UPL Utility Operator Interview Questions and Answers

Refrigeration system is a mechanical system that removes heat from a space to lower its temperature.

• Refrigeration systems use a refrigerant to absorb and release heat.

• The basic components of a refrigeration system include a compressor, condenser, expansion valve, and evaporator.

• Examples of refrigeration systems include air conditioning units, refrigerators, and freezers.

Maintaining parameters of an RO plant involves regular monitoring, calibration, and cleaning to ensure optimal performance.

• Regularly monitor key parameters such as flow rate, pressure, and TDS levels to ensure they are within acceptable ranges.

• Calibrate sensors and instruments periodically to maintain accuracy in measurement.

• Perform routine maintenance tasks such as cleaning filters, membranes, and pumps to prevent clo...read more

The vapour compressor cycle is a thermodynamic cycle used in refrigeration systems to remove heat from a low-temperature region and transfer it to a high-temperature region.

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

• During the cycle, the refrigerant undergoes phase changes from vapor to liquid and back to vapor.

• Latent heat refers to the heat absorbed or released d...read more