CastNX Pvt. Ltd. Interview Questions and Answers

Q1. Difference between diode and transistor
Ans. 
A diode is a two-terminal electronic component that allows current to flow in one direction only, while a transistor is a three-terminal electronic component that can amplify or switch electronic signals.
• Diode has two terminals, anode and cathode, and allows current to flow in one direction only

• Transistor has three terminals, base, emitter, and collector, and can amplify or switch electronic signals

• Diodes are used in r...read more
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Q2. Explain micro processor
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A microprocessor is a small electronic device that functions as the central processing unit of a computer.
• Microprocessors are made up of millions of tiny components like transistors, resistors, and capacitors.

• They execute instructions and perform calculations for various tasks.

• Examples of microprocessors include Intel's Core i7, AMD's Ryzen, and ARM's Cortex series.
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Q3. What is communication
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Communication is the process of exchanging information, ideas, thoughts, or feelings between individuals or groups.
• Communication involves both verbal and non-verbal methods.

• Effective communication requires active listening and clear expression.

• Examples include speaking, writing, body language, and gestures.

• Communication can be one-way or two-way.

• Feedback is essential for successful communication.
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Q1. Define drive? And explain working
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A drive is a storage device used to store and retrieve digital information in a computer system.
• Drives can be internal (e.g. hard disk drive) or external (e.g. USB flash drive)

• They use magnetic, optical, or solid-state technology to store data

• Working involves reading and writing data using a read/write head or laser

• Data is stored in sectors and tracks on the drive

• Examples include HDDs, SSDs, CDs, DVDs, and USB drives
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Q2. Osg & safety gear purpose in elevator?
Ans. 
OSG (Over Speed Governor) and safety gear are essential components in elevators to ensure passenger safety in case of overspeed or malfunction.
• OSG is a device that detects overspeed of the elevator car and activates safety mechanisms to stop the elevator.

• Safety gear is a mechanical device that engages with the guide rails to stop the elevator in case of free fall or malfunction.

• Both OSG and safety gear work together to...read more
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Q3. How to do the service elevator field
Ans. 
To service an elevator field, ensure regular maintenance, troubleshoot issues, and follow safety protocols.
• Perform regular maintenance checks on elevator components

• Troubleshoot and repair any issues with the elevator system

• Follow safety protocols and regulations while servicing the elevator field

• Keep detailed records of maintenance and repairs for future reference
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Q4. How to do the service in elevator field?
Ans. 
Service in elevator field involves regular maintenance, repairs, and upgrades to ensure safe and efficient operation.
• Regularly inspecting and lubricating moving parts

• Testing safety features such as emergency brakes

• Replacing worn-out components like cables or pulleys

• Upgrading to newer technology for improved performance

• Responding promptly to service calls for breakdowns or malfunctions
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Q5. How many types of the ENCODERS And why it is used?
Ans. 
There are two main types of encoders: incremental and absolute. Encoders are used to convert motion into an electrical signal for various applications.
• Incremental encoders provide relative position information and are commonly used in speed and position control systems.

• Absolute encoders provide absolute position information and are used in applications where knowing the exact position is critical.

• Encoders are used in r...read more
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Q1. How many days notice period
Ans. 
Typically, the notice period for a Technical Engineer is 30 days.
• Notice period for Technical Engineers is usually around 30 days

• Some companies may have longer notice periods, such as 60 or 90 days

• Shorter notice periods, like 15 days, are less common but possible
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Q2. I given offer letter when will join the Fujitec
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Sales marketing, target BD, OB, sales, relation

About existing wok and target

Q1. Traget achievement
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Q1. Explain about all over engineering journey.
Ans. 
My engineering journey has been filled with challenges, growth, and exciting opportunities.
• Started with a strong foundation in math and science

• Studied mechanical engineering in college, learning about design principles and materials

• Gained hands-on experience through internships and projects

• Continued learning and adapting to new technologies and industry trends

• Currently applying my skills in a professional setting, work
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Q1. Details about family background?
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Q1. 2 product provide which has design in AutoCAD 2d and solidwork.
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Common aptitude test

Q1. General questions about yourself
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Q2. Your hobbies & questions on it.
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Q3. Your family history.
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Q4. Your family financial status .
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Q1. Salary negotiation
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Q2. Joining date & further paper work
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Q1. Coding problems involving fundamental data structures (strings, arrays, and dictionaries) like - Given sequence of words print all anagrams. - Print common pairs within dictionaries. Questions on Python da...read more
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Q2. Questions of DBMS(SQL) or whatever DB mentioned in resume Was asked to write simple queries Rest API Options vs trace call Invoke mock API to fetch data and perform operation on it
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Q3. Basic questions on the technologies and frameworks mentioned in JD and resume like (Flask, FastAPI, Django)
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Q1. C#, WPF architecture, Scenario based questions and current project architecture.
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Q1. Scenario based questions and pattern based questions like explain Problem statement then actuals(process issues/tech gaps etc) then which architecture used then technology skills used
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Q1. HR is not professional , More focus on salary negotiation by catching a single reason for job change or interview process even though candidate have good feedback from panel.
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Q1. They ask about your past and present experience
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Q2. Challenges faced in last fompany
Ans. 
At my last company, I faced challenges with outdated equipment and limited resources.
• Outdated equipment made it difficult to efficiently complete tasks

• Limited resources hindered the ability to innovate and improve processes

• Lack of support from management in upgrading technology and tools

• Difficulty in meeting project deadlines due to these challenges
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