Chemaf SARl Interview Questions and Answers

Logical reasoning, grammar, and coding: two basic level questions.

Q1. Question on core Java
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Q2. Question on SQL and PLSQL
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Q3. Resume based question and on project
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Q1. Resume and project based question
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Q2. What do you like about your current company, and why do you want to join our organization?
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Q1. Which machine used?
Ans. 
Various machines are used in engineering, depending on the specific task at hand.
• Milling machines are used for cutting and shaping solid materials.

• Lathe machines are used for shaping metal or wood by rotating the workpiece against a cutting tool.

• Drilling machines are used for creating holes in materials.

• Grinding machines are used for finishing workpieces by removing excess material.

• CNC machines are computer-controlled
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Q2. What part manufacturers?
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Part manufacturers are companies that produce components or parts used in various products.
• Part manufacturers specialize in producing specific components or parts.

• They often work with engineers to design and create custom parts.

• Examples include companies that manufacture screws, gears, circuit boards, etc.
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Q1. Semiauto or robotic machine?
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Q2. Minimum and maximum tonnage machine how much?
Ans. 
The minimum and maximum tonnage of a machine depends on its type and purpose.
• Minimum and maximum tonnage can vary greatly depending on the type of machine (e.g. hydraulic press, injection molding machine)

• For example, a hydraulic press may have a minimum tonnage of 10 tons and a maximum tonnage of 500 tons

• It is important to consider the intended use of the machine when determining the appropriate tonnage range
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20 questions 40 minutes, 3 type of question easy, medium and hard each of 1, 3 and 5 points respectively, if you answer correct then you move above in difficulty else go down.

Q1. 20 questions 40 minutes same pattern as apti. Questions mainly from power electronics, network theory, machines and analog electronics
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Q2. 2 coding question one easy, one medium. Doing 1 question only may work
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Q1. Picked question from my cv/ project. Complete analysis of boost converter, voltage at no load, saturation of inductor, parasitics etc and much more.
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Q2. Bjt as switch opams mosfet on off charecteristics etc, analog electronics.
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Q3. 2 easy coding problem of searching and sorting algos
Ans. 
Implementing binary search and bubble sort algorithms in Python
• Binary search: Divide and conquer algorithm to find a target value in a sorted array

• Bubble sort: Iteratively swap adjacent elements if they are in the wrong order

• Example for binary search: def binary_search(arr, target):

• Example for bubble sort: def bubble_sort(arr):
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Q1. Question about applications and possibilities.
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Q2. Questions about frameworks.
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Q3. Questions about past projects
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Two LLM based application development

Q1. Design a chat application
Ans. 
Design a chat application for real-time communication
• Use WebSocket for real-time communication

• Implement user authentication and authorization

• Include features like group chat, private messaging, and file sharing

• Design a responsive and user-friendly interface

• Ensure data security and privacy
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Q2. Design a payment gateway
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Design a payment gateway for online transactions
• Implement secure encryption for data transmission

• Integrate with various payment methods like credit cards, PayPal, etc.

• Provide error handling and transaction logging for troubleshooting

• Ensure compliance with PCI DSS standards for data security
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30 question of c code snippet 5 question of aptitude and 2 coding question

Q1. Storage class in c
Ans. 
Storage classes in C define the scope and lifetime of variables.
• There are 4 storage classes in C: auto, register, static, and extern.

• Auto variables are stored in memory and have local scope.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared outside of any function and can be accessed by other files.
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Q2. Mutex and semaphore
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