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I applied via Company Website and was interviewed in Jul 2024. There was 1 interview round.
Vulcanisation of rubber is a chemical process that involves adding sulfur to raw rubber to improve its strength, elasticity, and durability.
Raw rubber is heated with sulfur in the presence of an accelerator, typically zinc oxide, to initiate the vulcanisation process.
The mixture is then heated to a specific temperature for a certain amount of time to allow the sulfur to cross-link with the rubber polymer chains.
This cr...
Polymerisation process of synthetic polymers involves the linking of monomer units to form long chains or networks.
Synthetic polymers are created through a chemical reaction called polymerisation.
Monomer units, which are small molecules, are linked together to form long chains or networks.
Polymerisation can be initiated by heat, light, or a catalyst.
Examples of synthetic polymers include polyethylene, polypropylene, an
Some branches of organic chemistry related to the polymer industry include polymer chemistry, polymer physics, and polymer engineering.
Polymer chemistry focuses on the synthesis and study of polymer structures.
Polymer physics deals with the physical properties and behavior of polymers.
Polymer engineering involves the design and processing of polymers for specific applications.
Chain initiation, propagation, transfer, and termination are key steps in polymerization reactions.
Chain initiation involves the formation of reactive species that can start the polymerization process.
Chain propagation is the repeated addition of monomers to the growing polymer chain.
Chain transfer involves the transfer of a growing polymer chain to another molecule, affecting the chain length.
Chain termination occurs ...
Initiator chemicals used for polymerisation include organic peroxides, azo compounds, and photoinitiators.
Organic peroxides are commonly used as initiators in polymerisation reactions.
Azo compounds are another type of initiator chemical used in polymerisation.
Photoinitiators are used in photopolymerisation processes to initiate polymerisation upon exposure to light.
Instruments commonly used for quality control in the polymer industry include spectrophotometers, rheometers, and thermal analyzers.
Spectrophotometers are used to measure the color and transparency of polymers.
Rheometers are used to measure the flow and deformation behavior of polymers.
Thermal analyzers are used to study the thermal properties of polymers, such as melting point and glass transition temperature.
A tensile testing machine measures the strength of a material by applying a pulling force until it breaks.
Calibrate the machine before testing to ensure accurate results
Secure the material in the grips of the machine
Apply a gradually increasing force until the material breaks
Record the maximum force applied before failure
Calculate the tensile strength by dividing the maximum force by the cross-sectional area of the mat
A moisture analyser is operated by placing a sample in the chamber, setting the parameters, and allowing the instrument to measure the moisture content based on the principle of loss on drying.
Place a sample of the material to be tested in the chamber of the moisture analyser.
Set the parameters such as temperature and time for the drying process.
Start the analyser to heat the sample and measure the weight loss as the m...
A colour matching cabinet is operated by setting the light source, placing the sample inside, and comparing it to standard colours.
Set the light source to the appropriate type (e.g. D65 for daylight simulation)
Place the sample to be matched inside the cabinet
Compare the sample to standard colours under controlled lighting conditions
Adjust the light intensity and angle as needed for accurate colour matching
Operating a melt flow indexer involves setting the temperature, loading the sample, and recording the melt flow index.
Set the temperature of the indexer according to the polymer being tested
Load the sample into the indexer and allow it to melt
Measure the melt flow index by recording the time it takes for the polymer to flow through the die
Some melt flow index parameters for polymers: PVC - 100-450 g/10 min, PP - 0.3-50
An impact testing machine is operated by placing the specimen between the anvils and releasing a pendulum to strike the specimen, measuring the energy absorbed.
Place the specimen between the anvils of the machine.
Release the pendulum to strike the specimen.
Measure the energy absorbed by the specimen during impact.
The principle of impact testing is to determine the ability of a material to absorb energy during fracture.
...
Operating a benchtop spectrophotometer involves understanding its principle, calibrating with known standards, and comparing color characteristics of polymers.
Understand the principle of spectrophotometry - measures the intensity of light at different wavelengths
Calibrate the spectrophotometer using known standards to ensure accurate readings
Prepare samples of the specific polymer and the known standard for comparison
M...
A viscometer is operated by filling the sample into the instrument, setting the desired parameters, and measuring the viscosity based on the principle of fluid flow resistance.
Ensure the viscometer is clean and calibrated before use.
Fill the sample into the viscometer according to the manufacturer's instructions.
Set the desired parameters such as temperature and speed of rotation.
Initiate the measurement and record the...
Operating a melting point apparatus involves setting up the sample, heating it gradually, and recording the temperature at which the sample melts.
Set up the melting point apparatus according to the manufacturer's instructions.
Place a small amount of the sample in a capillary tube and insert it into the apparatus.
Gradually heat the sample while observing it through a magnifying lens.
Record the temperature at which the s...
To operate a notch cutter, vernier caliper, and micrometer, one must have knowledge of their functions and proper handling techniques.
To operate a notch cutter, ensure the material is securely clamped and align the cutting edge with the desired notch location before cutting.
When using a vernier caliper, gently close the jaws around the object being measured and read the measurement from the scale, taking care not to ap...
A notch cutter is required before impact testing to create a standardized defect in the specimen, which helps in determining the material's toughness and resistance to fracture.
Notch cutter creates a standardized defect in the specimen
The presence of a notch helps in determining the material's toughness and resistance to fracture
Without a notch, the impact test results may not accurately reflect the material's behavior
Operating an injection molding machine involves setting up the machine, loading the material, adjusting parameters, and monitoring the process.
Set up the injection molding machine by connecting it to power and ensuring all safety measures are in place.
Load the material (such as plastic pellets) into the machine's hopper.
Adjust parameters like temperature, pressure, and injection speed based on the material being used a...
Lubricant is used in injection molding machines to reduce friction, prevent wear and tear, and improve overall machine performance.
Lubricants such as silicone oil, mineral oil, and grease are commonly used in injection molding machines.
Proper lubrication should be done at regular intervals to ensure smooth operation and prevent breakdowns.
Over-lubrication should be avoided as it can lead to contamination of the molded ...
Instruments used in quality control for polymers are calibrated using standardized procedures to ensure accuracy and reliability.
Calibration involves comparing the measurements of an instrument to known standards.
Adjustments are made to the instrument to minimize any discrepancies between the instrument's readings and the known standards.
Calibration certificates are often provided by external calibration labs to verify...
A glow-wire test apparatus is operated by heating a wire to a specified temperature and then applying it to the test sample to assess its flammability.
Turn on the glow-wire test apparatus and set the temperature to the specified level.
Place the test sample under the glow-wire.
Bring the heated wire in contact with the test sample for a specified duration.
Observe the sample's reaction to the heat and record the results.
T...
To operate a bunsen burner in a flammability cabinet for checking flame retardants in polymers, follow safety protocols, adjust the flame, place the sample in the cabinet, observe the flame behavior, and record results.
Ensure proper safety measures are in place before operating the bunsen burner.
Adjust the air and gas flow to create a blue flame with a well-defined cone.
Place the polymer sample in the flammability cabi...
Ash content can be checked using a muffle furnace and silica crucible by heating the sample to burn off organic material and weighing the residue.
Weigh the clean and dry crucible before adding the sample.
Place the sample in the crucible and heat it in the muffle furnace to burn off organic material.
Cool the crucible in a desiccator before weighing the residue to determine the ash content.
The principle is based on the f...
Young's modulus is a measure of stiffness of a material, while secant modulus is a measure of the material's response to stress. They are used to check the durability of polymers.
Young's modulus is a measure of the stiffness of a material and is defined as the ratio of stress to strain within the elastic limit.
Secant modulus is a measure of the material's response to stress and is calculated by drawing a line from the ...
Optimizing zonal phases of injection nozzle parameters for different polymers to ensure consistent mold quality.
Understand the specific requirements of each polymer in terms of temperature, pressure, screw speed, etc.
Adjust the zonal phases accordingly to meet the optimal processing conditions for each polymer.
Monitor the mold surface for any signs of bubble formation, excess flash, uneven surface, or polymer residues.
...
Cleaning and purging the injection molding machine before test molding a different polymer material is important to prevent contamination and ensure product quality.
Prevents contamination of the new polymer material with remnants of the previous material
Ensures consistent product quality by removing any residue or impurities from the machine
Helps prevent defects in the final product caused by mixing different materials
...
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I was interviewed in Dec 2024.
I was interviewed in Jul 2024.
Typically includes an executive summary, background information, a discussion of the findings, proposed solutions, and a conclusion. This reply all questions in detail with studies program
I was interviewed in Dec 2024.
I was interviewed in Jul 2024.
This was an assessment of skills and abilities.
posted on 6 Jan 2025
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
The number of variances in SAP can vary depending on the specific processes and transactions being analyzed.
The number of variances in SAP can be influenced by factors such as data entry errors, system glitches, or discrepancies in invoice processing.
Variances in SAP may be identified through reconciliation processes, exception reports, or manual reviews of accounts payable transactions.
Examples of variances in SAP inc...
Accounts receivable and accounts payable are two important aspects of a company's financial operations.
Accounts receivable refers to money owed to a company by its customers for goods or services provided.
Accounts payable refers to money owed by a company to its suppliers or vendors for goods or services received.
Accounts receivable is an asset on the balance sheet, while accounts payable is a liability.
Managing accoun...
Cost element and cost center are key concepts in accounting for tracking and allocating costs within an organization.
Cost element refers to the specific types of costs incurred by an organization, such as materials, labor, or overhead.
Cost center is a specific department, team, or function within an organization that is responsible for incurring costs.
Cost elements are assigned to cost centers to track and allocate cos...
SAP supports over 160 currencies worldwide.
SAP supports over 160 currencies for global transactions.
Currencies can be configured in SAP using transaction code OB22.
Each currency is assigned a unique currency code (e.g. USD for US Dollar, EUR for Euro).
There are various types of projects, including internal projects, external projects, research projects, and development projects.
Internal projects focus on improving processes within the organization.
External projects involve working with external partners or clients.
Research projects aim to gather data and analyze findings.
Development projects focus on creating new products or services.
Examples: IT system implementati...
I applied via Company Website and was interviewed in Nov 2024. There were 13 interview rounds.
The Entity-Relationship (ER) model is a data model used to describe the relationships between entities in a database.
Entities are objects or concepts in the real world that can be distinguished from each other.
Relationships describe how entities are related to each other.
Attributes are properties that describe entities and relationships.
ER diagrams visually represent the ER model, showing entities, relationships, and a...
Threads are lighter weight than processes, share memory space, and are more efficient for multitasking.
Threads share the same memory space, making communication between them faster and more efficient.
Threads are lighter weight than processes, as they share resources such as memory and file descriptors.
Threads are more efficient for multitasking, as they can run concurrently within the same process.
Threads are easier to...
Google primarily focuses on pure data structures and algorithms-based questions during coding interviews. Other computer science core topics are typically not covered in Google's interviews. Therefore, it is essential to be proficient in data structures and algorithms to succeed in the Google coding interview.
An aptitude test is a tool used to evaluate a person's skills, abilities, and potential for success in a specific role or activity.
Group discussion is a process of exchanging ideas and opinions among individuals on a specific topic. It is a structured form of communication in which participants have the opportunity to express their views while also listening to others' perspectives on the same subject.
My strengths include problem-solving skills and attention to detail. My weaknesses include time management and public speaking.
Strengths: problem-solving skills
Strengths: attention to detail
Weaknesses: time management
Weaknesses: public speaking
I have a strong foundation in web development, a passion for learning, and a proven track record of delivering high-quality projects.
I have a solid understanding of HTML, CSS, and JavaScript
I am proficient in using various web development tools and frameworks such as React and Node.js
I have successfully completed several web development projects, including a responsive e-commerce website for a local business
An assignment is a task or piece of work that you are given to complete, particularly as part of your job or studies. The assignment for the course includes written assignments and practical tests, similar to tasks, work, jobs, or charges.
A case study is a detailed description and assessment of a specific situation in the real world, created for the purpose of deriving generalized insights and understanding. It can focus on an individual, a group of people, an organization, or an event, among other subjects.
My greatest accomplishment was successfully leading a team to launch a new website for a major client ahead of schedule.
Successfully led a team to launch a new website
Completed the project ahead of schedule
Received positive feedback from the client
I am motivated by challenges, learning opportunities, and the ability to make a positive impact.
Challenges push me to grow and improve my skills.
Learning opportunities allow me to stay updated with the latest technologies and trends.
Making a positive impact through my work gives me a sense of fulfillment and purpose.
My ideal work environment is a collaborative space with supportive colleagues, opportunities for growth, and a healthy work-life balance.
Collaborative team environment where ideas are shared and valued
Supportive colleagues who are willing to help and provide feedback
Opportunities for growth and learning new technologies
Healthy work-life balance with flexible hours and remote work options
By creating a positive work environment, offering growth opportunities, and implementing employee recognition programs.
Creating a positive work environment through open communication and support
Offering growth opportunities such as training programs and career advancement
Implementing employee recognition programs to acknowledge and reward hard work
Providing competitive salaries and benefits to attract and retain top ta
Real-time operating systems are designed to provide predictable response times and prioritize tasks based on timing constraints.
Real-time operating systems prioritize tasks based on timing constraints
They are designed to provide predictable response times
Examples include VxWorks, QNX, and FreeRTOS
Yes, I am comfortable working night shifts to support international clients.
I have previous experience working night shifts in a customer service role.
I am a night owl and tend to be more productive during late hours.
I understand the importance of supporting international clients and am willing to adjust my schedule accordingly.
Operational tasks for maintaining efficiency and quality include regular testing, monitoring performance, updating software, and implementing best practices.
Regularly test website functionality to ensure it is working properly
Monitor website performance metrics such as load times and user experience
Update software and plugins to the latest versions to prevent security vulnerabilities
Implement best practices for coding,
Prepare examples showcasing leadership, conflict resolution, and prioritization skills for a managerial round interview.
Leadership: Discuss a project where you led a team to success, highlighting your ability to motivate and guide others.
Conflict Resolution: Share a situation where you successfully resolved a conflict within a team or project, emphasizing your communication and problem-solving skills.
Prioritization: Ta...
I demonstrate adaptability, leadership, and commitment by actively seeking feedback, taking on new challenges, and fostering collaboration within the team.
Seek feedback from colleagues and supervisors to continuously improve
Volunteer for new projects or tasks to expand skills and knowledge
Encourage open communication and teamwork among team members
Lead by example by showing a positive attitude and willingness to help o...
SCD Type 2 implementation involves tracking historical changes in data by creating new records for each change.
Identify the columns that need to be tracked for changes
Add effective start and end dates to track the validity of each record
Insert new records for changes and update end dates for previous records
Maintain a surrogate key to uniquely identify each version of the record
I can join the team within 2 weeks.
I can start within 2 weeks of receiving the offer.
I need to give notice to my current employer.
I may need to relocate, which could affect my start date.
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
Custom hooks in React are reusable functions that allow you to extract component logic into separate functions for better code organization and reusability.
Custom hooks are created using the 'use' prefix and can be used to share logic between components.
Use cases for custom hooks include fetching data from an API, handling form state, managing local storage, and more.
Example of a custom hook for API call: const useFetc...
useMemo is used to memoize a value, while useCallback is used to memoize a function.
useMemo is used to memoize a value and recompute it only when its dependencies change.
useCallback is used to memoize a callback function and prevent unnecessary re-renders.
Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize an event handler function.
Class-based components use ES6 classes and have lifecycle methods, while functional components are simpler and use functions.
Class-based components use ES6 classes to create components, while functional components are created using functions.
Class-based components have lifecycle methods like componentDidMount and componentDidUpdate, while functional components do not.
Functional components are simpler and more lightweig...
Implementing the lifecycle of a React component in a functional component
Use the useEffect hook to replicate lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount
Pass an empty array as the second argument to useEffect to mimic componentDidMount
Pass a variable or state as the second argument to useEffect to mimic componentDidUpdate
Return a cleanup function inside useEffect to mimic compo
Various state management techniques in React include Context API, Redux, and local state.
Context API: React's built-in solution for passing data through the component tree without having to pass props down manually at every level.
Redux: A popular state management library for React applications, allowing for a centralized store to manage application state.
Local state: Managing state within individual components using us
Redux is a predictable state container for JavaScript apps. Middlewares are functions that intercept actions before they reach the reducer.
Redux follows a unidirectional data flow architecture.
Middlewares in Redux are functions that can intercept, modify, or dispatch actions.
Common use cases for middlewares include logging, asynchronous API calls, and handling side effects.
Examples of popular Redux middlewares are Redu...
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
Variable declarations are hoisted to the top of their scope, but not their initializations.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
Event bubbling is the propagation of events from the target element up through its ancestors in the DOM tree.
Events triggered on a child element will 'bubble up' and trigger on parent elements.
Event listeners can be attached to parent elements to handle events from multiple child elements.
Stopping event propagation can be done using event.stopPropagation() or event.stopImmediatePropagation().
Block scope and function scope are two types of scopes in JavaScript that determine the visibility and accessibility of variables.
Block scope refers to the visibility of variables within a block of code enclosed by curly braces. Variables declared with 'let' and 'const' have block scope.
Function scope refers to the visibility of variables within a function. Variables declared with 'var' have function scope.
Variables de...
Yes, I have experience working with semantic tags in HTML.
Used semantic tags like <header>, <nav>, <main>, <section>, <article>, <aside>, <footer> for better structure and SEO.
Understand the importance of using semantic tags for accessibility and search engine optimization.
Semantic tags help in organizing content and making it more readable for developers and browsers.
Various methods for creating an object in JavaScript include object literals, constructor functions, ES6 classes, and Object.create() method.
Object literals: var obj = { key: value };
Constructor functions: function ObjectName() { this.key = value; } var obj = new ObjectName();
ES6 classes: class ClassName { constructor() { this.key = value; } } var obj = new ClassName();
Object.create() method: var obj = Object.create(pr
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects, only copies their references.
Deep copy creates a new object and also creates new copies of all nested objects.
Shallow copy can be achieved using Object.assign() or spread operator, while deep copy can be achieved using JSON.parse(
The code will throw an error because 'a' is declared but not initialized.
The code will result in a ReferenceError because 'a' is declared but not assigned a value.
Variables declared with 'const' must be initialized at the time of declaration.
Initializing 'a' with a value before calling test() will prevent the error.
CSS can be used to arrange elements in a row and column layout using flexbox or grid layout properties.
Use display: flex; for a row layout and display: flex; flex-direction: column; for a column layout
Use justify-content and align-items properties to align items in the main axis and cross axis respectively
For grid layout, use display: grid; and grid-template-columns or grid-template-rows to define the layout
Yes, I have utilized CSS preprocessors such as SASS and LESS.
I have experience using SASS to streamline my CSS workflow by utilizing variables, mixins, and nesting.
I have also worked with LESS to improve code organization and maintainability through features like variables and functions.
The color applied will be based on the specificity of the selector, with ID having higher specificity than class.
ID has higher specificity than class in CSS
Color applied will be based on the selector with higher specificity
Example: If ID selector has color red and class selector has color blue, the color applied will be red
I was interviewed in Dec 2024.
PROJECTS
Multi-Source Medical Data Integration & Management for Healthcare Services
01/2023-06/2023
Guntur, Andhra Pradesh, India
A project focused on integrating medical data for healthcare services.
Developed a web application to integrate medical data from multiple sources, enabling efficient data management in healthcare services.
Designed and implemented RESTful APIs for data interaction and integration,
Utlized Django for backend development, ensuring scalability and maintainability
Implemented data validation and security protocols to ensure the protection of patient information.
Streamlined medical records and information fhow to enhance healthcare service efficiency
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