Siemens Engineer Trainee Interview Questions and Answers

30 minute 30 questions including verbal and quantitative aptitude

Q1. Basic level technical questions related to mechanical engineering
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Q1. General level questions regarding topics in the resume
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Q1. What is the location you are willing to join
Ans. 
I am open to various locations, including urban centers, remote areas, and international assignments, depending on project needs.
• Willing to relocate to major cities like New York, San Francisco, or Chicago for career growth.

• Open to working in remote locations if it involves unique projects or opportunities.

• Interested in international assignments, especially in countries with emerging technologies, like India or Germany...read more
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After the resume screening, the shortlisted candidates were sent a link to the test which was scheduled a few days later. The test had 2 sections - Technical and Aptitude MCQs, and a Coding section.

The Coding test had 2 easy-medium level questions. They were fairly easy to complete, and I successfully passed all test-cases.

Q1. Tell me about any of the projects on your resume.
Ans. 
Developed a smart irrigation system using IoT to optimize water usage in agriculture.
• Designed a prototype using Arduino and moisture sensors.

• Implemented a mobile app for real-time monitoring and control.

• Conducted field tests, resulting in a 30% reduction in water usage.

• Collaborated with a team of 4 engineers to enhance system efficiency.
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Q2. Explain the working of Bubble Sort (I had to pen down the pseudo-code, but others were asked to write the code as well).
Ans. 
Bubble Sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if needed.
• 1. Bubble Sort works by repeatedly comparing adjacent elements in an array.

• 2. If the first element is greater than the second, they are swapped.

• 3. This process is repeated for each pair of adjacent elements until the entire array is sorted.

• 4. The algorithm gets its name because smaller ...read more
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Q3. Explain the working of Insertion Sort.
Ans. 
Insertion Sort is a simple sorting algorithm that builds the final sorted array one item at a time.
• Start from the second element and compare it with the previous elements to find its correct position in the sorted array.

• Repeat this process for all elements in the array.

• Example: Given array of strings ['banana', 'apple', 'orange'], after insertion sort it becomes ['apple', 'banana', 'orange'].
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Q4. How would you find the maximum and second-maximum numbers in an array? (Pseudo-code)
Ans. 
Use a loop to iterate through the array and keep track of the maximum and second-maximum numbers.
• Initialize two variables to store the maximum and second-maximum numbers.

• Iterate through the array and update the variables accordingly.

• Handle edge cases like when the array has less than two elements.
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Q5. Write the query to execute a left-join on two tables - I was shown a database with a few tables defined.
Ans. 
A left join retrieves all records from the left table and matched records from the right table.
• Use the LEFT JOIN keyword to combine rows from two tables based on a related column.

• Syntax: SELECT columns FROM table1 LEFT JOIN table2 ON table1.column = table2.column;

• Example: SELECT a.id, a.name, b.salary FROM employees a LEFT JOIN salaries b ON a.id = b.emp_id;

• If there is no match, NULL values will be returned for columns...read more
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Q6. What do you understand by the phrase 'pass-by-value'?
Ans. 
Pass-by-value is a method of passing arguments to a function where the actual value of the argument is copied to a new variable.
• In pass-by-value, a copy of the actual value of the argument is passed to the function.

• Any changes made to the parameter inside the function do not affect the original value outside the function.

• Primitive data types like integers, floats, and characters are typically passed by value.

• Example: i...read more
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Q7. If you're given two CSV files, containing 2 columns each, how would you merge the two files using Python?
Ans. 
To merge two CSV files with 2 columns each in Python, use the pandas library.
• Import the pandas library

• Read the two CSV files into pandas DataFrames

• Merge the DataFrames using a common column as the key

• Save the merged DataFrame to a new CSV file
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Q8. Puzzle - A drawer contains 10 pairs each of red and blue socks. What is the minimum number of socks that should be picked to obtain at least 1 rightly colored pair?
Ans. 3, since there are only 2 colors of socks.
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Q9. Problem Solving - How would you reduce the vehicle congestion at a junction?
Ans. 
To reduce vehicle congestion at a junction, implement traffic signal optimization, encourage public transportation, and create dedicated lanes for buses and bicycles.
• Implement traffic signal optimization to improve traffic flow and reduce wait times.

• Encourage the use of public transportation by providing incentives such as discounted fares or improved services.

• Create dedicated lanes for buses and bicycles to reduce the...read more
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Q1. What is your short-term plan in life?
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Q2. Reasons, if any, for the change in grades from high-school to university. (I went from a 95 aggregate in high-school, to a 85 aggregate in university)
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Q3. What is your preferred location and how would you adjust if you did not receive your preferred location?
Ans. 
I prefer working in a dynamic city environment, but I'm adaptable and open to opportunities anywhere.
• I value the experience and growth opportunities that come with different locations.

• For example, if assigned to a less preferred location, I would focus on building relationships with colleagues.

• I would also seek to understand the local market and industry trends to enhance my skills.

• Additionally, I believe that every lo...read more
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It was only an aptitude test with no coding questions, although there were some pseudo codes and mostly consisted of aptitude

Q1. Was asked mostly questions on SQL and then the projects and some pseudocode
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It was average yet time crunch was there

Q1. Fairly average, easy even at sime points
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Q2. Where do you internshiped tell me about yourself
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Q1. Technical questions regarding transformers
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Q2. Tell me about stand alone systems
Ans. 
Stand alone systems are independent systems that operate without the need for external connections or dependencies.
• Stand alone systems do not require internet connectivity to function

• They are self-sufficient and can operate independently

• Examples include standalone computers, calculators, and offline software applications
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Q1. Will you be able to give your time
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