Crane Process Flow Technologies India Lead Engineer Interview Questions and Answers

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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C, DS understanding and

C and C++ and domain knowledge

General aptitude test

Online coding test and aptitude

Q1. Dsa and memory management basics
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Q1. Puzzles and Dsa
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General Aptitude - Time Series, Probability & statistics

Q1. General Interview questions on Operator Overriding , Method Overloading
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Q1. What is pressure vessel
Ans. 
A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.
• Pressure vessels are used in various industries such as oil and gas, chemical, pharmaceutical, and food processing.

• They are designed to withstand high pressures and are typically cylindrical or spherical in shape.

• Examples include boilers, storage tanks, and compressed air tanks.
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Q2. How to design shell
Ans. 
Designing a shell involves considering factors like material, shape, size, and functionality.
• Consider the material of the shell - metal, plastic, or composite

• Determine the shape of the shell based on the intended use - cylindrical, spherical, conical, etc.

• Decide on the size of the shell to accommodate the contents it will hold

• Design the shell with the necessary functionality in mind - openings, closures, ventilation, e
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Q1. Cv, basic engineering calculation, flow analysis, gd and t, pumps seals,
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Q2. What is cv, gd and t
Ans. 
CV stands for Curriculum Vitae, GD stands for Group Discussion, and T could refer to various things depending on the context.
• CV is a document that summarizes a person's education, work experience, skills, and achievements.

• GD is a process where a group of people discuss a topic to arrive at a conclusion or solution.

• T could refer to time, temperature, or any other variable depending on the context.
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