Hi everyone, my name is Maruti Ramgonda Vhananavar, and I’m here to share my experience interviewing for a Graduate Engineer Trainee (GET) position in Instrumentation at Finolex Industries, through Naukri Campus.
This article is designed to help anyone preparing for a similar role at Finolex, giving you insights into the interview process, the rounds involved, and valuable tips for success.
About Finolex Industries
Finolex Industries Limited is a well-established Indian conglomerate known for its PVC pipes and fittings. They’re a leader in the plastic piping industry, with a strong reputation for quality and innovation.
Established in 1956, the company has a strong reputation for quality and innovation. Finolex offers a variety of career opportunities for engineers across various disciplines, including instrumentation.
My Interview Journey (Date: November 25th, 2018)
The selection process for the GET (Instrumentation) role at Finolex consisted of three rounds:
- Written Test (Aptitude & Technical)
- Technical Interview
- HR Interview
Finolex Round 1: Written Test (Aptitude & Technical)
The first hurdle was a written test designed to assess your general aptitude and technical knowledge in Instrumentation.
Aptitude Section:
- This section evaluated your problem-solving skills, logical reasoning, and basic English comprehension.
- Brush up on areas like data interpretation, syllogisms, and analogies. Practice online aptitude tests to get comfortable with the format and time constraints.
Technical Section:
- This section tests your understanding of core Instrumentation concepts.
- Revise your knowledge of process control, measurement principles, and common instruments used in industrial settings.
- For Instrumentation Engineers, familiarity with control loops, sensors, and transmitters would be beneficial.
Preparation Tips:
- Utilize textbooks and online resources specific to Instrumentation Engineering.
- Solve previous years’ technical interview question papers (if available) to understand the exam pattern and difficulty level.
- Time management is effective during the test. Don’t get stuck on a single question; move on and come back later if time permits.
- Practice these 30+ Instrumentation Interview Questions [With Answers] frequently asked in the interviews.
Round 2 of Finolex Interview: Technical Section
The technical interview was an opportunity to delve deeper into your technical expertise and understanding of Instrumentation principles.
What to Expect:
- Be prepared to discuss your final year project and explain the concepts involved.
- The interviewer might ask questions about specific instruments, calibration procedures, and process control applications.
- They might also present you with hypothetical scenarios to assess your problem-solving approach in an industrial setting.
Finolex Interview Questions With Answers
Below are the technical questions I was asked during the interview.
What is MATLAB? Where MATLAB can be applicable?
Answer: MATLAB is a high-level programming language and interactive environment for numerical computation, visualization, and programming. It allows users to perform matrix manipulations, data plotting and analysis, algorithm implementation, and various mathematical computations. MATLAB finds applications in engineering, science, finance, and beyond, wherever numerical computation and visualization are required.
What is a P-code?
Answer: P-code is a type of file generated by MATLAB’s compiler. It stands for “Portable Code.” P-code files are encrypted versions of MATLAB functions, making them harder to reverse-engineer. They are often used to distribute MATLAB code while protecting intellectual property.
Mention the type of operators used in the MATLAB environment.
Answer: MATLAB supports various types of operators:
Arithmetic operators (+, -, *, /)
Relational operators (==, ~=, <, >, <=, >=)
Logical operators (&&, ||, ~)
Bitwise operators (&, |, ~, <<, >>)
Assignment operators (=, +=, -=, *=, /=)
Special operators like colon operator (:), transpose operator (.’), and element-wise operators (.* and ./)
How will you add noise to an image in MATLAB?
Answer: You can add noise to an image in MATLAB using functions like imnoise(). For example:
noisy_image = imnoise(original_image, ‘gaussian’, mean, variance);
This adds Gaussian noise to the original image with specified mean and variance.
On what machines MATLAB will run?
Answer: MATLAB can run on various platforms including Windows, macOS, and Linux. It is also available on some mobile platforms like iOS and Android. Additionally, MATLAB can run on different hardware architectures, including x86, x86-64, ARM, and others.
What do you mean by Linear Wave Shaping? Give some examples.
Answer: Linear wave shaping refers to the process of modifying the waveform of a signal while preserving its linearity. Examples include:
- Filtering: Passing a signal through a filter to remove or attenuate certain frequencies.
- Amplification: Increasing or decreasing the amplitude of a signal linearly.
- Attenuation: Reducing the amplitude of a signal linearly.
- Delay: Introducing a time delay to the signal without distortion.
What are multivibrators? What is its stable state?
Answer: Multivibrators are electronic circuits capable of generating non-sinusoidal waveforms such as square, rectangular, or sawtooth waves. They have two stable states: the “high” state (also called the “set” state) and the “low” state (also called the “reset” state).
What are the basic principles of Miller and Bootstrap’s time base generator?
Answer: Miller Time Base Generator: It uses a Miller integrator circuit where the output voltage is integrated with respect to time. A sawtooth waveform is generated at the output.
Bootstrap Time Base Generator: It employs a capacitor connected between the output and the input of an operational amplifier. This capacitor charges and discharges linearly, producing a sawtooth waveform.
What is your understanding of synchronization? Give an example.
Answer: Synchronization refers to the coordination or alignment of multiple processes or systems to operate in unison or at the same rate. For instance, in digital communication, synchronization ensures that the transmitter and receiver clocks are aligned so that the receiver can sample the incoming signal accurately. In video processing, synchronization ensures that audio and video streams are played in perfect alignment.
Preparation Tips:
- Thoroughly revise your academic knowledge of Instrumentation subjects.
- Prepare to explain your final year project in detail, highlighting your contributions and learnings.
- Practice answering common Instrumentation interview questions you can find online.
- Demonstrate a keen interest in the field and a willingness to learn.
Round 3: HR Interview
The HR interview aimed to assess your suitability for the company culture and the GET program.
Common Questions for Finolex HR Interview:
- Tell me about yourself.
- Why do you want to work at our company?
- What are your career goals and aspirations?
- Describe a challenging situation you faced and how you overcame it.
- How can we be sure of your loyalty to our organization?
- How would we target the rural segment for the range of our products?
- Are you an Introvert or an Extrovert?
- Do you have any questions for us?
Preparation Tips
- Research Finolex Industries, their values, and their vision for the GET program.
- Prepare answers that showcase your skills, strengths, and how you can contribute to the company.
- Be confident, and enthusiastic, and express your genuine interest in the opportunity.
- Prepare some insightful questions about the company, the role, or the GET program.
I’m happy to share that I successfully cleared all three rounds and received a job offer for a GET (Instrumentation) position at Finolex with a package of 2.3 Lakhs per annum (as of November 2018).
FAQs on Finolex Company GET Interview
What are the benefits of working for Finolex?
Finolex offers competitive salaries, growth opportunities, and a stable work environment in a leading Indian industry
How long does it take to get hired at Finolex?
The hiring process can vary but typically involves written tests and interviews. Be prepared for a wait of 2-3 weeks.
You can also check Renault Nissan Interview Questions for GET.
What is the salary at Finolex for freshers?
Salaries vary depending on role and experience. The minimum salary at Finolex Cables depends on the role you are applying for. For example, a Quality Engineer’s minimum salary is ₹4.5 Lakhs per year, while a Maintenance Engineer is ₹3.8 Lakhs per year.
Is Finolex a good company to work for?
Finolex has a strong reputation in the industry. Research company reviews and culture to see if it aligns with your goals.
Who is the CEO of Finolex India?
Ajit Venkataraman has been the CEO of Finolex Industries since August 1, 2022. He has experience in strategic planning, managing JVs, product development and management, new market entry, and business turnaround.