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Hindustan Zinc Instrument Engineer Interview Questions, Process, and Tips

Updated 13 Oct 2021

Hindustan Zinc Instrument Engineer Interview Experiences

1 interview found

Interview Questionnaire 

4 Questions

  • Q1. What is the diffrence between RTD and thermocouple?
  • Ans. 

    RTD measures temperature using resistance while thermocouple uses voltage difference.

    • RTD has higher accuracy and stability than thermocouple.

    • RTD is more expensive than thermocouple.

    • RTD is suitable for precise temperature measurement while thermocouple is better for high temperature measurement.

    • RTD has a linear relationship between resistance and temperature while thermocouple has a non-linear relationship.

    • Examples of R...

  • Answered by AI
  • Q2. How we know the RTD showing correct temperature only use multimeter ?
  • Ans. 

    Correct temperature indication by RTD can be verified using multimeter.

    • Check the resistance value of RTD using multimeter and compare it with the standard resistance-temperature chart.

    • Ensure that the RTD is properly connected to the measuring instrument and there are no loose connections.

    • Perform a calibration check periodically to ensure accurate temperature measurement.

    • Use a reference thermometer to cross-check the te...

  • Answered by AI
  • Q3. Can we use 0-10 v in plc?
  • Ans. 

    Yes, 0-10 V can be used in PLC as an analog input or output signal.

    • PLCs typically have analog input and output modules that can handle 0-10 V signals.

    • The signal can be used to measure or control variables such as temperature, pressure, or flow.

    • The resolution and accuracy of the signal depend on the PLC and the analog module used.

    • Some PLCs may require additional scaling or conversion of the signal to match the desired r...

  • Answered by AI
  • Q4. What is dry and wet wiring in plc ?
  • Ans. 

    Dry wiring refers to wiring without any external protection, while wet wiring involves the use of protective coatings or materials.

    • Dry wiring is typically used in low-risk environments where there is no chance of moisture or other contaminants damaging the wiring.

    • Wet wiring is used in high-risk environments where moisture or other contaminants are present, such as in chemical plants or outdoor installations.

    • Examples of...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interviewer ony expect correct answer if you know correct answer then reply don't argument with interviewer.

Skills evaluated in this interview

Interview questions from similar companies

Round 1 - Technical 

(1 Question)

  • Q1. Vfd, plc, instrumentation. Project or maintenance
Round 2 - HR 

(1 Question)

  • Q1. Six sigma, why do you want to join

Interview Preparation Tips

Interview preparation tips for other job seekers - Remember that GET gets confirmed at Job band 10. So you should not accept job band 10 unless your experience is less than 5 years. Go for, at least, job band 9

I applied via Naukri.com and was interviewed before Jul 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 - Technical 

(3 Questions)

  • Q1. Difference between hysterisis and dead band
  • Ans. 

    Hysteresis is the difference in output for the same input when it is increasing or decreasing. Dead band is the range of input where there is no output change.

    • Hysteresis occurs when the output of a system depends on its past history.

    • Dead band is a region of input where no output change occurs.

    • Hysteresis is commonly seen in magnetic materials.

    • Dead band is used in control systems to prevent oscillations around a set poin...

  • Answered by AI
  • Q2. Orifice plate width calculation
  • Q3. Cavitation and flushing

Interview Preparation Tips

Interview preparation tips for other job seekers - Details engineering related question.in control system should have a good knowledge

Hindustan Zinc Interview FAQs

What are the top questions asked in Hindustan Zinc Instrument Engineer interview?

Some of the top questions asked at the Hindustan Zinc Instrument Engineer interview -

  1. How we know the RTD showing correct temperature only use multimete...read more
  2. What is the diffrence between RTD and thermocoup...read more
  3. What is dry and wet wiring in pl...read more

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Hindustan Zinc Instrument Engineer Salary
based on 29 salaries
₹3.2 L/yr - ₹7.6 L/yr
13% less than the average Instrument Engineer Salary in India
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based on 5 reviews

4.4/5

Rating in categories

3.2

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3.8

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3.6

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3.6

Company culture

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Promotions/Appraisal

3.6

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