Data Patterns PCB Design Engineer Interview Questions and Answers

Q1. Explain working of ac-dc converter
Ans. 
AC-DC converter converts alternating current (AC) to direct current (DC) for various applications.
• AC voltage is converted to DC voltage using rectifiers

• Rectifiers can be half-wave, full-wave, or bridge rectifiers

• Filtering is done to smooth out the output voltage

• Examples include power supplies for electronic devices and battery chargers
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Q2. PWM techniques, M. Tech project,
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Q1. What is OEE ?
Ans. 
OEE stands for Overall Equipment Effectiveness, a metric used to measure the efficiency of manufacturing processes.
• OEE takes into account three factors: availability, performance, and quality.

• It is calculated by multiplying availability, performance, and quality percentages.

• OEE helps identify areas for improvement in production processes.

• For example, if a machine has an availability of 90%, performance of 80%, and qual
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Easy round with few days of Practice you can easily crack this round

Q1. Question on Past experience, for freshers Questions on their course of study
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Q1. What was your previous job profile
Ans. 
I was previously working as a Software Engineer at XYZ Company.
• Developed and maintained software applications

• Collaborated with cross-functional teams to gather requirements and design solutions

• Implemented new features and enhancements

• Performed code reviews and debugging

• Participated in agile development processes
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Q2. Basic electronics questions
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Q3. With which test equipment you are familiar with
Ans. 
I am familiar with a wide range of test equipment including oscilloscopes, multimeters, signal generators, and power supplies.
• Oscilloscopes: Tektronix TDS2024B, Agilent DSO-X 2002A

• Multimeters: Fluke 87V, Keysight U1253B

• Signal generators: Tektronix AFG3102, Agilent 33220A

• Power supplies: Agilent E3631A, Tektronix PS2520G
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Q4. How you are in fault rectification
Ans. 
I have a systematic approach to fault rectification, starting with identifying the root cause and then implementing a solution.
• I begin by gathering information about the problem and analyzing it thoroughly

• I then identify the root cause of the issue and prioritize the most critical problems

• I develop a plan of action and implement a solution, testing it thoroughly to ensure it is effective

• I document the entire process fo...read more
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Q5. On which frequency band your system was working.
Ans. 
Our system operates on the 2.4 GHz frequency band.
• Our system uses the 2.4 GHz frequency band for communication.

• This frequency band is commonly used for Wi-Fi and Bluetooth devices.

• It has a range of approximately 30 meters indoors.

• The 2.4 GHz band is susceptible to interference from other devices operating on the same frequency.

• Our system has been optimized to minimize interference and ensure reliable communication.
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Q6. Are you ready to travel frequently to different locations within India.
Ans. 
Yes, I am ready to travel frequently to different locations within India.
• I have a flexible schedule and am willing to travel as required.

• I have previous experience traveling for work.

• I understand the importance of being adaptable and open to new locations.

• I am familiar with the travel logistics within India.

• I am excited about the opportunity to explore different parts of the country.
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Normal aptitude questions were asked.

Q1. Just previous experience related discussion only
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Q2. Most standard question, Why you want to join BEL 😄
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Q1. Test on basic electronics
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Q1. With group of experts
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Q1. About Role and Responsibilities
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Q2. Knowledge test on Resume
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Q1. Day to Day activities in previous Organisation
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Q2. Hypothical Questions
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Q1. Current CTC and take home
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Q2. Expected CTC and take home
Ans. 
Expected CTC and take home should be based on industry standards and the candidate's experience and skills.
• Expected CTC should be in line with industry standards for the position and the candidate's experience level.

• Take home pay should be calculated after deductions like taxes and insurance.

• Candidates can research average salaries for similar roles in the industry to get an idea of what to expect.

• Negotiation is common...read more
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