EMERSON PROCESS MANAGEMENT Graduate Engineer Interview Questions and Answers

Q1. About Resume Projects
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Q2. What are triggers in sql
Ans. 
Triggers in SQL are special stored procedures that are automatically executed when certain events occur in a database.
• Triggers can be used to enforce business rules, maintain referential integrity, and audit changes to data.

• Examples of triggers include BEFORE INSERT, AFTER UPDATE, and INSTEAD OF DELETE.

• Triggers can be defined at the table level and can be set to execute before or after an event.
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Q1. Preorder , post-order and in-order traversal of tree
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Tree traversal methods in computer science
• In-order traversal: Left, Root, Right

• Pre-order traversal: Root, Left, Right

• Post-order traversal: Left, Right, Root

• Example: In-order traversal of tree with nodes 1, 2, 3 would be 1, 2, 3
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Q2. Hashmap can the key value be an object?
Ans. 
Yes, the key value in a Hashmap can be an object.
• In Java, the key in a Hashmap can be any object, not just primitive types.

• The key must override equals() and hashCode() methods for proper functioning.

• Example: HashMap employeeMap = new HashMap<>();
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Q1. Introduce you self
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I am a passionate and dedicated software engineer with experience in web development and problem-solving skills.
• Experienced in HTML, CSS, JavaScript, and various web development frameworks

• Strong problem-solving and analytical skills

• Excellent communication and teamwork abilities

• Completed multiple projects including a responsive website for a local business
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Q2. What is your project
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My project is a mobile application that helps users track their daily water intake and reminds them to stay hydrated.
• Allows users to set daily water intake goals

• Sends notifications to remind users to drink water throughout the day

• Tracks water consumption history for users to review

• Provides visual representation of daily water intake progress
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Basic of General aptitude

Q1. Questions on education background
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Q2. Engineering subjects questions like formula, calculation, units, drawing reading
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Q1. Why should we hire you
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Q2. Are you working in shift
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Q1. Tell me about your projects.
Ans. 
I have worked on various projects during my engineering studies, including a solar-powered car prototype and a smart home automation system.
• Solar-powered car prototype: Designed and built a small-scale model of a car that runs on solar energy. Conducted experiments to optimize the efficiency of the solar panels and battery storage.

• Smart home automation system: Developed a system using Arduino and sensors to automate va...read more
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Q2. Have you worked with any Database.
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Yes, I have worked with databases.
• I have experience working with SQL and NoSQL databases.

• I have worked with MySQL, MongoDB, and Oracle databases.

• I have experience in creating and managing databases, writing queries, and optimizing performance.

• I have also worked with data migration and integration between different databases.
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Q3. How to select top 10 records (using SQL) from a table?
Ans. 
How to select top 10 records (using SQL) from a table?
• Use SELECT statement with ORDER BY clause

• Add DESC keyword to sort in descending order

• Use LIMIT or FETCH FIRST clause to limit the number of records
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Q4. Can we have multiple inheritance in Java? How?
Ans. 
Yes, Java supports multiple inheritance through interfaces.
• Java does not support multiple inheritance through classes

• Interfaces can be used to achieve multiple inheritance

• A class can implement multiple interfaces

• Example: class A implements Interface1, Interface2
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Q1. Do you have any plans for higher studies?
Ans. 
Yes, I have plans for higher studies.
• I am interested in pursuing a Master's degree in Mechanical Engineering.

• I have already started researching potential universities and programs.

• I plan to specialize in the field of renewable energy.

• Higher studies will provide me with advanced knowledge and skills to excel in my career.

• I believe that continuous learning is essential for professional growth.
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Q2. Why do you want to join our company
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I want to join your company because of its strong reputation in the industry and the opportunities for growth and development it offers.
• Strong reputation in the industry

• Opportunities for growth and development

• Alignment with company values and culture
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Q1. Basic branch related questions, example is Electronics bg: aec,ld,ckt theory
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Q2. Interested domain and question on it
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Q3. Personal interests ,hobbies
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