N K Buildcon Hydraulic Design Engineer Interview Questions and Answers

Q1. Iron Carbon Diagram ? Shaft Calculations ?
Ans. 
Iron Carbon Diagram is a graphical representation of the phases of iron and carbon at different temperatures. Shaft calculations involve determining the dimensions and material properties of a shaft for a specific application.
• Iron Carbon Diagram shows the phases of iron and carbon at different temperatures, helping in understanding the behavior of steel.

• Shaft calculations involve determining the dimensions (diameter, l...read more
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Q2. What is GD & T for drawn image ?
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing, a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of part features.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to communicate design requirements.

• GD&T helps ensure that parts fit together properly and function as intended.

• It is commonly used in ...read more
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Q1. Software skills much required for design engineer job
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Q1. -Where do you see yourself after 5 years? -What are your strengths and weaknesses? -Can you briefly introduce yourself? -Why Xylem?
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Q1. Electrical Design Related
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Q1. Electrical power
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Q1. What is real dom and virtual dom in react
Ans. 
Real DOM is the actual representation of the HTML structure, while Virtual DOM is a lightweight copy used for efficient updates.
• Real DOM is slower as it directly manipulates the HTML structure.

• Virtual DOM is faster as it updates the lightweight copy and then syncs with the real DOM.

• React uses the Virtual DOM to minimize unnecessary re-rendering of components.

• Virtual DOM allows for efficient batch updates, improving per...read more
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There were 6 questions to be solved. 3 average and 3 tough questions.

Q1. Concepts ask in interview Java Threads Exception Collections Spring boot annotations Git
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Q1. A general conversations, regarding my experience, project.
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Q1. Write unit testing for adding two nimbers
Ans. 
Unit testing for adding two numbers
• Create a test case with two numbers and expected sum

• Call the function that adds two numbers

• Assert that the result matches the expected sum
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Q1. Explain challenge you faced in your last project
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Q1. Salary expectations
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