Senco Gold Interview Questions and Answers

Various chemicals are used in water treatment plants depending on the type of impurities present in the water.

• Coagulants like aluminum sulfate and ferric chloride are used to remove suspended solids

• Chlorine or chloramines are added to disinfect the water

• Lime or soda ash is added to adjust the pH level

• Activated carbon is used to remove organic compounds

• Fluoride is added to prevent tooth decay

• Polyelectrolytes are used to aid in the settling of solids

• Ozone is used as an alternat...read more

The performance air flow switch is a device used in air conditioning systems to monitor and control the airflow.

• It is typically installed in the ductwork of the air conditioning system.

• The switch measures the air velocity or pressure and sends a signal to the control system.

• It helps ensure that the air flow is within the desired range for optimal performance and efficiency.

• If the air flow falls below or exceeds the set limits, the switch can trigger an alarm or shut down the ...read more

SCADA stands for Supervisory Control and Data Acquisition. It is a system used to monitor and control equipment remotely.

• SCADA is a software system that collects data from various sensors and devices

• It allows operators to monitor and control equipment from a central location

• SCADA can be connected to equipment through various communication protocols such as Modbus, OPC, and DNP3

• The equipment must have sensors and devices that can communicate with the SCADA system

• Once connected...read more

Water treatment plant process involves several stages of filtration and disinfection to remove impurities and make water safe for consumption.

• Coagulation and Flocculation

• Sedimentation

• Filtration

• Disinfection

• Storage and Distribution

Maintenance for E TS involves regular inspections, cleaning, and repairs to ensure optimal performance.

• Regular inspections are conducted to identify any issues or potential problems.

• Cleaning of filters, coils, and other components is done to remove dirt and debris that can hinder performance.

• Repairs are carried out as needed to fix any malfunctions or faulty parts.

• Maintenance also includes lubrication of moving parts, checking electrical connections, and calibrating controls....read more