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Reliance Industries Control & Instrumentation Engineer Interview Questions and Answers

Updated 15 Apr 2023

Reliance Industries Control & Instrumentation Engineer Interview Experiences

2 interviews found

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 

(6 Questions)

  • Q1. Why 4-20 mA Preferred over 0-20 mA signal ?
  • Ans. 

    4-20 mA signal is preferred over 0-20 mA signal due to its ability to detect faults and provide a clear zero point.

    • 4-20 mA signal has a clear zero point, making it easier to detect faults in the system.

    • It allows for a wider range of measurement values, as the 0-4 mA range can be used to indicate faults or out-of-range conditions.

    • 4-20 mA signal is less susceptible to noise and interference compared to 0-20 mA signal.

    • It ...

  • Answered by AI
  • Q2. What is the Purpose of an orifice Tab?
  • Ans. 

    An orifice tab is used to accurately measure the flow rate of a fluid through a pipeline.

    • It creates a differential pressure across the orifice plate, which is proportional to the flow rate.

    • The tab is placed upstream of the orifice plate to ensure accurate measurement.

    • The tab can be designed in different shapes and sizes depending on the application.

    • It is commonly used in industries such as oil and gas, chemical, and wa...

  • Answered by AI
  • Q3. How do you identify an orifice in the pipeline ?
  • Ans. 

    An orifice in a pipeline can be identified by measuring the pressure drop across it.

    • Measure the pressure drop across the pipeline using a differential pressure transmitter

    • Compare the pressure drop with the expected value for the given orifice size

    • Use a flow meter to confirm the flow rate through the orifice

    • Inspect the pipeline for any markings or labels indicating the presence of an orifice

  • Answered by AI
  • Q4. Why is the orifice tap provided ?
  • Q5. Why is the Orifice tab provided ?
  • Ans. 

    Orifice tab is provided to indicate the size of the orifice and its flow rate.

    • Orifice tab helps in identifying the size of the orifice and its flow rate.

    • It is used in flow measurement devices like orifice plates, venturi meters, etc.

    • The tab is usually made of stainless steel and is welded to the orifice plate.

    • The tab is marked with a number or letter to indicate the size of the orifice.

    • The flow rate can be calculated u...

  • Answered by AI
  • Q6. What is the main difference between RTD and Thermistor?
  • Ans. 

    RTD measures temperature using resistance while thermistor uses resistance-temperature relationship.

    • RTD has a linear resistance-temperature relationship while thermistor has a non-linear one.

    • RTD has a higher accuracy and stability compared to thermistor.

    • RTD is more expensive than thermistor.

    • RTD is commonly used in industrial applications while thermistor is used in consumer electronics.

    • Examples of RTD include platinum,...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Job vacancy declered to easily apply to jobseer In instrumentation & control engineer
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Process control parameters
  • Q2. Control process parameters

Control & Instrumentation Engineer Interview Questions Asked at Other Companies

asked in RSWM
Q1. Explain working principle of oxygen analyser and which system you ... read more
asked in RSWM
Q2. Do you know about DCS programming languages and logic modificatio ... read more
Q3. What is the main difference between RTD and Thermistor?
Q4. Why is a 4-20 mA signal preferred over a 0-20 mA signal?
Q5. What are the differences in the wiring configurations of star and ... read more

Interview questions from similar companies

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

I applied via Company Website and was interviewed in May 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Types of Instruments
  • Ans. 

    Instruments used in control and instrumentation include sensors, transmitters, controllers, and actuators.

    • Sensors: devices that detect changes in physical properties and convert them into electrical signals (e.g. temperature sensors, pressure sensors)

    • Transmitters: devices that send signals from sensors to controllers (e.g. signal transmitters)

    • Controllers: devices that receive signals from sensors and transmitters to re...

  • Answered by AI
  • Q2. PID loop working in Complete
  • Ans. 

    PID loop is a control system feedback mechanism used in industrial processes to maintain desired setpoints.

    • PID stands for Proportional, Integral, Derivative

    • Proportional term responds to the current error

    • Integral term corrects past errors

    • Derivative term predicts future errors

    • PID controller continuously calculates an error value as the difference between a desired setpoint and a measured process variable

    • Example: PID loop...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Strong basic

I applied via Recruitment Consulltant and was interviewed in Apr 2022. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. General technical questions from Resume
Round 2 - Technical 

(1 Question)

  • Q1. Sizing and equipment selection
Round 3 - Behavioral interview 

(1 Question)

  • Q1. Situational based questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Horrible experience:
Totally three rounds of interview where their first two rounds are technical and third round was behaviour interview . The interview went well and they informed me that the result will be announced after 2 weeks of time.
But even after 1 month , I haven't gotten any feedback from them , but the job application status changed to "No longer under construction" in the company's website .They were not even bother to give feedback to the candidate.
Exxon Mobil Bangalore team requires a lot of improvement in the way they are treating candidates and their interviews are very sub standard and needs lot of improvement .
Most of the interviewers were Ex Reliance industries limited employees who run their Own lobby and denying the opportunities for better candidates due to insecurity....So Exxon Mobil Bangalore is in a pathetic situation.....

What people are saying about Reliance Industries

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a business intelligence analyst
3d
HR round at Capgemini.
Hi Cleared L1 and appeared for L2 at Capgemini both went well for Marketing and communication roles, didn't hear from HR about the update on my L2 interview. How much time will it take to appear for the HR round. What is round after this ? I did an online technical assessment as well and it has been approved before my L2.
Got a question about Reliance Industries ?
Ask anonymously on communities.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed before Jan 2022. 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 - Technical 

(2 Questions)

  • Q1. Related to industrial instrumentation like pressure sensor, temperatures measurements device, control system and many things related to core
  • Q2. What is instrumentation and why you choose instrumentation
  • Ans. 

    Instrumentation is the science of measuring and controlling physical variables.

    • Instrumentation involves the use of various instruments and devices to measure and control physical variables such as temperature, pressure, flow, and level.

    • It is used in various industries such as manufacturing, oil and gas, and healthcare.

    • Instrumentation plays a crucial role in ensuring the safety and efficiency of industrial processes.

    • I c...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep learning and work hard and try to be update .. Always search for opportunity thnks alot
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

80 question technical and 20 question non technical. (As -mathe, reasoning and current affairs).

Round 2 - Document verification 

(4 Questions)

  • Q1. Tenhnical questions of coare subject
  • Q2. As Electronics device and circuit.
  • Q3. Process Control system
  • Q4. Digital electronics
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.

Round 1 - Group Discussion 

Normal GD.Just brush up contemporary topics

Round 2 - One-on-one 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Mechanical Engineering Technical questions related to refrigeration

Interview Preparation Tips

Topics to prepare for Bharat Petroleum Assistant Manager interview:
  • Mechanical Engineering
  • General knowledge
Are these interview questions helpful?

I appeared for an interview before Dec 2020.

Interview Questionnaire 

2 Questions

  • Q1. Basic questions testing your technical skills
  • Q2. Be confident with your answers

Interview Preparation Tips

Interview preparation tips for other job seekers - Most of the questions asked were basic technical questions. Being confident is the key

Manager Interview Questions & Answers

GAIL user image Anonymous

posted on 1 Aug 2022

I applied via Company Website and was interviewed before Aug 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Technical questions.

Round 2 - One-on-one 

(1 Question)

  • Q1. About petrochemical operations.

Interview Preparation Tips

Interview preparation tips for other job seekers - You should be technically sound about your subject. You should know the business profile of the company as well as it's different operations.

I applied via Walk-in and was interviewed in Nov 2019. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. I'm autocad draftsman solidworks designer engineer
  • Q2. Production quality manufacturing company

Interview Preparation Tips

Interview preparation tips for other job seekers - Mechanical engineering

Reliance Industries Interview FAQs

How many rounds are there in Reliance Industries Control & Instrumentation Engineer interview?
Reliance Industries interview process usually has 2 rounds. The most common rounds in the Reliance Industries interview process are Resume Shortlist, Technical and One-on-one Round.
What are the top questions asked in Reliance Industries Control & Instrumentation Engineer interview?

Some of the top questions asked at the Reliance Industries Control & Instrumentation Engineer interview -

  1. What is the main difference between RTD and Thermist...read more
  2. Why 4-20 mA Preferred over 0-20 mA signa...read more
  3. How do you identify an orifice in the pipelin...read more

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Overall Interview Experience Rating

4/5

based on 1 interview experience

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Reliance Industries Control & Instrumentation Engineer Salary
based on 25 salaries
₹6 L/yr - ₹15.5 L/yr
47% more than the average Control & Instrumentation Engineer Salary in India
View more details

Reliance Industries Control & Instrumentation Engineer Reviews and Ratings

based on 7 reviews

4.4/5

Rating in categories

4.3

Skill development

3.8

Work-life balance

3.1

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4.5

Job security

3.9

Company culture

3.7

Promotions

3.9

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