PTC Interview Questions and Answers

Q1. You have a birthday cake. You need to divide it in 8 equal parts, but you can cut it only 3 times. How will you do it?
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Q2. There are 4 people on one side of the river, let them be A, B, C and D. There is a boat on the same side of the river. A takes 1 minute to row to the other side, B takes 2 minutes, C takes 9 minutes and D ...read more
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Q3. Two people, A and B, are running on a circular track. Both start at the same position. A is running at a speed of "x" and B is running at a speed of "y" (x is not equal to y). At what distance will they me...read more
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They will meet again after the starting point at a distance of LCM(x, y).
• The distance at which they will meet again is the least common multiple (LCM) of their speeds.

• For example, if A is running at a speed of 4 m/s and B is running at a speed of 6 m/s, they will meet again after 12 meters.

• Another example, if A is running at a speed of 3 km/hr and B is running at a speed of 5 km/hr, they will meet again after 15 km.
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Q4. There are three wires of same length. First is crafted into a circle, second is crafted into an equilateral triangle and third is crafted into a square. Which one will have the minimum area?
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Q1. Program for Fibonacci Series.
Ans. 
A program to generate Fibonacci series using iterative or recursive approach.
• Iterative approach: Use a loop to generate Fibonacci numbers by adding the previous two numbers.

• Recursive approach: Define a function that calls itself to generate Fibonacci numbers.

• Example: Fibonacci series up to 10 - 0, 1, 1, 2, 3, 5, 8, 13, 21, 34
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Q2. Program to find if a number is prime or not.
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A program to determine if a given number is prime or not.
• Check if the number is less than 2, if so it is not prime

• Iterate from 2 to the square root of the number and check for divisibility

• If the number is divisible by any number other than 1 and itself, it is not prime

• If no divisors are found, the number is prime
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Q3. Swapping two numbers using different techniques. All possible test cases and where one can go wrong.
Ans. 
Swapping two numbers using different techniques and discussing possible test cases and errors.
• Using a temporary variable to swap the numbers

• Using arithmetic operations to swap the numbers

• Using bitwise XOR operation to swap the numbers

• Test cases: positive numbers, negative numbers, zero, large numbers, floating point numbers

• Possible errors: not using a temporary variable correctly, overflow/underflow with arithmetic ope...read more
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Q1. My introduction and my accomplishments.
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Q2. How much was my understanding about PTC core values.
Ans. 
I have a strong understanding of PTC core values.
• PTC core values include customer success, innovation, integrity, and teamwork.

• I have demonstrated my understanding of these values through my work on projects that prioritize customer satisfaction and collaboration.

• I have also shown my commitment to integrity by always following ethical guidelines in my work.

• I stay updated on industry trends and technologies to contribut...read more
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It was oncampus opportunity where in 1st round I was OA where aptitude and technical questions was asked all MCQ on the mttle platform

Q1. Oops concepts was asked and told t9 implement as well
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Q2. One DSA question easy - medium level
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Q3. Login page was given and was asked for the possible test cases coming in my mind as it was a QA role
Ans. 
Test cases for a login page include various scenarios to ensure functionality, security, and user experience.
• Verify valid login with correct username and password.

• Check login with incorrect username or password to ensure error message displays.

• Test login with empty username and password fields to confirm validation messages.

• Validate password visibility toggle functionality (show/hide password).

• Ensure 'Remember Me' opti...read more
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Q4. One sql question medium level
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Q1. It was manegarial round where some technical as well as behaviourial questions was asked
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Q2. Google home page was given and was asked for the test cases
Ans. 
Test cases for the Google home page include functionality, usability, and performance checks to ensure a seamless user experience.
• Verify the search functionality by entering various queries (e.g., 'weather', 'news').

• Check the responsiveness of the page on different devices (mobile, tablet, desktop).

• Test the loading time of the homepage under different network conditions.

• Ensure that the 'I'm Feeling Lucky' button redire...read more
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Q3. 2 DSA questions was asked easy - medium level
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Q4. Some behaviourial questions like where do you want to see yourself in next 5 years
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Q1. Expalination of my project
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Q2. My family background
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Q1. Relative electrical nowledge based questions
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Q2. Power system of Electrical and Electronics
Ans. 
Power systems in electrical engineering manage generation, transmission, and distribution of electrical energy efficiently.
• Power Generation: Involves sources like thermal, hydro, and renewable energy (e.g., solar panels).

• Transmission: High-voltage lines transport electricity over long distances to reduce losses.

• Distribution: Local networks deliver electricity to consumers, ensuring reliability and safety.

• Grid Managemen...read more
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Q1. Program for HashMap
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A program for HashMap implementation in Java
• HashMap is a data structure that stores key-value pairs

• Use put() method to add key-value pairs to HashMap

• Use get() method to retrieve values based on keys

• HashMap allows null keys and values

• Example: HashMap<String, Integer> map = new HashMap<>()
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Q2. Test cases for any materialistic things in interview cabin
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Test cases for items in an interview cabin ensure functionality, safety, and user experience during the interview process.
• Check the functionality of the interview chair: Ensure it is adjustable and comfortable for long periods.

• Test the lighting: Verify that the lighting is adequate and does not create glare on screens or documents.

• Inspect the table: Ensure it is sturdy and has enough space for interview materials like ...read more
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Q1. Why you want to join
Ans. 
I am impressed by the company's commitment to quality and innovation.
• I admire the company's reputation for excellence in product quality.

• I am excited about the opportunity to contribute to a team that values continuous improvement.

• I believe in the company's mission and values, and I see potential for growth and development within the organization.
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Q2. Why you left previous organisation
Ans. 
Seeking new challenges and growth opportunities
• Desire for career advancement

• Looking for a more challenging role

• Seeking new learning opportunities

• Relocation to a different city

• Company downsizing or restructuring
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