circuits.
They work by detecting abnormal current flow and quickly interrupting the circuit to prevent damage.
Relays are electromechanical switches that open or close circuits based on electri...read more
Q132. Difference bwteen the two
The difference between the two is the level of automation and complexity involved in the processes.
Process automation involves automating repetitive tasks and workflows to increase efficiency.
Automation engineering focuses on designing, developing, and implementing automated systems for various industries.
Process automation can be as simple as setting up email notifications for certain events, while automation engineering may involve creating robotic systems for manufacturing...read more
Q133. GD&T uses and its real life applications
GD&T is a system for defining and communicating engineering tolerances. It is used in manufacturing to ensure parts fit together correctly.
GD&T stands for Geometric Dimensioning and Tolerancing
It helps specify the allowable variations in form, size, and orientation of parts
Real life applications include aerospace, automotive, and medical industries
Ensures parts are manufactured to the correct dimensions and fit together properly
Q134. Colours of phase??
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
Q135. Why Are we PFT testing?
PFT testing is done to evaluate lung function and diagnose respiratory diseases.
PFT stands for Pulmonary Function Testing
It measures lung capacity, airflow, and gas exchange
It helps in diagnosing respiratory diseases like asthma, COPD, and lung fibrosis
It is also used to monitor the effectiveness of treatment for respiratory diseases
Q136. Types of communication protocols?
Communication protocols are rules that govern the exchange of information between devices or systems.
Types include TCP/IP, HTTP, FTP, SMTP, POP3, and IMAP.
TCP/IP is used for internet communication.
HTTP is used for web browsing.
FTP is used for file transfers.
SMTP, POP3, and IMAP are used for email communication.
Q137. Star delta Circuit diagram explanation?
Star delta circuit is a method used to reduce the starting current of induction motors.
Star delta starter is used for starting induction motors
In star connection, motor windings are connected in a star configuration for reduced voltage starting
After a certain time, the windings are switched to a delta configuration for full voltage operation
This method helps in reducing the starting current and torque on the motor
Q138. Types of Plastics basic information Die
Types of plastics used in die design include thermoplastics, thermosets, and elastomers.
Thermoplastics can be melted and reformed, such as ABS and polyethylene
Thermosets are set during molding and cannot be remelted, like epoxy and phenolic resins
Elastomers are flexible and rubber-like, such as silicone and neoprene
Q139. Do you have scripting knowledge
Yes, I have scripting knowledge in languages like Bash, PowerShell, and Python.
Proficient in Bash scripting for automation tasks
Experience with PowerShell scripting for Windows administration
Familiarity with Python scripting for system monitoring and management
Q140. Why are slip rings used?
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
Q141. What is power electronics
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
Q142. Types of induction motors
Types of induction motors include single-phase, three-phase, squirrel cage, and wound rotor motors.
Single-phase induction motors are commonly used in household appliances.
Three-phase induction motors are widely used in industrial applications.
Squirrel cage motors have a simple and rugged construction.
Wound rotor motors allow for external resistance to be added for speed control.
Q143. Can you tell how lvm works
LVM (Logical Volume Manager) is a tool used in Linux to manage storage by creating logical volumes from physical volumes.
LVM allows for dynamic resizing of logical volumes without needing to unmount the filesystem.
It consists of physical volumes (PVs), volume groups (VGs), and logical volumes (LVs).
PVs are physical storage devices like hard drives or partitions, VGs are a collection of PVs, and LVs are the virtual partitions created from VGs.
LVM provides flexibility in managi...read more
Q144. UPS maintenance bypass operation procedure
UPS maintenance bypass operation procedure involves safely transferring power supply from UPS to bypass mode for maintenance.
Ensure all connected equipment is powered off before starting the maintenance bypass operation.
Follow manufacturer's instructions for switching the UPS to bypass mode.
Verify that the bypass switch is in the correct position before proceeding with maintenance.
After completing maintenance, switch the UPS back to normal operation mode and power on the conn...read more
Q145. What is rpn in fmea
RPN stands for Risk Priority Number in FMEA, used to prioritize potential failure modes based on severity, occurrence, and detection.
RPN is calculated by multiplying severity, occurrence, and detection ratings for each potential failure mode.
It helps prioritize which failure modes to address first based on their potential impact.
For example, a failure mode with a high severity, high occurrence, and low detection rating would have a higher RPN and require immediate attention.
Q146. What is resistor?
A resistor is an electronic component that resists the flow of electrical current.
Resistors are used to control the amount of current flowing in a circuit.
They are measured in ohms (Ω) and have color-coded bands to indicate their resistance value.
Resistors dissipate energy in the form of heat when current flows through them.
Examples of resistors include carbon film resistors, metal film resistors, and wirewound resistors.
Q147. What is stator?
Stator is the stationary part of an electric motor or generator.
Stator is the stationary component in an electric motor or generator that surrounds the rotor.
It does not rotate and is responsible for producing a magnetic field to interact with the rotor.
Examples include the stator in a car alternator or the stator in a wind turbine generator.
Q148. Typer of Automatic Transfer switch
Automatic Transfer Switches are devices used to automatically switch power sources in case of a power outage.
Types of automatic transfer switches include open transition, closed transition, and delayed transition.
Examples of automatic transfer switch manufacturers include Generac, Eaton, and Schneider Electric.
Automatic transfer switches are commonly used in backup power systems for critical facilities like hospitals, data centers, and telecommunications facilities.
Q149. What is process of the tally
Tally is a software used for accounting purposes to record financial transactions and generate reports.
Tally involves creating ledgers for different accounts such as sales, purchases, expenses, etc.
Transactions are entered into the system and categorized under appropriate ledgers.
The software automatically updates the balances of each account based on the transactions entered.
Tally can generate various financial reports like balance sheet, profit and loss statement, and cash ...read more
Q150. How does chiller operate
A chiller operates by removing heat from a liquid through a refrigeration cycle and then transferring that heat to the air outside.
Chiller absorbs heat from a liquid coolant, typically water or a mixture of water and glycol.
The absorbed heat is transferred to the refrigerant in the evaporator, causing it to evaporate and absorb more heat.
The refrigerant is then compressed, raising its temperature and pressure, before being condensed in the condenser and releasing heat to the ...read more
Q151. what is contactor ?
A contactor is an electrical device used to control the flow of electricity in a circuit by opening and closing contacts.
Contactor is typically used to control motors, lighting, heating, and other electrical loads.
It consists of a coil, contacts, and an enclosure.
Contactor contacts can be normally open (NO), normally closed (NC), or changeover.
Examples of contactor brands include Siemens, Schneider Electric, and ABB.
Q152. What is Full Wave rectifier.
A full wave rectifier is an electronic circuit that converts alternating current (AC) to direct current (DC) by allowing both positive and negative half cycles of the input signal to pass through.
Converts AC to DC by allowing both positive and negative half cycles to pass through
Uses diodes to rectify the input signal
Produces a smoother output compared to half wave rectifiers
Commonly used in power supplies and battery chargers
Q153. Explain ur technical interests?
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.
Q154. SQL in depth Different types of join
Different types of SQL joins include inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is a match in both tables
Left join: Returns all rows from the left table and the matched rows from the right table
Right join: Returns all rows from the right table and the matched rows from the left table
Full outer join: Returns rows when there is a match in either table
Q155. Explain everything about NAND gate.
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.
Q156. Find top most parent using apex
Use SOQL query to find top most parent in Salesforce
Use a SOQL query to retrieve the parent records
Check if the parent record has a parent record until reaching the top most parent
Use a loop or recursion to traverse up the hierarchy
Q157. What do you PFMEA means
PFMEA stands for Process Failure Mode and Effects Analysis.
PFMEA is a structured approach used to identify and prioritize potential failure modes in a process.
It helps in assessing the potential impact of failures and developing preventive actions.
PFMEA involves analyzing each process step to determine potential failure modes, their causes, effects, and controls.
It is commonly used in industries like automotive, manufacturing, and healthcare to improve quality and prevent def...read more
Q158. What’s meant by edge control
Edge control refers to the ability to manage and manipulate the edges of an object or shape.
Refers to the precision and accuracy in controlling the boundaries or edges of an object
Commonly used in graphic design and image editing software to refine and enhance the edges of an image
Can also refer to the ability to maintain control and stability while navigating along the edge of a surface or platform
Q159. Advantages of dc motor?
DC motors have advantages such as high starting torque, easy speed control, and simple construction.
High starting torque allows for quick acceleration
Easy speed control through voltage adjustment
Simple construction with fewer parts and lower cost
Efficient operation with minimal energy loss
Suitable for applications requiring constant speed or variable speed operation
Q160. Wt is structured of the accounting
The structure of accounting refers to the organization and framework of financial information and reporting within a company.
Accounting structure includes the chart of accounts, which categorizes financial transactions.
It also involves the use of accounting principles and standards to ensure accuracy and consistency.
Financial statements, such as the balance sheet and income statement, are key components of the accounting structure.
Internal controls and processes are put in pl...read more
Q161. whati stress strain curve
A stress-strain curve shows the relationship between stress (force per unit area) and strain (deformation) in a material.
It is used to determine the mechanical properties of a material, such as its stiffness, strength, and ductility.
The curve typically consists of a linear elastic region, a yield point, a plastic deformation region, and ultimately failure.
Different materials exhibit different shapes of stress-strain curves, depending on their composition and properties.
For ex...read more
Q162. Different motors and their uses
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.
Q163. How circuit breaker works
Q164. What is oms law?
Q165. What is transformer?
Q166. Explain about dcs architecture
DCS architecture stands for Distributed Control System architecture which is a network of controllers used to manage industrial processes.
DCS architecture is used in industries such as oil and gas, power generation, and chemical processing.
It consists of a network of controllers that communicate with each other to manage and control various processes.
DCS architecture allows for real-time monitoring and control of processes, improving efficiency and reducing downtime.
Examples ...read more
Q167. What is Java and SQL??
Java is a popular programming language used for developing applications, while SQL is a language used for managing and querying databases.
Java is an object-oriented programming language known for its platform independence and versatility.
SQL (Structured Query Language) is used to communicate with and manipulate databases.
Java can be used to create web applications, mobile apps, and enterprise software.
SQL queries are used to retrieve, insert, update, and delete data in databa...read more
Q168. 1.what is Quality?
Q169. Implement method chaining in JS
Method chaining allows calling multiple methods on the same object in a single line.
Create a class with methods that return 'this' to enable chaining
Each method should modify the object's state and return 'this'
Example: class Calculator { add(num) { this.result += num; return this; } }
Example: const calc = new Calculator(); calc.add(5).add(3);
Q170. Expectations from Schneider Electric
Schneider Electric expects the Operations Manager to effectively manage operations, drive efficiency, and ensure compliance with company policies and procedures.
Ensure smooth operations and optimize processes
Drive efficiency and cost savings through continuous improvement initiatives
Ensure compliance with company policies, procedures, and industry regulations
Lead and develop a high-performing operations team
Collaborate with cross-functional teams to achieve business objective...read more
Q171. What is Power system
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.
Q172. What is the VFD
VFD stands for Variable Frequency Drive, used to control the speed of an AC motor by varying the frequency and voltage supplied to the motor.
VFDs are commonly used in industrial applications to control pumps, fans, and other motor-driven equipment.
They can improve energy efficiency by adjusting motor speed to match the required load.
VFDs can also provide better control over motor acceleration and deceleration, reducing wear and tear on equipment.
Examples of VFD applications i...read more
Q173. What is the rccb
RCCB stands for Residual Current Circuit Breaker, a device designed to quickly disconnect power in the event of a leakage current.
RCCB is a safety device used to protect against electric shock and fire hazards.
It detects any imbalance in the electrical current flowing through the circuit.
When a leakage current is detected, the RCCB trips and disconnects the power supply.
RCCBs are commonly used in residential, commercial, and industrial electrical installations.
They are essent...read more
Q174. Transformer Various types .
Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.
Transformers can be classified based on their construction (core type, shell type), cooling method (oil-immersed, dry-type), and application (power transformer, distribution transformer).
Examples include power transformers used in electrical substations, distribution transformers on utility poles, and instrument transformers for measuring voltage ...read more
Q175. Java migration process in organisation
Java migration process involves planning, testing, and implementation of moving Java applications to newer versions or platforms.
Assess current Java applications and dependencies
Create a migration plan with timelines and resources
Test migrated applications for compatibility and performance
Implement migration in phases to minimize disruptions
Train staff on new Java versions and best practices
Q176. What is Power factor
Power factor measures the efficiency of electrical power usage, indicating how effectively electrical energy is converted into useful work.
Power factor (PF) is defined as the ratio of real power (kW) to apparent power (kVA).
A power factor of 1 (or 100%) indicates all the power is being effectively converted into work.
Low power factor can lead to increased energy costs and reduced system capacity.
Example: A motor with a power factor of 0.8 means only 80% of the power is used f...read more
Q177. Design blower for industry
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
Q178. Draw the fan regulator circuit
Draw the circuit diagram for a fan regulator
The circuit consists of a variable resistor, a capacitor, and a diode
The variable resistor controls the speed of the fan
The capacitor is used to filter out any noise in the circuit
The diode is used to protect the circuit from voltage spikes
The circuit can be designed using a potentiometer or a triac
The circuit can be AC or DC based depending on the type of fan
Q179. Safe methodologies application
Safe methodologies are essential for product development to ensure quality and minimize risks.
Safe methodologies involve following established processes and standards to ensure quality and minimize risks.
Examples of safe methodologies include Agile, Waterfall, and DevOps.
Safe methodologies also involve continuous testing and monitoring to identify and address potential issues.
Documentation and communication are also important aspects of safe methodologies to ensure everyone i...read more
Q180. Costing details of commodity handled
Costing details of commodities handled include purchase price, transportation costs, storage fees, and any additional expenses.
Purchase price of commodities sourced from suppliers
Transportation costs for delivering commodities to the company
Storage fees for keeping commodities in inventory
Additional expenses such as customs duties or taxes
Cost analysis to identify cost-saving opportunities
Q181. What’s tact time
Tact time is the average time it takes to complete one cycle of a process or task.
Tact time is used in lean manufacturing to measure the efficiency of a production line.
It helps in identifying bottlenecks and improving overall productivity.
For example, if a production line has a tact time of 5 minutes, it means that on average, it takes 5 minutes to complete one unit of production.
Q182. What’s ergo analysis
Ergo analysis is the process of evaluating and improving the ergonomics of a workspace to enhance comfort and productivity.
Ergo analysis involves assessing the design of workstations, tools, and equipment to ensure they are optimized for human use.
It includes identifying potential ergonomic risk factors such as poor posture, repetitive motions, and awkward positioning.
The goal of ergo analysis is to prevent musculoskeletal disorders and injuries by making adjustments to the w...read more
Q183. Advantages of rotor?
Rotors provide mechanical advantage, increase efficiency, and allow for compact design.
Rotors provide mechanical advantage by converting rotational motion into linear motion.
They increase efficiency by reducing friction and wear compared to sliding or rubbing components.
Rotors allow for compact design in various applications such as engines, turbines, and pumps.
Examples include helicopter rotors, brake rotors in vehicles, and turbine rotors in power plants.
Q184. What is OOPS?
OOPS stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
OOPS focuses on creating objects that interact with each other to solve complex problems
It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation
Example: Inheritance allows a class to inherit properties and behavior from another class
Q185. What is 5's ?
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
Q186. What is 16 losses?
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.
Q187. Root cause analysis methods
Q188. Difference between PLC and DDC
PLC is a programmable logic controller used for industrial automation, while DDC is a direct digital control system used for building automation.
PLC is typically used in industrial settings to control machinery and processes.
DDC is commonly used in building automation systems to control HVAC, lighting, and other building systems.
PLC programming is usually ladder logic or function block diagram, while DDC programming is often done using graphical programming languages like FBD...read more
Q189. Diff between bjt,igbt,bjt,mos
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
Q190. Diffrential amplifier sum
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
Q191. Experience into Android
I have 5 years of experience developing Android applications for various industries.
Developed multiple Android apps using Java and Kotlin
Experience with Android SDK, Android Studio, and third-party libraries
Implemented features like push notifications, location-based services, and in-app purchases
Optimized app performance and user experience through testing and debugging
Worked on projects for e-commerce, healthcare, and entertainment sectors
Q192. Hydaraulics vs Pneumatics
Hydraulics use liquid to transmit power, while pneumatics use gas.
Hydraulics are typically used in heavy machinery and equipment, such as construction vehicles and hydraulic presses.
Pneumatics are commonly found in industries like manufacturing and automation, for tasks like operating pneumatic cylinders and controlling valves.
Hydraulics provide more power and precision due to the incompressibility of liquids, while pneumatics offer faster response times and are more cost-eff...read more
Q193. Supply Chain Problems
Supply chain problems can arise due to various factors such as demand fluctuations, transportation delays, and supplier issues.
Demand fluctuations can lead to overstock or stockouts, impacting inventory management.
Transportation delays can result in late deliveries, affecting production schedules.
Supplier issues like quality control or communication gaps can disrupt the supply chain flow.
Q194. Fast Formula complexity
Fast Formula complexity refers to the level of difficulty in creating and maintaining fast formulas in Oracle applications.
Fast Formulas can be simple or complex depending on the business requirements.
Complex fast formulas may involve multiple conditions, calculations, and dependencies.
Testing and debugging complex fast formulas can be time-consuming and challenging.
Proper documentation and version control are essential for managing complex fast formulas.
Examples of complex f...read more
Q195. What is fermentation
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes.
Fermentation is a metabolic process that converts carbohydrates, such as sugars and starches, into alcohol or organic acids using microorganisms like yeast or bacteria.
Common examples of fermentation include the production of beer, wine, yogurt, and bread.
Fermentation is used in various industries such as food and beverage, pharmaceuticals, and biofuel produc...read more
Q196. Resistor colour code ?
Resistor colour code is a system used to indicate the value of resistance in a resistor.
The colour code consists of bands of different colours that represent digits and multipliers.
The first two bands represent the first two digits of the resistance value.
The third band represents the multiplier (number of zeros to add to the first two digits).
The fourth band represents the tolerance of the resistor.
For example, a resistor with bands of brown, black, red, and gold would have ...read more
Q197. N+N operation of Data Centre
N+N operation refers to the redundancy of power and cooling systems in a data centre.
N+N operation means having two separate power and cooling systems in place to ensure redundancy and minimize downtime.
This setup allows for maintenance or failure of one system without affecting the overall operation of the data centre.
Examples of N+N operation include having two independent UPS systems or two separate HVAC units for cooling.
It is a common practice in data centres to ensure h...read more
Q198. Realtime problem and solution
Implementing a real-time tracking system for monitoring inventory levels and optimizing supply chain operations.
Utilize RFID technology to track inventory movement in real-time
Implement automated alerts for low stock levels to prevent stockouts
Integrate data analytics to forecast demand and optimize inventory levels
Utilize a cloud-based inventory management system for real-time updates
Implement barcode scanning for accurate and efficient inventory tracking
Q199. Future method in apex
Future method in Apex is used to run a method asynchronously in the background.
Future methods are used when we want to perform long-running operations without blocking the user interface.
They are executed in a separate thread and can be used to make callouts to external systems or perform complex calculations.
Future methods are annotated with the @future annotation and can return a value or be void.
They can be called from triggers, Visualforce controllers, or other Apex class...read more
Q200. What is selenium
Selenium is a popular open-source automation testing tool used for web application testing.
Selenium supports multiple programming languages like Java, Python, C#, etc.
It can automate web browsers and simulate user interactions.
Selenium WebDriver is the most commonly used component for writing automation scripts.
Selenium Grid allows for parallel test execution across different browsers and operating systems.
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