Rotork Controls Technical Engineer Interview Questions and Answers

Q1. Based upon experience the question is different from each other.
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Q1. Background and experience related questions
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Q1. Technical Background and field related questions
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Q1. What is oops, explain them?
Ans. 
Object-oriented programming (OOP) is a programming paradigm that uses objects to represent and manipulate data.
• OOP is based on the concept of classes and objects.

• It allows for encapsulation, inheritance, and polymorphism.

• Encapsulation hides the internal details of an object and provides a public interface.

• Inheritance allows classes to inherit properties and methods from other classes.

• Polymorphism allows objects of diff...read more
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Q2. What is difference between interface and abstract class?
Ans. 
Interface defines only method signatures while abstract class can have method implementations.
• An interface can be implemented by multiple classes while a class can extend only one abstract class.

• An abstract class can have instance variables while an interface cannot.

• An abstract class can have constructors while an interface cannot.

• An abstract class can provide default implementations for some methods while an interface...read more
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Q3. What is difference between docker and kubernet?
Ans. 
Docker is a containerization platform while Kubernetes is a container orchestration tool.
• Docker is used to create, deploy, and run applications in containers.

• Kubernetes is used to manage and orchestrate multiple containers in a cluster.

• Docker provides a way to package and distribute applications in a portable manner.

• Kubernetes provides features like automatic scaling, load balancing, and self-healing.

• Docker is a lower-...read more
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Q4. What is event emitter in angular?
Ans. 
Event emitter is a class in Angular that allows communication between components.
• Event emitter is used to emit custom events in Angular.

• It allows communication between parent and child components.

• It can be used to pass data from child to parent component.

• It is a part of the @angular/core package.

• Example: @Output() eventEmitter = new EventEmitter();
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Q5. What is view encapsulation in angular?
Ans. 
View encapsulation is a feature in Angular that allows for the creation of isolated components.
• View encapsulation ensures that styles defined in a component do not affect other components.

• There are three types of view encapsulation: Emulated, Native, and None.

• Emulated is the default and uses CSS to emulate shadow DOM.

• Native uses the browser's native shadow DOM implementation.

• None does not provide any view encapsulation
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Q6. How to communicate with components in angular?
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Components in Angular can communicate with each other using @Input, @Output, and services.
• Use @Input to pass data from parent to child component

• Use @Output to emit events from child to parent component

• Use services to share data between components that are not directly related

• Use RxJS subjects to create a shared data stream between components
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Asked Real Time Scenario to create Microservice for Train and Station information. The interviewer asked what are the properties needs to be considered for evaluating service.

Core Java 11 questions: Webservices, Improvement in JVM, Threads

Java 8: Asked to write a program based on Group By Scenario.

The interview lasts around 2 hrs.

Q1. Managerical round: Asked about current project details, The reason to join BH, Scenario based question on LinkedList vs ArrayList
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Q1. It was easy. The HR told about company policies
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Q1. Details of OoPs concept.
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Q2. Write a program using OoPs concept
Ans. 
Program using OOPs concept
• Identify the objects and their properties

• Create classes and define their methods

• Use inheritance and polymorphism

• Encapsulate data and use access modifiers

• Example: A program to simulate a bank account
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Q3. How do code review in your project
Ans. 
Code reviews are conducted regularly to ensure code quality and adherence to coding standards.
• Code reviews are conducted by peers or senior developers.

• Reviewers check for code quality, readability, maintainability, and adherence to coding standards.

• Issues found during code review are documented and addressed by the developer.

• Code reviews are conducted regularly, either before merging code or on a scheduled basis.

• Tools ...read more
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One programming challange just to see how good you use OOPs

Q1. Introduction about your work and Tech work
Ans. 
I have been working as a Software Engineer for the past 5 years, specializing in developing web applications using Java and JavaScript.
• Proficient in Java and JavaScript

• Experience in developing web applications

• Strong understanding of software development principles

• Familiarity with agile methodologies

• Knowledge of database management systems

• Experience with version control systems like Git

• Ability to work in a team and comm
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Q2. All Details of OOPs concepts
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Q3. Write a code by using OOPs technology result doesn't matter approach will be considered
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Coding Round two questions with OOPs concepts

Q1. Related to previous Job and core technical questions
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Q2. Question depend upon department
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