50+ Experion Technologies Interview Questions and Answers

Yes, I am familiar with Digital Multimeter and can demonstrate its usage for different components.

• For HV diode, set the multimeter to resistance mode and connect the probes to the diode terminals. The multimeter should show a low resistance value in one direction and high resistance in the other direction.

• For HV capacitor, set the multimeter to capacitance mode and connect the probes to the capacitor terminals. The multimeter should show the capacitance value.

• For Industrial X...read more

Proximity sensors are devices that detect the presence or absence of an object within a certain range.

• Proximity sensors use various technologies such as capacitive, inductive, ultrasonic, and optical to detect objects.

• Capacitive proximity sensors detect objects by measuring changes in capacitance when an object enters the sensor's electric field.

• Inductive proximity sensors use electromagnetic fields to detect metallic objects without physical contact.

• Ultrasonic proximity sens...read more

Connect one relay to each push button and motor, and connect the relays in parallel to the SMPS for forward and reverse operation.

• Connect one relay to each push button and motor

• Connect the relays in parallel to the SMPS

• Use the push buttons to control the relays and thus the motor direction

Power factor is a measure of how effectively electrical power is being used. It can be improved by using power factor correction techniques.

• Power factor is the ratio of real power to apparent power in an electrical system.

• It indicates the efficiency of electrical power usage.

• A power factor of 1 indicates all the power is being used effectively, while a power factor less than 1 indicates inefficiency.

• Power factor can be improved by using power factor correction techniques such...read more

Singleton Design Pattern ensures only one instance of a class exists. No, we cannot create a clone of an object from singleton class.

• Singleton pattern restricts the instantiation of a class to one object.

• It is used when only one object is required to coordinate actions across the system.

• The instance is created only when it is requested for the first time.

• The constructor of the singleton class is private.

• Clone method is not supported in singleton pattern.

There are several companies that produce PLCs. I have experience with Siemens and Allen Bradley PLCs.

• Siemens and Allen Bradley are two of the most popular PLC manufacturers

• I have experience running programs on both Siemens and Allen Bradley PLCs

• Siemens TIA Portal and Allen Bradley Studio 5000 are both user-friendly software for programming PLCs

Servo motors are used for high precision control while stepper motors are used for low speed and high torque applications.

• Servo motors have a closed-loop system while stepper motors have an open-loop system.

• Servo motors have higher accuracy and precision than stepper motors.

• Stepper motors have a higher torque output than servo motors.

• Servo motors are more expensive than stepper motors.

• Examples of servo motors include AC servo motors and DC servo motors while examples of stepp...read more

We are using Java 11 and Spring Boot 2.4.3 in our current project.

• Java 11 provides better performance and security features compared to previous versions.

• Spring Boot 2.4.3 offers improved support for Kotlin and GraalVM.

• We are also using Spring Data JPA for database access and Spring Security for authentication and authorization.

Maven is a build automation tool used primarily for Java projects. It manages dependencies and builds the project.

• Maven is based on the concept of POM (Project Object Model) which describes the project dependencies, build process, and other configurations.

• Maven has different cycles such as validate, compile, test, package, verify, install, and deploy.

• The validate cycle checks if the project is correct and all necessary information is available.

• The compile cycle compiles the s...read more

Find min and max from List of Integers using Java 8 streams.

• Use the `stream()` method on the List to create a stream of integers.

• Use the `min()` method to find the minimum value.

• Use the `max()` method to find the maximum value.

Find 2nd largest element using Java 8 streams from a list of integers.

• Sort the list of integers in descending order using streams.

• Skip the first element to get the second largest element.

Increase the values of a list of integers by 2 and create a new list.

• Iterate through the list of integers

• For each integer, add 2 to its value

• Create a new list with the updated values

Mutable classes in Java are classes whose state can be modified after creation.

• Mutable classes allow changing their internal state

• They can have mutable fields or methods that modify their state

• To create a mutable class, define fields with non-final modifiers

• Provide public methods to modify the state of the class

Triggers are database objects that automatically execute in response to certain events. Stored procedures are precompiled SQL statements.

• Triggers are used to enforce business rules or to audit changes to data.

• Stored procedures are used to encapsulate frequently used SQL statements for reuse and to improve performance.

• Triggers can be used to update related tables when a record is inserted, updated, or deleted.

• Stored procedures can be used to perform complex data manipulations ...read more

To determine the location of a broken fiber, I would use an OTDR and then fix it by splicing or replacing the damaged section.

• Use an Optical Time Domain Reflectometer (OTDR) to analyze the fiber and locate the break.

• Once the break is identified, the damaged section can be spliced back together or replaced.

• Splicing involves fusing the two ends of the fiber together using a fusion splicer.

• If the break is severe or in an inaccessible location, the entire fiber may need to be rep...read more

Java has introduced several new features in recent versions.

• Java 8 introduced lambda expressions, which allow for functional programming.

• Java 8 also introduced the Stream API for processing collections of data.

• Java 9 introduced the module system, which provides better encapsulation and modularity.

• Java 10 introduced local variable type inference, allowing the omission of explicit type declarations.

• Java 11 introduced the HttpClient API for making HTTP requests.

• Java 12 introduce...read more

Program to reverse sort keys in HashMap

• Create a List from the keySet() of the HashMap

• Sort the List in reverse order using Collections.sort()

• Iterate through the sorted List and add the keys to a new LinkedHashMap

• Return the LinkedHashMap

OLT is a device used by service providers to connect multiple ONTs to their network.

• OLT stands for Optical Line Terminal

• It is used by service providers to connect multiple ONTs to their network

• OLT is located at the service provider's central office or data center

• ONT stands for Optical Network Terminal

• It is located at the customer's premises and connects to the OLT

• ONT is responsible for converting optical signals to electrical signals and vice versa

CI/CD is a software development practice that enables frequent and automated code integration, testing, and deployment.

• CI/CD stands for Continuous Integration and Continuous Deployment.

• It involves automating the process of integrating code changes, running tests, and deploying the application.

• CI/CD helps in reducing manual errors, improving code quality, and increasing development speed.

• Tools like Jenkins, GitLab CI/CD, and Travis CI are commonly used for implementing CI/CD p...read more

Answering questions related to Fiber Execution Engineer job interview.

• Duct thickness should be determined based on the type of fiber optic cable being used.

• HDD (Horizontal Directional Drilling) can be done by following a step-by-step process that includes site preparation, drilling, and pulling the cable.

• To resolve issues with vendors or others, effective communication and problem-solving skills are necessary. It's important to identify the root cause of the issue and work co...read more

There are two main types of motors: AC motors and DC motors.

• AC motors: synchronous and asynchronous

• DC motors: brushed and brushless

• Other types: stepper, servo, linear, etc.

• Motors can also be classified by their power source, size, and application

OTDR stands for Optical Time Domain Reflectometer. It is a device used to measure the characteristics of an optical fiber.

• OTDR is commonly used in the telecommunications industry to troubleshoot and maintain fiber optic networks.

• It sends a series of light pulses into the fiber and measures the time and intensity of the reflections to determine the length, loss, and quality of the fiber.

• OTDR can locate faults, such as breaks or bends, in the fiber and provide a graphical repre...read more

The database is configured by setting up the necessary parameters and configurations to ensure proper functioning and performance.

• Database configuration involves defining the database schema, tables, and relationships.

• It includes setting up indexes and constraints for data integrity.

• Configuring database security measures like user access control and permissions.

• Tuning database performance by optimizing query execution and resource allocation.

• Choosing appropriate storage engin...read more

Dockerfile is a text file that contains instructions to build a Docker image.

• Dockerfile is used to automate the creation of Docker images.

• It specifies the base image, dependencies, environment variables, and commands to run.

• Each instruction in the Dockerfile creates a new layer in the image.

• Dockerfile can be version controlled and shared to ensure consistent builds.

• Example: FROM ubuntu:latest RUN apt-get update && apt-get install -y python3

• Example: COPY app.py /app WORKDIR /a...read more

LSPM stands for Local Service Provider Management.

• LSPM is a system or process used to manage and coordinate local service providers.

• It involves selecting, contracting, and overseeing the performance of local service providers.

• LSPM ensures that local service providers meet the required standards and deliver quality services.

• Examples of local service providers include contractors, vendors, and suppliers.

• LSPM helps in optimizing costs, improving efficiency, and maintaining servi...read more

HTTP2 is faster, more efficient, and supports multiplexing and server push.

• HTTP2 uses binary instead of text format for better performance.

• HTTP2 supports multiplexing, allowing multiple requests to be sent and received at the same time.

• HTTP2 also supports server push, where the server can send resources to the client before they are requested.

• HTTP2 has header compression, reducing the amount of data that needs to be sent.

• HTTP2 requires SSL/TLS encryption for security.

• HTTP1.1 ...read more

Springboot annotations are used to simplify the development process and provide additional functionality.

• Annotations like @RestController and @RequestMapping are used to create RESTful web services.

• @Autowired is used for dependency injection.

• @Transactional is used to manage transactions.

• @Component is used to mark a class as a Spring component.

• @Value is used to inject values from properties files or environment variables.

• @Scheduled is used to schedule tasks to run at specific ...read more

Process engineering involves designing, optimizing, and controlling processes to improve efficiency and quality.

• Process engineering focuses on analyzing and improving processes to increase efficiency and quality.

• It involves designing and implementing systems to optimize production processes.

• Process engineers use tools like process simulation, data analysis, and optimization techniques.

• Examples include optimizing manufacturing processes to reduce waste and improve output, or d...read more

Quality assurance is the process of ensuring that a product or service meets the desired level of quality.

• 7QC tools are used to identify and solve quality problems

• The tools include Pareto chart, cause-and-effect diagram, control chart, histogram, scatter diagram, flowchart, and check sheet

• QA involves creating and implementing processes and procedures to prevent defects and improve quality

• It also involves testing and evaluating products or services to ensure they meet the desi...read more

Availability refers to the state of being ready for use or accessible. Invoices in accounting are used to track financial transactions. Rebates are discounts given after a purchase. Cash sales are transactions made with immediate payment. Rush orders are orders that need to be processed quickly.

• Availability is the state of being ready for use or accessible

• Invoices in accounting are used to track financial transactions

• Rebates are discounts given after a purchase

• Cash sales are ...read more

The @Component and @Repository annotations are used in Spring Framework for different purposes.

• Both annotations are used to define beans in the Spring container.

• @Component is a generic stereotype annotation for any Spring-managed component.

• @Repository is a specialization of @Component used for DAO classes.

• The @Repository annotation provides additional exception translation for data access exceptions.

• Using @Repository is a good practice for separating the data access layer fro...read more

Use SQL query with ORDER BY and LIMIT to find the last element in a table.

• Use ORDER BY column_name DESC to sort the data in descending order.

• Use LIMIT 1 to retrieve only the last element.

Process qualifications are necessary to ensure consistency, quality, and compliance in operations.

• Process qualifications help in standardizing procedures for consistent results.

• They ensure that operations meet quality standards and regulatory requirements.

• Qualifications also help in identifying and addressing potential risks and deviations.

• They provide a framework for continuous improvement and optimization of processes.

The @Entity annotation is used in Java to mark a class as an entity, which represents a table in a relational database.

• The @Entity annotation is part of the Java Persistence API (JPA) and is used in object-relational mapping (ORM) to map Java objects to database tables.

• It is typically used in conjunction with other JPA annotations like @Table, @Column, and @Id.

• The @Entity annotation is used to define the entity name, specify the table name, and configure various attributes of...read more

Soil types can vary greatly and are classified based on their composition, texture, and fertility.

• Soil types include clay, silt, sand, loam, and peat.

• Clay soil is heavy and retains water, while sandy soil is loose and drains quickly.

• Loam soil is a balanced mixture of clay, silt, and sand, ideal for plant growth.

• Soil fertility is determined by its nutrient content and organic matter.

• Different soil types require different management practices for construction or agriculture.

Design considerations for castings

• Selection of appropriate casting method

• Designing for proper material flow and solidification

• Proper gating and riser design

• Consideration of parting line and draft angles

• Designing for minimum machining requirements

• Selection of appropriate material and heat treatment

• Consideration of casting defects and how to prevent them

Yes, I am comfortable with relocation.

• I have relocated for work in the past and have found it to be a positive experience.

• I am open to exploring new locations and cultures.

• I understand that relocation may be necessary for career growth and development.

• I am willing to consider relocation on a case-by-case basis.

Joins in SQL are used to combine data from two or more tables based on a related column.

• Joins are used to retrieve data from multiple tables in a single query

• Types of joins include inner join, left join, right join, and full outer join

• Join conditions are specified using the ON keyword and can include multiple conditions

• Aliases can be used to simplify the syntax of join queries

Fiber and OFC are used for high-speed data transmission over long distances.

• Fiber optic cables use light to transmit data, while OFC uses electrical signals.

• Fiber optic cables are made of glass or plastic fibers, while OFC uses copper wires.

• Fiber optic cables are immune to electromagnetic interference, while OFC is susceptible to it.

• Fiber optic cables can transmit data over longer distances than OFC.

• Examples of fiber optic applications include internet, cable TV, and telephon...read more

Sheet metal design considerations include material selection, bend radius, hole size, and tolerances.

• Choose the appropriate material for the application

• Ensure proper bend radius to avoid cracking or deformation

• Consider hole size and placement for optimal functionality

• Determine tolerances for accurate and consistent production

• Account for any necessary finishing processes such as painting or coating

Casting design consideration is important for ensuring the quality and integrity of the final product.

• Selection of appropriate casting material

• Designing the mold to avoid defects like shrinkage, porosity, and cracks

• Proper gating and riser design to ensure proper flow of molten metal

• Consideration of post-casting processes like heat treatment and machining

• Designing for ease of manufacturing and assembly

Worked as an intern at XYZ Company, gained hands-on experience in various engineering tasks.

• Assisted senior engineers in designing and testing new products

• Participated in team meetings and contributed ideas for process improvement

• Learned to use CAD software to create 3D models of components

• Helped with assembly and installation of equipment at client sites

• Developed skills in troubleshooting and problem-solving

Inheritance in Java allows a class to inherit properties and behaviors from another class.

• Inheritance is achieved using the 'extends' keyword in Java.

• Subclasses can access the methods and fields of their superclass.

• Java does not support multiple inheritance, but a class can implement multiple interfaces.

HTML5 is the latest version of HTML with new features and improvements.

• HTML5 supports new elements like <video>, <audio>, and <canvas> for multimedia content.

• HTML5 introduces new APIs like Geolocation, Web Storage, and Web Workers for enhanced functionality.

• HTML5 includes improvements in semantics, accessibility, and performance compared to HTML.

1550 and 1310 wavelengths are both used in optical fiber communication, but have different properties.

• 1550 wavelength has lower attenuation and dispersion compared to 1310 wavelength

• 1550 wavelength is used for long-haul communication while 1310 wavelength is used for short-haul communication

• 1550 wavelength is less affected by fiber non-linearities compared to 1310 wavelength

• 1310 wavelength is cheaper to produce compared to 1550 wavelength

Fiber is a type of carbohydrate that the body cannot digest. There are two main types of fiber: soluble and insoluble.

• Soluble fiber dissolves in water and can help lower cholesterol and regulate blood sugar levels. Examples include oats, beans, and fruits.

• Insoluble fiber does not dissolve in water and helps with digestion by adding bulk to the stool. Examples include whole grains, nuts, and vegetables.

Air dryers are devices used to remove moisture from compressed air to prevent corrosion and damage to equipment.

• Types of air dryers include refrigerated dryers, desiccant dryers, and membrane dryers

• Refrigerated dryers work by cooling the air to condense and remove moisture

• Desiccant dryers use a material like silica gel to absorb moisture from the air

• Membrane dryers rely on a membrane to selectively permeate water vapor out of the air

• Proper maintenance and regular servicing of...read more

Sterlite is a global manufacturing company specializing in metals, mining, and energy production.

• Sterlite Industries is a subsidiary of Vedanta Resources, a multinational mining and metals company.

• The company operates copper smelters, refineries, and power plants in India and Australia.

• Sterlite is known for its controversial environmental and social impact, particularly in India where protests have been held against its operations.

Expectations for a Department Manager include leadership, organization, communication, and problem-solving skills.

• Lead and motivate team members to achieve department goals

• Organize and prioritize tasks to ensure efficiency

• Communicate effectively with team members, upper management, and other departments

• Problem-solve and make decisions to address challenges and improve processes

The expectation is to effectively perform the duties and responsibilities of a Process Associate in the security department.

• Understanding and following security protocols and procedures

• Monitoring and responding to security alerts and incidents

• Maintaining accurate records and reports

• Coordinating with team members and other departments

• Continuously improving security measures and practices

PGI stands for Post Graduate Institute. It is a term commonly used in educational and medical fields.

• PGI refers to a postgraduate institute or program, typically in the medical field.

• PGI can also stand for Post Graduate Institute of Medical Education and Research (PGIMER) in India.

• It is a prestigious institution known for its medical education and research programs.

Modulation is the process of varying a carrier signal's properties to transmit information.

• Modulation involves changing one or more properties of a high-frequency carrier signal to encode information.

• Common types of modulation include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM).

• Modulation is used in various communication systems such as radio broadcasting, television broadcasting, and wireless networking.