AADYAH AEROSPACE Interview Questions and Answers

I have a Bachelor's degree in Electrical Engineering from XYZ University.

• Bachelor's degree in Electrical Engineering

• Graduated from XYZ University

I have worked on various projects related to electrical engineering, including designing power distribution systems and implementing automation solutions.

• Designed power distribution systems for commercial buildings

• Implemented automation solutions for manufacturing processes

• Worked on renewable energy projects such as solar panel installations

I have worked on projects involving power distribution systems, control systems, and renewable energy sources.

• Designed and implemented a power distribution system for a residential building

• Developed control systems for industrial machinery to optimize efficiency

• Researched and implemented renewable energy sources like solar panels for a sustainable energy project

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...read more

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...read more

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...read more

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...read more

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...read more

In angle measurement applications, rotary encoders and inclinometers are commonly used sensors for precise angle detection.

• Rotary Encoders: Measure the angle of rotation in motors and robotics.

• Inclinometers: Measure the tilt or angle of an object relative to gravity.

• Gyroscopes: Used in smartphones and drones for orientation and angular velocity.

• Potentiometers: Simple devices that can measure angular position in various...read more

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...read more

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