OSRAM Interview Questions and Answers

General aptitude questions. Easy to solve. Didn’t take much time

Q1. Explain operation of rc circuit
Ans. 
An RC circuit consists of a resistor and a capacitor connected in series or parallel, used for filtering, timing, and signal processing.
• RC circuit operation is based on the charging and discharging of the capacitor through the resistor.

• When a voltage is applied to the circuit, the capacitor charges up to the applied voltage through the resistor.

• The time constant (RC) determines how quickly the capacitor charges or disc...read more
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Q2. Draw waveform for diode
Ans. 
A diode waveform typically shows a voltage drop when forward biased and no current flow when reverse biased.
• Forward biased: voltage drop across diode, current flows

• Reverse biased: no current flow, diode acts as open circuit
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Q1. Questions based on my project
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Q1. Why you want to change job. Ans. For good opportunity
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Q1. What is iso 9001
Ans. 
ISO 9001 is a quality management system standard that outlines requirements for organizations to meet customer needs and improve processes.
• ISO 9001 is a set of standards developed by the International Organization for Standardization (ISO)

• It focuses on ensuring that organizations meet customer needs and improve their processes

• ISO 9001 certification is often required by customers as a way to ensure quality

• It includes re...read more
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Q1. Switchgear , Cabinet design , heat calculation
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Q1. PLC hardware, Industrial communication , Safety
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Q1. Soft skill, leadership, problem solving
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Q1. Critical thinking, situation handle
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Q1. General question, Salary negotiation
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Digital Electronics, verilog basics,C language basics,

Q1. Project description, digital system design for start bit detector in UART
Ans. 
Designing a digital system for detecting start bit in UART communication
• The start bit is the first bit in a UART transmission and is always a logic low

• The system should sample the incoming data at a rate higher than the baud rate to accurately detect the start bit

• A shift register can be used to store the incoming data and detect the start bit

• The system should also check for framing errors and parity errors
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Q2. Project description, latch based circuit and flip flop based circuits, 1 puzzle
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