Polaris Java Developer Intern Interview Questions and Answers

Normal questions was average

Q1. Very good f2f interview
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Q1. Coding ques were asked and i was given a code to write and questions from resume
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Q1. Basic oops concepts.
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Q1. Type of gear
Ans. 
Gears are mechanical components that transmit torque and motion between rotating shafts, essential in various machines.
• Types of gears include spur gears, bevel gears, and worm gears.

• Spur gears are used in clocks and conveyor systems for simple motion transfer.

• Bevel gears are used in applications like hand drills to change the axis of rotation.

• Worm gears provide high torque and are commonly found in elevators and tuning
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Q2. What is cp nd cpk
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Cp and Cpk are statistical measures used to assess process capability in manufacturing and quality control.
• Cp (Process Capability) measures the potential capability of a process to produce output within specified limits.

• Cpk (Process Capability Index) measures how close a process is running to its specification limits, considering the mean.

• Cp is calculated as (USL - LSL) / (6 * sigma), where USL is the upper specificati...read more
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Q3. What is pp nd ppk
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PP and PPK are statistical measures used in process capability analysis to assess process performance and capability.
• PP (Process Performance) measures how well a process performs over time, considering variation.

• PPK (Process Performance Index) assesses how well a process meets specifications, accounting for process mean and variation.

• Example: A PP of 1.5 indicates a capable process, while a PPK of 1.0 suggests it may n...read more
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Q4. Type of forging
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Forging is a manufacturing process that shapes metal using compressive forces, enhancing its strength and durability.
• Types of forging include open-die forging, where metal is shaped between two flat dies.

• Closed-die forging involves shaping metal in a die that completely encloses it, allowing for more complex shapes.

• Roll forging is a continuous process that reduces the cross-section of a workpiece by passing it through ...read more
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Q1. Do u know about HT process
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HT process refers to heat treatment process used to alter the physical and mechanical properties of materials.
• HT process involves heating and cooling materials to achieve desired properties.

• Common techniques include annealing, quenching, tempering, and normalizing.

• Example: Heat treating steel to increase hardness and strength.
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Q2. How many u have experience
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I have 8 years of experience in the field of engineering.
• 8 years of experience in engineering

• Specialized in mechanical and electrical engineering

• Worked on various projects including designing, testing, and implementation

• Experience with CAD software such as AutoCAD and SolidWorks
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Q1. Software & design question
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Q1. Robot troubleshooting
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Q2. Mechanical knowledge
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Q1. Which language you will code
Ans. 
I am proficient in coding in multiple languages including Java, Python, and JavaScript.
• Java

• Python

• JavaScript
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Q2. Dsa topics in java
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Data Structures and Algorithms topics commonly used in Java programming.
• Arrays and ArrayLists

• Linked Lists

• Stacks and Queues

• Trees and Graphs

• Sorting and Searching algorithms

• Dynamic Programming

• Hashing and Hashmaps
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Q1. About yourself and introduce
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