Calderys India Refractories Graduate Engineer Trainee (Get) Interview Questions and Answers

Q1. What is relative humidity
Ans. 
Relative humidity is the amount of water vapor present in the air compared to the maximum amount the air can hold at a specific temperature.
• Relative humidity is expressed as a percentage.

• It is an important factor in weather forecasting and climate studies.

• High relative humidity can make the air feel warmer than it actually is, while low relative humidity can make the air feel cooler.

• For example, if the relative humidit...read more
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Q2. Types of pumps?
Ans. 
Types of pumps include centrifugal pumps, positive displacement pumps, and axial flow pumps.
• Centrifugal pumps use a rotating impeller to increase the pressure of a fluid.

• Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the discharge.

• Axial flow pumps move fluid parallel to the pump shaft.

• Examples: Centrifugal pump - used in HVAC systems, Positive displacement pump - used in hydrau...read more
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Q3. Extractive distillation means?
Ans. 
Extractive distillation is a process used to separate components of a liquid mixture by adding a solvent that preferentially removes one component.
• Involves adding a solvent to the mixture to enhance separation

• Solvent selectively removes one component from the mixture

• Used when normal distillation is not effective in separating components
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There is two section
1. general aptitude
2. core domain test

Total 8 people in one round was called.
Topic of GD: diversity in workplace

Q1. Tell about bearing and its type
Ans. 
Bearings are mechanical components that reduce friction between moving parts and support axial and radial loads.
• Bearings are used in various applications such as automobiles, industrial machinery, and aerospace.

• There are several types of bearings including ball bearings, roller bearings, and plain bearings.

• Ball bearings are the most common type and consist of a series of balls held between two rings.

• Roller bearings use...read more
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Q2. What is otto cycle ?
Ans. 
Otto cycle is a four-stroke combustion cycle used in spark-ignition engines.
• It consists of four processes: intake, compression, power, and exhaust.

• It is used in gasoline engines.

• It was developed by Nikolaus Otto in 1876.

• It is also known as the constant volume cycle.
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Q3. What is enthalpy in thermodynamics?
Ans. 
Enthalpy is the sum of internal energy and pressure-volume work done by a system.
• Enthalpy is a thermodynamic property of a system.

• It is represented by the symbol 'H'.

• It is defined as the sum of internal energy and pressure-volume work done by a system.

• Enthalpy change is given by the formula ΔH = ΔU + PΔV.

• It is used to measure the heat content of a system at constant pressure.

• Enthalpy is important in chemical reactions ...read more
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Q4. What is coupling and explain
Ans. 
Coupling refers to the degree of interdependence between two components in a system.
• Coupling is a measure of how closely connected two components are in a system.

• It can be classified as tight coupling or loose coupling.

• Tight coupling means that the components are highly dependent on each other, while loose coupling means that they are more independent.

• Coupling can affect the maintainability, scalability, and flexibilit...read more
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Q1. Questions related to core branch in engineering
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The GD topic is "Is Iphone a technical marvel or a mere status symbol?"

Q1. Questions related to core branch in engineering
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