Vivo Graduate Engineer Interview Questions and Answers

Q1. What is polymorphism and method overriding
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data. Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
• Polymorphism allows different classes to be treated as instances of a common superclass.

• Method overriding is a feature that allows a subclass to provide a specific implementation of a method that...read more
Answered by AI
Add your answer
Q2. What is encaplusulation and explain it with an example
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and only exposing the necessary functionalities.

• It allows for better control over the data by preventing direct access from outside the class.

• An example of encapsulation is a class in object-oriented programming that has private variables and public methods
Answered by AI
Add your answer

Topic to shared the group

To learn more on the topic basics to improve my skills

Discussion of the topics

Q1. Personal questions
Add your answer
Q2. To test my skills
Add your answer

Q1. Diode IV Characteristics
Ans. 
Diode IV characteristics describe the relationship between current and voltage in a diode.
• Diode IV characteristics show that current increases exponentially with voltage in the forward bias region.

• In the reverse bias region, diode IV characteristics show a very small leakage current until the breakdown voltage is reached.

• The knee voltage is the point where the diode starts conducting significantly in the forward bias r...read more
Answered by AI
Add your answer

Q1. Regarding project
Add your answer

Basic of mechanical engineering mcq, maths and logical reasoning

Q1. 1 hour interview and the question were basic but not easy , concepts should be clear if you want to get selected
Add your answer

Basic aptitude questions like time distance, calender etc

Easy to moderate questions on arrays ,trees

Q1. Tell about urself and ur projects
Add your answer
Q2. Questions on skills mentioned in ur resume and why do u want to join our company
Add your answer

Q1. Be technical on your
Add your answer

Q1. Tell me about your self
Add your answer
Q2. About design field and technical
Add your answer

Q1. Only computer based psychometric test
Add your answer

Demonetisation a success or failure

Q1. Industrial Internship project based questions
Add your answer
Q2. Diagram of full wave bridge rectifier circuit
Ans. 
A full wave bridge rectifier circuit converts AC voltage into DC voltage using four diodes.
• Consists of four diodes arranged in a bridge configuration

• Converts both halves of the input AC waveform into DC output

• Provides higher efficiency compared to half wave rectifier

• Commonly used in power supplies and battery chargers
Answered by AI
Add your answer
Q3. Need and use of filter capacitor in rectifier circuit
Ans. 
Filter capacitor in rectifier circuit is used to smooth out the output voltage by reducing ripple and noise.
• Filter capacitor stores and releases electrical energy to reduce voltage ripple in rectified output

• It helps in converting pulsating DC output of rectifier into a smoother DC output

• Commonly used in power supplies and electronic devices to improve stability and reduce interference

• Examples include smoothing capacito...read more
Answered by AI
Add your answer
Q4. Introduction of yourself
Add your answer
Q5. What will be you approach to resolve a worker union strike over salary and working hours?
Ans. 
I would prioritize open communication, negotiation, and finding a mutually beneficial solution.
• Initiate open dialogue with union representatives to understand their concerns and demands

• Negotiate in good faith to find a compromise that addresses both the workers' needs and the company's financial constraints

• Consider involving a mediator or arbitrator to facilitate discussions and help reach a resolution

• Ensure transparen...read more
Answered by AI
Add your answer
Q6. Flexibility about being posted to pune or pondicherry plant?
Add your answer
Q7. Choice of profile- production, development and plant maintainance?
Ans. 
I am interested in the production profile as it involves hands-on work and problem-solving in a dynamic environment.
• Enjoy working on the production floor and seeing tangible results

• Like the challenge of optimizing processes and improving efficiency

• Interested in learning about lean manufacturing principles

• Have experience with production-related projects or internships
Answered by AI
Add your answer