SNG Group Engineer Interview Questions and Answers

STP is a wastewater treatment plant that uses physical, chemical, and biological processes to remove pollutants from sewage.

• STP receives sewage from households and industries through a network of underground pipes.

• The sewage is screened to remove large objects and then sent to a grit chamber to remove sand and grit.

• The sewage is then sent to a primary clarifier where solids settle to the bottom and are removed as sludg...read more

Transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers work on the principle of electromagnetic induction.

• They consist of two or more coils of wire called windings.

• The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.

• When an alternating current flows through the primary...read more

DG sets safety and operation are crucial for uninterrupted power supply.

• DG sets should be installed in a well-ventilated area to avoid carbon monoxide poisoning.

• Regular maintenance and testing of DG sets are necessary to ensure their safe operation.

• Proper grounding and earthing of DG sets are essential to prevent electrical hazards.

• Emergency stop buttons and alarms should be installed to shut down the DG sets in case o...read more