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Embedded Firmware Engineer Interview Questions & Answers
Efftronics Systems
Anonymous
posted on 15 Dec 2024
I applied via campus placement at Gandhi Institute of Technology and Management, Visakhapatnam and was interviewed in Nov 2024. There were 6 interview rounds.
There are 65 questions related to ECE core topics, including Network Analysis, some on VLSI, Signals and Systems, Analog Circuits, Electronic Devices, and Amplifier Circuits. Additionally, there are 118 simple questions covering mind games, object identification, and series completion.
(3 Questions)
- Q1. What is life according to you ?
- Ans.
Life is a journey filled with experiences, challenges, growth, and opportunities for self-discovery.
Life is a precious gift that should be cherished and lived to the fullest
It involves constant learning, adapting, and evolving as individuals
Life is about forming meaningful relationships and connections with others
It includes pursuing passions, setting goals, and overcoming obstacles
Life is a balance of joy and sorrow,
- Q2. Does education help you to earn money ?
- Ans.
Education can help individuals earn money by providing them with valuable skills, knowledge, and opportunities for career advancement.
Education can lead to higher paying job opportunities
Specialized education or training can result in higher salaries
Education can also lead to promotions and career advancement
Higher levels of education are often correlated with higher earning potential
- Q3. Do you need education and fame ?
(3 Questions)
- Q1. Convert hexadecimal to decimal ?
- Ans.
Hexadecimal to decimal conversion involves multiplying each digit by 16 raised to the power of its position.
Start from the rightmost digit and multiply each digit by 16 raised to the power of its position (0-indexed).
Add the results of each multiplication to get the decimal equivalent.
For example, converting 0x1A to decimal: (1 * 16^1) + (10 * 16^0) = 26.
- Q2. Design the components which are involved in the internal logic circuit of a 7-segment display based on the provided circuit ?
- Ans.
Components involved in the internal logic circuit of a 7-segment display include decoder, driver, and individual LED segments.
Decoder: Converts input signals into the appropriate output signals for each segment.
Driver: Amplifies the output signals from the decoder to drive the LED segments.
Individual LED segments: Represent each of the seven segments in the display.
Example: BCD to 7-segment decoder, transistor driver c
- Q3. Design specifications for creating a vending machine using a microcontroller, incorporating the display of amounts with two 7-segment displays and including four to five additional operational conditions?
- Ans.
Design a vending machine using a microcontroller with two 7-segment displays and additional operational conditions.
Use a microcontroller to control the vending machine's operations
Incorporate two 7-segment displays to show the amounts
Include four to five additional operational conditions such as low inventory alert, coin validation, product selection, etc.
(2 Questions)
- Q1. Write an assembly language program for displaying a square waves for the frequency of 1 Hz and 2 Hz with the 2 ports .
- Ans.
Assembly language program to display square waves for 1 Hz and 2 Hz using 2 ports.
Use assembly language instructions to control the ports for outputting square waves.
Set up a loop to toggle the ports at the desired frequencies to generate the square waves.
Ensure proper timing and synchronization between the two square waves.
- Q2. Write an assembly language program for reversing a byte for a hexadecimal value ? ex: A3 hexadecimal needs to converted to C5 when reversed .
- Ans.
Assembly language program to reverse a byte for a hexadecimal value.
Load the hexadecimal value into a register
Extract the lower 4 bits and upper 4 bits of the byte
Swap the lower and upper 4 bits
Combine the swapped bits to get the reversed byte
(2 Questions)
- Q1. When 2 trains move in opposite directions , what point will they meet at different speeds? And related questions
- Ans.
The trains will meet at a point that is determined by the relative speeds of the trains.
The point where the trains meet is determined by the sum of the distances traveled by each train.
The time taken for the trains to meet is determined by the relative speeds of the trains.
If Train A is traveling at 50 mph and Train B is traveling at 70 mph, they will meet at a point that is closer to Train B's starting point.
- Q2. Matrices , volume , Coins , probability
(2 Questions)
- Q1. They will be asking mostly what ever you have written in the 2-5 rounds which will be conducted in the company premises .
- Q2. Flip flops, diff of micro-controller and microprocessor, logic gates , I2C , USART , SPI
Interview Preparation Tips
- Digital Logic Design
- Analog Circuits
- Assembly Language
- Electronic Circuit Design
Interview will be held in the company premises. After going to the company you will be seated in a single chair and you will be given the question papers for each round and then the last HR round is final.
Prepare well for all the rounds; it is essential to be mentally and physically strong because you will need to be present from 8:30 AM to 6:30 PM.
Selected
I was interviewed in Dec 2024.
(6 Questions)
- Q1. Heating and cooling load calculation
- Q2. Mass flow rate calculation
- Q3. Refrigeration and AHU system design
- Q4. Previous experience
- Q5. Manager Discussion
- Q6. HR discussion
Production Operator Interview Questions & Answers
Mitsubishi Electric
Anonymous
posted on 17 Jan 2025
Selected
I applied via Company Website and was interviewed in Dec 2024. There was 1 interview round.
(5 Questions)
- Q1. What is the difference between a diesel engine and a petrol engine?
- Ans.
Diesel engines use compression ignition while petrol engines use spark ignition.
Diesel engines use compression ignition, where the fuel-air mixture is compressed until it spontaneously ignites.
Petrol engines use spark ignition, where a spark plug ignites the fuel-air mixture.
Diesel engines are more fuel efficient and have higher torque, while petrol engines have higher power output and smoother operation.
Diesel engines...
- Q2. What is a four-stroke engine?
- Ans.
A four-stroke engine is an internal combustion engine that completes four separate strokes (intake, compression, power, exhaust) in two crankshaft revolutions.
Intake stroke: Fuel and air are drawn into the combustion chamber.
Compression stroke: The fuel-air mixture is compressed by the piston.
Power stroke: The spark plug ignites the mixture, causing an explosion that drives the piston down.
Exhaust stroke: The piston pu...
- Q3. How many types of break
- Ans.
There are two main types of breaks: planned breaks and unplanned breaks.
Planned breaks are scheduled breaks that are typically taken during designated times, such as lunch or coffee breaks.
Unplanned breaks are unexpected interruptions in work, such as equipment malfunctions or emergencies.
Examples: lunch break, coffee break, equipment malfunction causing downtime
- Q4. What is ABS system
- Ans.
ABS system stands for Anti-lock Braking System, a safety feature in vehicles to prevent wheels from locking up during braking.
ABS system helps maintain steering control during emergency braking
It prevents skidding and allows the driver to maintain control of the vehicle
ABS system works by modulating brake pressure to individual wheels
Commonly found in modern vehicles for enhanced safety
Example: When braking hard on a s...
- Q5. What is carborator
- Ans.
A carburetor is a device in an internal combustion engine that mixes air with a fine spray of liquid fuel.
Carburetors are used in older vehicles to control the air-fuel mixture for combustion
They have been largely replaced by fuel injection systems in modern vehicles
Carburetors have components such as throttle, choke, and jets to regulate fuel flow
Examples of vehicles with carburetors include classic cars and motorcycl
Interview Preparation Tips
Selected
I was interviewed in Nov 2024.
(2 Questions)
- Q1. Aoi operator in tri
- Ans.
Operator ing in aoi pcb
- Q2. Pri aoi and post aoi is a operator
- Ans.
Operator ing in aoi pcb
(2 Questions)
- Q1. Aoi operator pri and p Post
- Ans.
Operator ing in aoi pcb
- Q2. Pri aoi and post aoi operator
(2 Questions)
- Q1. Aoi operator pri and post aoi
- Q2. Aoi operator pri and post aoi operator
(2 Questions)
- Q1. Pri aoi and post aoi operator
- Q2. Pri aoi and post aoi operator
(2 Questions)
- Q1. Pri aoi and post aoi operator
- Q2. Pri aoi and post aoi operator
(2 Questions)
- Q1. Aoi operator pri and post aoi operator is handling
- Q2. Aoi operator pri and post aoi operator handling
Aoi operator pri and post aoi operator
Aoi operator pri and post aoi operator
Aoi operator pri and post aoi operator
Aoi operator pri and post aoi operator
Aoi operator and post aoi operator pri
Aoi operator pri and post
Interview Preparation Tips
I applied via Recruitment Consulltant and was interviewed in Oct 2024. There were 5 interview rounds.
(2 Questions)
- Q1. Apne esa phala kya kam karta tha
- Q2. Apka kya name hai
(2 Questions)
- Q1. Apko kaisa job ke bara pata chala
- Q2. Skills kya hai apka pass Jo apko mai lu
(1 Question)
- Q1. Esa phala kaha kam Keya ho
(2 Questions)
- Q1. Jaha kam karta tha uha kya kam tha
- Q2. Kam ke basic jankari
(1 Question)
- Q1. Apko es company ke bara Mai kya pata hai
Project Management Specialist Interview Questions & Answers
Delta Electronics
Venkatesh M
posted on 12 Jan 2025
Just an simple question to check out your observations skills.
(1 Question)
- Q1. Can you describe your previous projects and your roles and responsibilities in them?
- Ans.
I have managed various projects in IT sector, overseeing project planning, execution, and delivery.
Led a team in implementing a new software system for a client, ensuring project milestones were met on time and within budget
Coordinated with stakeholders to gather requirements and create project plans
Monitored project progress, identified risks, and implemented mitigation strategies
Communicated regularly with team membe...
(1 Question)
- Q1. Salary negotiations
Interview Preparation Tips
(6 Questions)
- Q1. What is Three phase wire colour code
- Ans.
Three phase wire colour code is a standard set of colors used to identify the different phases in a three-phase electrical system.
In North America, the standard color code for three-phase wires is black, red, and blue.
In Europe and most other parts of the world, the standard color code is brown, black, and gray.
The purpose of the color code is to easily identify the different phases and ensure proper connection and saf
- Q2. What is Rectifier
- Ans.
A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
Converts AC to DC
Used in power supplies and electronic devices
Types include half-wave, full-wave, and bridge rectifiers
Diodes are commonly used in rectifiers
- Q3. What is transformer
- Ans.
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers consist of two coils of wire, known as the primary and secondary coils.
The primary coil is connected to a power source, creating a magnetic field when current flows through it.
This magnetic field induces a voltage in the secondary coil, transferring energy from the primary to the second...
- Q4. What is Capacitor
- Ans.
A capacitor is an electronic component that stores and releases electrical energy.
Capacitors are used to filter out noise in electronic circuits.
They can store energy and release it quickly when needed.
Capacitors are commonly used in power supplies, audio equipment, and electronic devices.
Examples include ceramic capacitors, electrolytic capacitors, and tantalum capacitors.
- Q5. What is kritch of law
- Ans.
Kritch of law refers to a legal principle or rule that is considered outdated or no longer relevant.
Kritch of law may refer to a law that is no longer enforced or followed due to changes in society or legal interpretation
It can also refer to a legal principle that is widely criticized or considered unjust
Examples include laws prohibiting certain outdated practices or beliefs, such as witchcraft trials or dueling
- Q6. What is motor and Generater
- Ans.
A motor is a device that converts electrical energy into mechanical energy, while a generator is a device that converts mechanical energy into electrical energy.
Motor: Converts electrical energy into mechanical energy (e.g. electric fan)
Generator: Converts mechanical energy into electrical energy (e.g. hydroelectric power plant)
Senior Assistant Engineer Interview Questions & Answers
Samsung Display
Anonymous
posted on 1 Jan 2025
(2 Questions)
- Q1. What is the Plc ?
- Q2. What is robot and its application?
Selected
I applied via Naukri.com and was interviewed in Jun 2024. There were 2 interview rounds.
(8 Questions)
- Q1. Camera installation
- Q2. Boom barrier working
- Q3. RFID reader working
- Ans.
RFID reader works by sending out radio waves to communicate with RFID tags containing information.
RFID reader sends out radio waves to communicate with RFID tags
RFID tags contain information that can be read by the reader
Reader captures the data from the tags and processes it for further use
- Q4. Maintenance of computer
- Q5. Windows installation and networking
- Q6. Server basic knowledge
- Q7. Weight in motion
- Ans.
Weight in motion refers to the measurement of weight while an object is in motion.
Weight in motion is commonly used in industries to monitor the weight of moving vehicles or materials on conveyor belts.
It involves using sensors or scales that can accurately measure the weight of the object while it is in motion.
This data can be used for various purposes such as quality control, inventory management, or monitoring produ
- Q8. CCH 2.5 working
- Ans.
CCH 2.5 working refers to the functionality of a specific software or system version.
CCH 2.5 is a software version used in engineering projects.
Ensure that all features and functionalities of CCH 2.5 are working properly.
Test the software thoroughly to confirm its functionality.
Troubleshoot any issues that may arise during the testing process.
(3 Questions)
- Q1. Megantic Loop working
- Q2. Function of NVR and DVR
- Ans.
NVR and DVR are both used for video recording, but NVR is for IP cameras and DVR is for analog cameras.
NVR (Network Video Recorder) is used for recording video from IP cameras over a network.
DVR (Digital Video Recorder) is used for recording video from analog cameras.
NVR typically has higher resolution and better quality recordings compared to DVR.
DVR requires coaxial cables for connection, while NVR uses Ethernet cabl...
- Q3. Monitoring of TC module, cashup module, cch module, server, point of sale etc.
Interview Preparation Tips
- Highway management system
- Advance traffic management syste
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. Ok good best excellent
- Q2. Ok good outstanding fantastic
Interview Preparation Tips
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