Ambuja Cements Technician Interview Questions and Answers for Experienced

Q1. Tell me about yourself.
Ans. 
I am an engineer with a passion for problem-solving and innovation.
• Experienced engineer with expertise in mechanical design and analysis

• Strong knowledge of CAD software such as AutoCAD and SolidWorks

• Proven track record of successfully completing projects on time and within budget

• Excellent problem-solving and analytical skills

• Effective communicator and team player

• Constantly seeking opportunities to learn and grow in the
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Q1. Self introduction and CTC
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Q1. Your Experience and basic with friendly
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Q1. Basic and friendly
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Q1. Why we maintain burning zone temperature in rotary kiln?
Ans. 
Maintaining burning zone temperature in a rotary kiln is crucial for optimal material processing and product quality.
• Ensures complete combustion of fuels, leading to efficient energy use.

• Controls the formation of desired chemical compounds, such as clinker in cement production.

• Prevents the formation of undesirable phases or compounds that can affect product quality.

• Facilitates the proper melting and sintering of raw ma...read more
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Q2. How Nox formed in rotary kiln?
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NOx formation in rotary kilns occurs due to high temperatures and combustion processes, leading to nitrogen oxidation.
• High temperatures (over 1200°C) in rotary kilns facilitate the oxidation of nitrogen.

• Fuel combustion in the presence of air generates NOx as a byproduct.

• The reaction between nitrogen and oxygen at elevated temperatures forms nitric oxide (NO).

• In the presence of excess oxygen, NO can further oxidize to n...read more
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Q3. What happen when your secondary air temperature is in low range & dowan trend📉 .
Ans. 
Low secondary air temperature can indicate inefficiencies in combustion and affect system performance.
• Indicates potential combustion inefficiency, leading to incomplete fuel burning.

• Can cause increased emissions of unburned hydrocarbons and carbon monoxide.

• May result in lower overall system efficiency, impacting energy output.

• Example: In a boiler system, low secondary air temperature can lead to soot formation.

• Could tr...read more
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Q4. What is the function of dip tube in preheatar Cyclone
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A dip tube in a preheater cyclone directs feed material for efficient heat exchange and separation.
• The dip tube helps in directing the feed material into the cyclone for optimal flow.

• It ensures that the material is evenly distributed for effective heat transfer.

• By controlling the entry point, it minimizes turbulence and enhances separation efficiency.

• For example, in a cement plant, the dip tube aids in preheating raw m
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Q1. Technical Skills about infrastructures.
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Q2. Pavement Experience.
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Its too large discussing cant explain here.

Q1. Kiln operation,raw mix design
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Q2. Mill operation and optimisation
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