Wirtgen India Senior Engineer Interview Questions and Answers

Refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature reservoir to a high temperature reservoir.

• Consists of four main components: compressor, condenser, expansion valve, and evaporator

• Refrigerant is compressed in the compressor, then condensed in the condenser, expanded in the expansion valve, and evaporated in the evaporator

• Heat is absor...read more

Refrigeration theory involves the transfer of heat from a low temperature region to a high temperature region using a refrigerant.

• Refrigeration is based on the principles of thermodynamics, specifically the second law which states that heat naturally flows from a higher temperature to a lower temperature.

• The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The...read more

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.

• Pressure vessels are used in various industries such as oil and gas, chemical, pharmaceutical, and food processing.

• They are designed to withstand high pressures and are typically cylindrical or spherical in shape.

• Examples include boilers, storage tanks, and compressed air tanks.

Designing a shell involves considering factors like material, shape, size, and functionality.

• Consider the material of the shell - metal, plastic, or composite

• Determine the shape of the shell based on the intended use - cylindrical, spherical, conical, etc.

• Decide on the size of the shell to accommodate the contents it will hold

• Design the shell with the necessary functionality in mind - openings, closures, ventilation, e