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I applied via Campus Placement and was interviewed before Jul 2023. There were 2 interview rounds.
An instrumentation amplifier is a type of differential amplifier that has high input impedance and gain.
Consists of three operational amplifiers
Provides high input impedance and gain
Used in applications requiring precise and accurate measurements, such as in medical devices
A voltage follower circuit is a circuit that produces an output voltage that is equal to the input voltage.
It has a high input impedance and low output impedance.
It is used to isolate the input from the output.
It provides unity gain, meaning the output voltage follows the input voltage.
Example: Op-amp voltage follower circuit.
Analog filters process continuous signals while digital filters process discrete signals.
Analog filters operate on continuous-time signals while digital filters operate on discrete-time signals
Analog filters use analog components like resistors, capacitors, and inductors while digital filters use digital processing algorithms
Analog filters are susceptible to noise and drift while digital filters are more immune to thes...
A snubber is a circuit used to suppress voltage spikes in electrical circuits, while a bleeder is used to discharge stored energy in capacitors.
Snubber circuits are commonly used in power electronics to protect semiconductor devices from voltage spikes.
Bleeder resistors are used in capacitors to discharge any stored energy when the power is turned off.
Snubbers can be passive (resistor-capacitor) or active (using diodes...
Voltage regulators are electronic devices that maintain a constant voltage level in a circuit.
Linear voltage regulators: simple, low cost, but less efficient
Switching voltage regulators: more complex, higher efficiency, used in power supplies
LDO (Low Dropout) regulators: maintain a constant output voltage even when the input voltage is very close to the output voltage
Programmable voltage regulators: allow the output vo...
Analog electronics filter design involves designing circuits that pass desired frequencies while attenuating others.
Understand the specifications of the filter such as cutoff frequency, passband ripple, stopband attenuation, etc.
Select the appropriate filter topology based on the requirements (e.g. Butterworth, Chebyshev, Bessel).
Calculate component values using filter design equations or simulation tools like SPICE.
Pr...
ARM Cortex-M series microcontrollers are commonly used in embedded systems for IoT devices, wearables, and industrial applications.
ARM Cortex-M0/M0+/M1: used in low-power applications like wearables and IoT devices
ARM Cortex-M3: used in industrial automation and automotive applications
ARM Cortex-M4/M7: used in high-performance applications like robotics and drones
Butterfly algorithm in DSP is a method used for fast Fourier transform (FFT) computations by reducing the number of operations required.
Butterfly algorithm is commonly used in FFT computations to reduce the number of operations needed.
It involves breaking down the FFT computation into smaller sub-problems and combining the results in a specific way.
The algorithm gets its name from the shape of the data flow diagram, wh...
Instruments used for precise measurements include calipers, micrometers, rulers, and tape measures.
Calipers are used for measuring the distance between two opposite sides of an object.
Micrometers are used for measuring very small distances or thicknesses.
Rulers are used for measuring straight lengths.
Tape measures are flexible rulers used for measuring longer distances.
Other instruments like laser distance meters and d...
Major project in Btech was designing a smart irrigation system using IoT technology. Minor project in Mtech was developing a low-power sensor for environmental monitoring.
Btech major project: designing a smart irrigation system using IoT technology
Mtech minor project: developing a low-power sensor for environmental monitoring
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posted on 10 Sep 2015
I applied via PLACEMENT
posted on 10 Sep 2017
I was interviewed before Sep 2016.
posted on 18 Nov 2020
Android architecture stack is a set of layers that make up the Android operating system.
The stack includes four main layers: Linux kernel, native libraries, Android runtime, and application framework.
The Linux kernel provides low-level system functionality.
Native libraries are written in C or C++ and provide access to hardware-specific features.
The Android runtime includes the Dalvik virtual machine and core libraries.
...
AIDL stands for Android Interface Definition Language, used for inter-process communication in Android.
AIDL is used to define the interface between client and service in Android.
It allows communication between different processes in Android.
AIDL is used to pass complex data types between processes.
AIDL is similar to Remote Procedure Call (RPC) in other programming languages.
Example: AIDL is used in Android to implement...
Hash set and hash map are data structures used to store key-value pairs for efficient retrieval.
Hash set stores unique values without any specific order.
Hash map stores key-value pairs and allows fast retrieval of values based on keys.
Both use hashing to map keys to their corresponding values.
In Java, HashSet and HashMap are implementations of these data structures.
posted on 12 May 2018
posted on 4 Nov 2021
I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed before Jun 2023. There was 1 interview round.
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
I applied via Newspaper Ad and was interviewed before Mar 2022. There were 2 interview rounds.
Normal aptitude questions were asked.
I applied via Company Website and was interviewed in Oct 2022. There were 2 interview rounds.
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
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
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...
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.
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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Design Engineer
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Hindustan Aeronautics
Tata Advanced Systems
Bharat Electronics
Mahindra Aerospace