MEL Systems and Services Electronics Engineer Interview Questions and Answers

Q1. What do you know about RF.
Ans. 
RF stands for Radio Frequency, a technology used for wireless communication and transmission of data.
• RF is used in various applications such as WiFi, Bluetooth, cellular networks, and RFID.

• RF signals are electromagnetic waves that have a frequency range from 3 kHz to 300 GHz.

• RF engineering involves designing, testing, and optimizing RF systems for efficient communication.

• RF engineers work on antenna design, signal prop...read more
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Q2. What about CMW ,type and use.
Ans. 
CMW stands for Continuous Wave. It is a type of signal used in various engineering applications.
• CMW is a type of signal that is continuous and does not have any interruptions.

• It is commonly used in radar systems for target detection and tracking.

• CMW is also used in communication systems for continuous transmission of data.

• It is important in engineering for its ability to provide constant and reliable signal.

• Examples of...read more
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Q1. Test on basic electronics
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Q1. With group of experts
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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
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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. You will be asked about your final project of your engineering degree and some questions about the technical experience you have shown.
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Q1. Tell us something about yourself?
Ans. You should tell your name, technical education and experience in brief
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Q1. How to major resistance by old method
Ans. 
Major resistance by old method involves using traditional techniques to determine the level of resistance in a material.
• Use manual testing methods such as scratch testing or hardness testing to assess resistance

• Refer to historical data or records of similar materials for comparison

• Consult with experienced professionals who have knowledge of traditional resistance testing methods
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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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Q1. Mechanical Engineering Questions
Ans. Basic knowledge of all mechanical engineering subjects
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Q2. Mechanical Vibration
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Q3. Strength of Materials
Ans. 
Strength of Materials is a branch of engineering that deals with the behavior of solid objects subjected to stresses and strains.
• Strength of Materials is essential in designing structures and machines to ensure they can withstand various loads and forces.

• It involves studying the properties of materials such as elasticity, plasticity, and strength.

• Common examples include calculating the stress and strain in a beam under...read more
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Q1. Work Experience in the relevant field.
Ans. Through knowledge in the relevant field.
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