S Mark Oil Field Engineering Interview Questions and Answers

C programming coding

Q1. Introduction , Family background , why iasys, why should hire you, salary expectation
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Q1. Introduction, in which programming language are you comfortable( 45 min)
Ans. 
I am comfortable with C, C++, and Python for embedded software development.
• Proficient in C for low-level programming

• Experienced in C++ for object-oriented design

• Skilled in Python for scripting and automation tasks
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Q2. What is class object, inheritance, function overloading ,function overriding, difference between encapsulation and abstraction, volatile keyword
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Class object is an instance of a class, inheritance allows a class to inherit properties and methods from another class, function overloading is defining multiple functions with the same name but different parameters, function overriding is redefining a function in a subclass, encapsulation is bundling data and methods that operate on the data into a single unit, abstraction is hiding the implementation details and sho...read more
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Q3. What is pointer and it's type
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Types of pointers include null pointers, void pointers, function pointers, and array pointers.

• Example: int *ptr; // pointer to an integer variable

• Example: char *str = 'hello'; // pointer to a character array
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Q4. Static function with implementation , virtual function with code, multilevel inheritance implementation
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Q5. Projects deep, what challenges faced and how to overcome, your role in project
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Q1. Technical 2 (1 hour)
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Q2. Introduction, what is Embedded system, Project deep
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Q3. What is semaphore and mutex, binary semaphore, thread and process
Ans. 
Semaphores and mutex are synchronization mechanisms in multithreading. Threads are lightweight processes, while processes are independent execution units.
• Semaphore: used to control access to a shared resource by multiple threads. Example: controlling access to a printer in a networked system.

• Mutex: similar to a semaphore but only allows one thread to access a resource at a time. Example: protecting a critical section o...read more
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Q4. How to stored data in memory , Interrupt service routine ,interrupt latency, UART,SPI,
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Q5. Watchdog timer, 8051 microcontroller architecture, volatile keyword, static function, global and local variable
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Sliding window leet code style

Computer vision task. Image segmentation

Q1. What was the algorithm you used in the task
Ans. 
I used the Random Forest algorithm for the task.
• Random Forest is an ensemble learning method that builds multiple decision trees and merges them together to get a more accurate and stable prediction.

• It is commonly used for classification and regression tasks.

• Example: RandomForestClassifier in scikit-learn library.
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Q2. What are metrics you can use for this task
Ans. 
Metrics for evaluating machine learning tasks
• Accuracy

• Precision

• Recall

• F1 Score

• ROC AUC

• Confusion Matrix
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Q1. A presentation of a past project with followup questions
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Q2. Some questions on text classification
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Q1. About myself/self introduction
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Q2. Experience & achievement
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Q1. Major factoring MWF got affected
Ans. 
Major factoring MWF got affected due to changes in the market demand and supply dynamics.
• Market demand for the product decreased significantly

• Increased competition from other manufacturers

• Changes in consumer preferences impacting sales

• Supply chain disruptions affecting production
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Q2. Process to resolve it
Ans. 
To resolve technical issues, I follow a systematic process involving identification, analysis, troubleshooting, and implementation of solutions.
• Identify the issue by gathering information and analyzing symptoms

• Troubleshoot the problem by testing different solutions and isolating the root cause

• Implement the solution by making necessary changes or repairs

• Verify the resolution by testing the system to ensure the issue is ...read more
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Q1. Technical analysis of process and applications
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Q2. Rectification in complaint and complaint handling process
Ans. 
Rectification in complaint and complaint handling process involves identifying and resolving issues to improve customer satisfaction.
• Identify root cause of the complaint

• Take necessary actions to rectify the issue

• Communicate the resolution to the customer

• Implement measures to prevent similar complaints in the future
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Q1. Research and development, NPD
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Q2. Project management
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Q1. Project management
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Q2. Quality and team
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Q1. What is your mangerial style?
Ans. 
My managerial style is collaborative, empowering, and focused on fostering a positive work environment.
• I believe in open communication and involving team members in decision-making processes.

• I empower my team by providing them with the resources and support they need to succeed.

• I prioritize creating a positive work environment where team members feel valued and motivated.

• I believe in setting clear goals and expectation...read more
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Q2. Tell us about a time you resolved a conflist in the workplace.
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Q1. Difference between av and iv
Ans. 
AV stands for audiovisual while IV stands for intravenous.
• AV refers to anything related to sound and visuals, such as AV equipment or AV presentations.

• IV refers to a method of administering fluids or medications directly into a vein.

• AV is commonly used in technology and entertainment industries, while IV is used in healthcare settings.

• Examples: AV cables, AV receiver, IV drip, IV medication administration.
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Q2. Mdpe code , difference between pe100 and pe80
Ans. 
MDPE code refers to Medium Density Polyethylene code. PE100 has higher density and strength compared to PE80.
• MDPE code stands for Medium Density Polyethylene code used to classify the material.

• PE100 has a higher density and strength compared to PE80, making it more suitable for high pressure applications.

• PE80 is commonly used for low pressure applications such as water supply pipes.

• PE100 is more resistant to stress cra...read more
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Q1. Asked law related questions. In which sections FIR can be filed if someone broke the gas pipeline.
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Q2. Asked about laws governing gas licence. Consumer laws.
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Q1. What is your biggest weakness
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Q2. Inroduce your self
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Q3. Why shall we hier you
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