Calderys India Refractories Production Officer Interview Questions and Answers

Q1. Say something about press filter
Ans. 
Press filter is a device used for separating solids from liquids.
• It works by applying pressure to the mixture to force the liquid through a filter media while retaining the solids.

• It is commonly used in industries such as chemical, pharmaceutical, and food processing.

• Examples of press filters include belt filter press, plate and frame filter press, and rotary vacuum-drum filter.

• Press filters are efficient and cost-effe...read more
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Q2. How to maintain pressure in press filter
Ans. 
To maintain pressure in press filter, ensure proper sealing, check for leaks, and adjust feed rate and pressure settings.
• Check for proper sealing of the filter plates and gaskets

• Inspect for any leaks in the system and repair them promptly

• Adjust the feed rate and pressure settings as per the manufacturer's recommendations

• Regularly clean and maintain the filter to prevent clogging and pressure drop

• Monitor the pressure ga...read more
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Q3. What is the model of hydraulic cylinder in press filter
Ans. 
The model of hydraulic cylinder in press filter depends on the specific press filter being used.
• The model of hydraulic cylinder can vary depending on the size and capacity of the press filter.

• Some common models of hydraulic cylinders used in press filters include tie rod cylinders and welded cylinders.

• The specific model of hydraulic cylinder used in a press filter can be determined by consulting the manufacturer's spec...read more
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Q4. Which type bearing use in bogie wheel
Ans. 
Roller bearings are commonly used in bogie wheels.
• Roller bearings are preferred over plain bearings due to their ability to handle heavy loads and reduce friction.

• Tapered roller bearings are commonly used in locomotive bogie wheels.

• Cylindrical roller bearings are also used in some bogie wheels.

• The type of bearing used depends on the specific application and load requirements.
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I have gone through 20 nos of questions.

Q1. I have technical discussion with unit head.
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Q1. HR person interview for personality test.
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Q1. What is refractories
Ans. 
Refractories are materials that can withstand high temperatures and are used in furnaces, kilns, and other high-temperature applications.
• Refractories are made from materials such as clay, silica, alumina, and magnesia.

• They are used to line furnaces, kilns, and other high-temperature equipment to protect them from heat and corrosion.

• Refractories are classified based on their chemical composition, physical properties, an...read more
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Q2. How many types refractories
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There are three types of refractories: acidic, basic, and neutral.
• Refractories are materials that can withstand high temperatures and are used in furnaces, kilns, and other high-temperature applications.

• Acidic refractories are made of materials like silica and alumina and are used in acidic environments.

• Basic refractories are made of materials like magnesia and dolomite and are used in basic environments.

• Neutral refrac...read more
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Q1. Basic technical questions about planning and procurement.
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Q1. About the previous job role, previous company and some numerical aptitudes.
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Q1. This was the final round, u can think this as the summary of all the round and some extra technical as well as some management questions about the similar field you have applied for.
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