Blue Star Senior Electrical Design Engineer Interview Questions and Answers for Experienced

Q1. Share details of your previous job.
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Q1. Basic questions about mechanical design and working skills
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Q1. Your behavior check. Final round with HOD.
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Q1. Python and sql questions
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Q1. Client interview
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Q1. General discussion
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Write a code to fill the water tank

Q1. How to measure slope of random voltage waveform?
Ans. 
The slope of a random voltage waveform can be measured by calculating the rate of change of voltage over time.
• Calculate the difference in voltage between two points on the waveform

• Divide the voltage difference by the time interval between the two points to get the slope

• Repeat this process for multiple points on the waveform to get an average slope
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Q2. Design a circuit for Water Tank Filling
Ans. 
Design a circuit for Water Tank Filling
• Use a float switch to detect water level in the tank

• Connect the float switch to a relay to control the water flow

• Include a solenoid valve to regulate the water flow

• Use a microcontroller to monitor the water level and control the relay and solenoid valve
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Q1. Python related questions
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Q1. Behavioral and management
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C++, DSA, 3 hours should have good knowledge of data structure and algorithms

Q1. 1. Find the max 3 items in a unsorted array
Ans. 
Find the max 3 items in an unsorted array of strings.
• Sort the array in descending order.

• Return the first 3 elements of the sorted array.
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Q1. No one joined the interview from interview panel and it happened twice to which HR after ignoring my mails/call for long told me that since team works from Korea they don't get time. She was having very c...read more
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Q1. System design round about ott
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Q2. Leetcode rain water problem
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The test was based Graph which can be solved by DP.