Hindustan Zinc Interview Questions, Process, and Tips

100 questions with no negative marking and 1.5hrs test

Q1. What components are found in Coal ?
Ans. 
Coal contains various components including carbon, sulfur, hydrogen, oxygen, and nitrogen.
• Coal is primarily composed of carbon, which makes up about 60-80% of its total weight.

• Sulfur is another common component found in coal, which can contribute to air pollution when burned.

• Coal also contains varying amounts of hydrogen, oxygen, and nitrogen, which can affect its energy content and burning characteristics.

• Trace elemen...read more
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Q2. What is the efficiency down when 1 % moisture increase in boiler furnace?
Ans. 
Increase in 1% moisture in boiler furnace leads to decrease in efficiency.
• Moisture in fuel leads to incomplete combustion and heat loss.

• Efficiency can decrease by 0.5-1% for every 1% increase in moisture.

• Regular maintenance and monitoring can prevent excessive moisture in furnace.
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Q3. What are slugging and fauling of coal?
Ans. 
Slugging and fauling are terms used in coal handling. Slugging refers to the formation of lumps in coal, while fauling refers to the accumulation of fine coal dust.
• Slugging occurs when coal particles stick together due to moisture or other factors, forming large lumps that can clog coal handling equipment.

• Fauling occurs when fine coal dust accumulates in the air and settles on surfaces, creating a potential fire hazard...read more
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Very basic aptitude test, if you know basics about your field you'll pass through this round.

A moderate level GD, most of the elimination happen in this round, you only need to get one chance and tell your points

Q1. Tell me something about yourself
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Q2. Basic technical questions related to your field.
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Q1. What is your name?
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Q2. Definition of fitter
Ans. 
A fitter is a skilled worker who assembles, installs, and maintains machinery and equipment.
• Fitters use hand tools and power tools to assemble parts according to blueprints or specifications

• They may also be responsible for troubleshooting and repairing machinery

• Examples of fitters include pipefitters, millwrights, and machinery maintenance workers
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Q3. Used to do the earlier work.
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Q4. What work did you do?
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Q5. How many types of gauges are there?
Ans. 
There are various types of gauges used in different industries for measuring different parameters.
• Types of gauges include pressure gauges, temperature gauges, fuel gauges, thread gauges, and bore gauges.

• Each type of gauge is designed for specific measurement purposes.

• Gauges can be analog or digital depending on the application.

• Some common examples include micrometers, calipers, dial indicators, and depth gauges.
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Q1. Genal taip , Technical
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Q1. Who are you job hai kya
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Q2. Job Hai to coll karna
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Q3. Interviews kob ho gaa
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