Calderys India Refractories Junior Engineer Interview Questions and Answers

Q1. Basic diploma level question
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My Name is Akash
My father name Shri Rajkishor
I am from Kushinagar ( Uttar Pradesh)
My data of birth 05/04/2005
My diploma course in mechanical engineering

My mobile no XXXXX

Q1. What is diesel engine
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Q2. What is hydraulic system
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Q3. What is 4stock engine
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Q1. What is thermal power
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Q2. What is 4sto k engine
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Q1. Basis question based upon your experience.
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Q1. A string is palindrome or not
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Q2. What is the difference between array and arraylist
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Q3. Brief explanation about TestNg
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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
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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
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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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Q1. Previous work experience
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Q2. How is gratuity calculated
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Gratuity is calculated based on an employee's length of service and last drawn salary.
• Gratuity is a lump sum amount paid to an employee as a token of appreciation for their service.

• The calculation of gratuity depends on the number of years an employee has worked for an organization.

• In India, gratuity is calculated using the formula: (Last drawn salary × 15 × number of years of service) / 26.

• The number of years of servi...read more
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Q1. Basic diploma level question
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