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Hindustan Zinc Instrument Engineer Interview Questions, Process, and Tips for Experienced

Updated 13 Oct 2021

Hindustan Zinc Instrument Engineer Interview Experiences for Experienced

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

I applied via Approached by Company and was interviewed before May 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 

(1 Question)

  • Q1. DM water parameter . Cold startup Coal analysis.

Interview Preparation Tips

Topics to prepare for Hindalco Industries Assistant Manager interview:
  • Boiler Operations
  • Turbine operation
  • Electrical protection
Interview preparation tips for other job seekers - Will be as per details mentioned in your resume.

I appeared for an interview in Oct 2016.

Interview Questionnaire 

6 Questions

  • Q1. Introduce yourself.
  • Ans. 

    Experienced retail professional with strong leadership skills and a passion for customer service.

    • Over 5 years of retail management experience

    • Proven track record of increasing sales and improving customer satisfaction

    • Strong leadership and team-building skills

    • Passionate about providing excellent customer service

    • Bachelor's degree in Business Administration

  • Answered by AI
  • Q2. How is alumina obtained from bauxite?
  • Ans. 

    Alumina is obtained from bauxite through the Bayer process.

    • Bauxite is crushed and mixed with sodium hydroxide to form a slurry.

    • The slurry is heated and pressurized in a digester to dissolve the alumina content.

    • The resulting solution is cooled and filtered to remove impurities.

    • The purified solution is then heated to precipitate the alumina as a white powder.

    • The alumina powder is washed, dried, and calcined to produce pu...

  • Answered by AI
  • Q3. Reaction for Al extraction from alumina.
  • Ans. 

    The reaction for Al extraction from alumina involves the reduction of alumina using carbon or electrolysis.

    • Alumina (Al2O3) is first converted into aluminum chloride (AlCl3) by reacting with hydrochloric acid.

    • The aluminum chloride is then reduced to aluminum metal by either carbon reduction or electrolysis.

    • In carbon reduction, carbon (usually in the form of coke) is heated with the aluminum chloride to produce aluminum ...

  • Answered by AI
  • Q4. Stainless steel production.
  • Q5. Types of cast iron.
  • Ans. 

    There are four main types of cast iron: gray iron, white iron, ductile iron, and malleable iron.

    • Gray iron is the most common type and has excellent castability and good machinability.

    • White iron is very hard and brittle, often used for wear-resistant applications.

    • Ductile iron has high strength and ductility, making it suitable for a wide range of applications.

    • Malleable iron is heat-treated to improve its strength and du

  • Answered by AI
  • Q6. Location constraints and little info about family.

Interview Preparation Tips

Round: Test
Experience: Basic Aptitude and Verbal Test - Easy Questions
Tips: Improve Speed and Accuracy
Duration: 30 minutes
Total Questions: 35

Round: Group Discussion
Experience: Two sects formed; one supporting the argument and other opposing it. Wage gap, Indian Mine Law, social pressure, patriarchal mentality and crime against women were discussed.
Tips: Communication skills are more important than content. Show confidence and speak fluently. Factual and grammatical errors can be ignored.
Duration: 15 minutes

Round: Technical + HR Interview
Experience: They were chilled out and were giving time to speak. Little hints were also being given.
Tips: Be thorough with basics and don't give nonsensical answers if you don't know.

Skills: Technical Knowledge(ML
College Name: NIT Raipur
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I appeared for an interview before Mar 2024.

Round 1 - HR 

(1 Question)

  • Q1. Introduction & JD related queries & questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Avoid joining, as you may experience harassment. If physical harassment is not feasible, they will resort to mental harassment. Women employees, in particular, are not safe in this environment. There are no facilities for female employees, and the condition of the working women's hostel is deplorable.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I appeared for an interview before Feb 2024.

Round 1 - HR 

(1 Question)

  • Q1. Past company details
Round 2 - Technical 

(2 Questions)

  • Q1. Furnace maintenance
  • Q2. Hydraulic and pneumatic system
Round 3 - Technical 

(1 Question)

  • Q1. PLC, HMI, sensor
Round 4 - Technical 

(1 Question)

  • Q1. Motor, protection, relay
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Sep 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 

(1 Question)

  • Q1. Protections and Interlock, Light Up procedures
Round 3 - Plant Head 

(1 Question)

  • Q1. Interaction, Asking about previous plants
Round 4 - HR 

(1 Question)

  • Q1. Salary negotiations
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(1 Question)

  • Q1. Job experience details
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Oct 2023. There was 1 interview round.

Round 1 - Group Discussion 

GD on the Topic - Quality of coal is deteriorating, what should the company do?

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is the name of furnace?
  • Ans. 

    The name of the furnace is typically based on its function or design, such as blast furnace, muffle furnace, or electric furnace.

    • Furnaces can be named based on their heating method, such as electric, gas, or oil furnace

    • Some furnaces are named after their specific function, like blast furnace used in metal smelting

    • Others may be named after their design, such as muffle furnace used for controlled heating

  • Answered by AI
  • Q2. Flux percentage??
Round 2 - Assignment 

What are the daily work and what is the reporting procedure?

Round 3 - HR 

(2 Questions)

  • Q1. What is expected salary
  • Q2. How much man power you control in daily shift
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Dec 2022. There were 5 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 - Aptitude Test 

Basic mathematics and english

Round 3 - HR 

(1 Question)

  • Q1. About yourself and salary
Round 4 - Technical 

(4 Questions)

  • Q1. What is hyper seever
  • Ans. 

    Hyper Server is a high-performance server software that enables efficient data processing and communication.

    • Hyper Server is designed to handle large volumes of data and perform complex computations.

    • It provides fast and reliable communication between clients and servers.

    • Hyper Server is commonly used in industries such as finance, telecommunications, and scientific research.

    • Examples of Hyper Server implementations includ...

  • Answered by AI
  • Q2. Network-load-balancing
  • Q3. Firewall configurations
  • Q4. Active Directory Administration
Round 5 - HR 

(1 Question)

  • Q1. Salary expectations and notice period

Skills evaluated in this interview

Hindustan Zinc Interview FAQs

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

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

  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 26 salaries
₹3.4 L/yr - ₹8.3 L/yr
At par with the average Instrument Engineer Salary in India
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based on 5 reviews

4.4/5

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3.2

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3.8

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3.3

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3.6

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3.6

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