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Sona Comstar Maintenance Engineer Interview Questions and Answers

Updated 16 Jan 2025

Sona Comstar Maintenance Engineer Interview Experiences

2 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Dec 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. If single phase power is 220 volts, why is 3 phase 440 volts and not 660?
  • Ans. 

    3 phase power is 440 volts instead of 660 volts due to the configuration of the phases and the relationship between them.

    • 3 phase power consists of three separate voltages that are 120 degrees out of phase with each other

    • The line-to-line voltage in a 3 phase system is √3 times the phase voltage

    • In a 3 phase system, the line-to-line voltage is 440 volts (220 volts * √3)

  • Answered by AI
  • Q2. Explain function of hydraulic and pneumatic system
  • Ans. 

    Hydraulic systems use liquid to transmit power, while pneumatic systems use gas.

    • Hydraulic systems use oil or water as the fluid to transmit power

    • Pneumatic systems use air or other gases as the fluid to transmit power

    • Hydraulic systems are typically used in heavy machinery like excavators and cranes

    • Pneumatic systems are commonly found in applications like air brakes in vehicles

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Jul 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. About education ,qualifications, background
Round 3 - HR 

(1 Question)

  • Q1. About Carrier journey , self growth .

Interview Preparation Tips

Interview preparation tips for other job seekers - Excellent

Maintenance Engineer Interview Questions Asked at Other Companies

Q1. 1)which refrigeration cycle used in chilling plant?
asked in MRF Tyres
Q2. How much bar using in hydraulic, and what is meaning of NAC.
Q3. What are the processes involved in Heat Treatment of metals and w ... read more
asked in Ceat Tyres
Q4. How many types of Valve in Instrumentation..?
Q5. What was the most difficult electrical installation or repair you ... read more

Interview questions from similar companies

I applied via Naukri.com and was interviewed before Feb 2020. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. 1) Intro
  • Q2. 2) Why you want to join us
  • Q3. 3) what is your achievments
  • Ans. 

    I have successfully implemented preventive maintenance programs, reducing equipment downtime by 20%.

    • Implemented preventive maintenance programs

    • Reduced equipment downtime by 20%

    • Improved overall equipment reliability

    • Streamlined maintenance processes

    • Trained and mentored junior maintenance staff

  • Answered by AI
  • Q4. 4)Mttr,Mtbf,history card, oee,PM,TPM,CBM,Predictive maintenance,

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't be nervous your interviewer have less knowledge than you 😃😃

I applied via Company Website and was interviewed in May 2019. There were 4 interview rounds.

Interview Questionnaire 

5 Questions

  • Q1. How many types of Valve in Instrumentation..?
  • Ans. 

    There are several types of valves in instrumentation.

    • Gate valve

    • Ball valve

    • Butterfly valve

    • Globe valve

    • Check valve

    • Diaphragm valve

    • Needle valve

    • Plug valve

    • Pressure relief valve

    • Safety valve

  • Answered by AI
  • Q2. What is PT,LT and LVDT..?
  • Ans. 

    PT, LT and LVDT are types of sensors used in engineering for measuring pressure, temperature and displacement respectively.

    • PT stands for Pressure Transducer and is used to measure pressure in various applications such as hydraulic systems, engines, and pipelines.

    • LT stands for Linear Transducer and is used to measure temperature in various applications such as engines, HVAC systems, and industrial processes.

    • LVDT stands ...

  • Answered by AI
  • Q3. How can you Calibrate of I/P converter..?
  • Ans. 

    Calibration of I/P converter involves adjusting the output pressure to match the input signal.

    • Connect the I/P converter to a pressure source and a signal generator

    • Adjust the input signal to the desired value

    • Measure the output pressure and adjust it to match the input signal

    • Repeat the process at different input signal levels to ensure accuracy

    • Document the calibration results for future reference

  • Answered by AI
  • Q4. What is Load cell and how you will calibrate..?
  • Ans. 

    A load cell is a transducer that converts force into an electrical signal. Calibration involves applying known loads and adjusting the output signal.

    • Load cell measures force or weight

    • It converts the force into an electrical signal

    • Calibration involves applying known loads and adjusting the output signal

    • Calibration can be done using a calibration machine or weights

    • Calibration should be done regularly to ensure accurate r

  • Answered by AI
  • Q5. Have you Programming knowledge if yes then how many types of plc you know and how can we work on this..?

Interview Preparation Tips

Interview preparation tips for other job seekers - Please Learn Practically and basically bcz basic part is must for improve your knowledge and crack any type interview 😉

I applied via Recruitment Consultant and was interviewed before Jun 2020. There was 1 interview round.

Interview Questionnaire 

7 Questions

  • Q1. Which types of lacquer used on lens and Housing ?
  • Ans. 

    The types of lacquer used on lens and housing include acrylic lacquer, polyurethane lacquer, and epoxy lacquer.

    • Acrylic lacquer is commonly used on lens and housing due to its high transparency and UV resistance.

    • Polyurethane lacquer provides excellent durability and chemical resistance, making it suitable for lens and housing.

    • Epoxy lacquer offers superior adhesion and impact resistance, making it a preferred choice for

  • Answered by AI
  • Q2. What is size fine filter ?
  • Ans. 

    A size fine filter is a type of filter used to remove small particles or impurities from a fluid or gas.

    • Size fine filters are commonly used in industries such as manufacturing, pharmaceuticals, and food processing.

    • They are designed to capture particles that are smaller than what can be filtered by regular filters.

    • These filters can be made of various materials such as paper, fabric, or synthetic fibers.

    • Examples of size ...

  • Answered by AI
  • Q3. On which material direct metalizing is applicable ?
  • Ans. 

    Direct metalizing is applicable on materials that can conduct electricity.

    • Direct metalizing is a process of coating a non-metallic surface with a thin layer of metal.

    • The material should be able to conduct electricity for direct metalizing to be applicable.

    • Materials like plastic, glass, and ceramics can be direct metalized.

    • Direct metalizing is commonly used in the automotive, aerospace, and electronics industries.

  • Answered by AI
  • Q4. PC Material
  • Q5. How much UV energy is required for curing?
  • Ans. 

    The amount of UV energy required for curing depends on the type of material being cured and the intensity of the UV light.

    • UV energy required for curing varies depending on the material being cured

    • Intensity of the UV light also affects the amount of energy required

    • UV energy is typically measured in Joules per square centimeter (J/cm²)

    • Examples of materials that require UV curing include adhesives, coatings, and inks

  • Answered by AI
  • Q6. 2500 ~ 3500
  • Q7. How much DFT is required as per standard ?
  • Ans. 

    The amount of DFT required as per standard varies depending on the specific industry and project requirements.

    • The required amount of DFT (Design for Testability) is determined by industry standards and project specifications.

    • Different industries may have different standards for DFT.

    • The complexity and size of the project also influence the amount of DFT required.

    • DFT techniques include scan chains, built-in self-test (BI...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - It must be done as like process catroled

I applied via Approached by Company and was interviewed in Sep 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Tell me about yourself.

Interview Preparation Tips

Interview preparation tips for other job seekers - Maintenance department experience
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Feb 2023. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Why Are you changing Current Company??
  • Q2. Why you want to join Uno Minda?
Round 2 - Technical 

(2 Questions)

  • Q1. What is your KRA and job Role?
  • Q2. Have you Audit Supplier as well as Vendor Visit?
  • Ans. 

    Yes

    • Yes, I have audited suppliers and conducted vendor visits.

    • During my previous role as a Senior Engineer, I was responsible for auditing suppliers to ensure compliance with quality standards and specifications.

    • I have also conducted vendor visits to assess their capabilities, production processes, and quality control measures.

    • These audits and visits helped in identifying potential risks, improving supplier performance,...

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. What is your future Goals?
  • Q2. Can you join us by Tomarrow?
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Jan 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Basic theoretical Questions of B.tech which are for fresher they asked for experienced also.
  • Q2. Star delta diagram Resistance circuit
Round 3 - HR 

(1 Question)

  • Q1. Why switching previous company
Round 4 - Plant Head 

(1 Question)

  • Q1. Personal information

Interview Preparation Tips

Interview preparation tips for other job seekers - Want relax and job security comes here. But not expect increment.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Scm role and responsibilities
  • Q2. Earlier experience and roles
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is cycle time?
  • Ans. 

    Cycle time is the total time taken to complete a process or task from start to finish.

    • Cycle time is a key metric in process improvement and efficiency analysis.

    • It helps in identifying bottlenecks and areas for improvement in a process.

    • For example, in manufacturing, cycle time can refer to the time taken to produce one unit of a product.

    • Reducing cycle time can lead to increased productivity and cost savings.

  • Answered by AI
  • Q2. What is line balancing
  • Ans. 

    Line balancing is the process of assigning tasks to workstations in a way that evens out the workload and maximizes efficiency.

    • Involves distributing work evenly among workstations

    • Helps in reducing idle time and bottlenecks

    • Improves productivity and efficiency

    • Example: In a manufacturing plant, line balancing ensures each workstation has a similar amount of work to do

  • Answered by AI

Sona Comstar Interview FAQs

How many rounds are there in Sona Comstar Maintenance Engineer interview?
Sona Comstar interview process usually has 2 rounds. The most common rounds in the Sona Comstar interview process are HR, Resume Shortlist and Technical.
How to prepare for Sona Comstar Maintenance Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Sona Comstar . The most common topics and skills that interviewers at Sona Comstar expect are Electrical Maintenance, PLC and Siemens PLC.
What are the top questions asked in Sona Comstar Maintenance Engineer interview?

Some of the top questions asked at the Sona Comstar Maintenance Engineer interview -

  1. If single phase power is 220 volts, why is 3 phase 440 volts and not 6...read more
  2. Explain function of hydraulic and pneumatic sys...read more
  3. About Carrier journey , self growt...read more

Tell us how to improve this page.

Sona Comstar Maintenance Engineer Interview Process

based on 2 interviews

Interview experience

5
  
Excellent
View more
Sona Comstar Maintenance Engineer Salary
based on 10 salaries
₹3 L/yr - ₹6.7 L/yr
11% more than the average Maintenance Engineer Salary in India
View more details

Sona Comstar Maintenance Engineer Reviews and Ratings

based on 7 reviews

3.9/5

Rating in categories

3.8

Skill development

3.6

Work-life balance

3.6

Salary

3.8

Job security

3.9

Company culture

3.6

Promotions

3.7

Work satisfaction

Explore 7 Reviews and Ratings
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