Landis+Gyr Quaity Control Engineer Interview Questions and Answers for Experienced

Q1. Why havells and where do u see yourself after 20 years.
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Q1. Single phase motors
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Technical + Aptitude Test. Minimum 50% to qualify for 2nd round.

Q1. What's your favourite subject and then questions related to it.
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Q2. What projects you have made? Tell me more about this project.
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Q3. What's Factor of Safety, Fatigue failure, Stress, failure theories.
Ans. 
Factor of Safety, Fatigue failure, Stress, failure theories are important concepts in engineering.
• Factor of Safety is the ratio of the maximum stress a material can withstand to the working stress.

• Fatigue failure occurs when a material fails due to repeated loading and unloading.

• Stress is the force per unit area that a material is subjected to.

• Failure theories are used to predict the failure of a material under differe...read more
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Its a mn online aptitude test comprising of 30 aptitude questions and 30 technical questions in total 60 questions.
The technical question background depends upon your stream like [EEand EC , ME]
The time is give of 60min to complete the test.

Q1. The interviwer asked me about myself and my family background and that's it. He asked nothing else more than that as I am from EC stream I expected some of the basic electronics questions.
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The question were asked on project and the resume details

Q1. My qualifications with skills, hobbies, future dream and many others questions based on resume, and also the main thing what i know about the company, minor and major project question in college
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Q1. What are half wave and full wave rectifiers
Ans. 
Half wave and full wave rectifiers convert AC to DC, differing in efficiency and output waveform.
• Half Wave Rectifier: Uses one diode, allows only one half of AC waveform.

• Example: Simple power supply for low-power devices.

• Full Wave Rectifier: Uses two or four diodes, utilizes both halves of AC waveform.

• Example: More efficient power supply for higher power devices.

• Half wave produces pulsating DC, while full wave produces
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Q2. How can you filter a signal with ripples
Ans. 
Filtering signals with ripples involves using techniques to reduce unwanted oscillations while preserving desired signal characteristics.
• Use a low-pass filter to attenuate high-frequency ripples while allowing low-frequency signals to pass.

• Apply a moving average filter to smooth out rapid fluctuations in the signal.

• Consider using a Butterworth filter for a smooth frequency response with minimal ripples.

• Employ a Kalman ...read more
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