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ARAV Systems Interview Questions and Answers

Updated 7 Nov 2024
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Q1. What is the moment of inertia for a circular cross sectional part

Ans.

The moment of inertia for a circular cross sectional part depends on its radius and mass distribution.

  • The moment of inertia is a measure of an object's resistance to rotational motion.

  • For a circular cross section, the moment of inertia is given by (π/4) x r^4, where r is the radius.

  • The mass distribution of the part also affects the moment of inertia.

  • A solid cylinder has a higher moment of inertia than a hollow cylinder with the same mass and radius.

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Q2. Stress strain curve of Fe vs Al

Ans.

Fe has higher yield strength and ultimate strength than Al, but Al has higher ductility.

  • Fe has a steeper slope in the elastic region than Al

  • Al has a longer plastic region than Fe

  • Fe has a higher yield strength and ultimate strength than Al

  • Al has higher ductility than Fe

  • Fe undergoes more brittle fracture than Al

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Q3. Write a program for sorted array?

Ans.

Program to sort an array of strings in alphabetical order.

  • Use a sorting algorithm like bubble sort, selection sort, or merge sort.

  • Iterate through the array comparing adjacent elements and swapping if necessary.

  • Ensure the array is sorted in ascending order.

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Q4. Laws of Thermodynamics

Ans.

Laws governing energy transfer and transformation in physical systems.

  • First law: Energy cannot be created or destroyed, only transferred or transformed.

  • Second law: Entropy of a closed system always increases over time.

  • Third law: Absolute zero cannot be reached through a finite number of steps.

  • Applications in engineering, physics, and chemistry.

  • Examples include refrigeration, power generation, and chemical reactions.

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Q5. Strength of materials

Ans.

Strength of materials refers to the study of the behavior of solid objects under various types of forces.

  • Strength of materials involves analyzing how materials deform and break under different loads.

  • It is important in engineering to ensure that materials used in structures can withstand the expected forces.

  • Factors such as material properties, geometry, and loading conditions all play a role in determining the strength of a material.

  • Examples include calculating the maximum str...read more

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Q6. Date & time in javascript

Ans.

Date & time manipulation in JavaScript

  • Use the Date object to work with dates and times in JavaScript

  • Get the current date and time using new Date()

  • Format dates using methods like toLocaleString() or toISOString()

  • Perform calculations with dates using methods like getTime() and setDate()

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Interview Process at ARAV Systems

based on 22 interviews
4 Interview rounds
Aptitude Test Round
Technical Round - 1
Technical Round - 2
HR Round
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