UMC Operations and Maintenance 2

Question 1

What is the primary purpose of a SCADA system in utility operations?

Accepted Answer

Remote monitoring and control of infrastructure

Answer

SCADA (Supervisory Control and Data Acquisition) systems allow operators to remotely monitor and control utility infrastructure such as pumps, valves, and treatment processes.

Question 2

Which maintenance strategy involves replacing components at fixed time intervals regardless of condition?

Accepted Answer

Preventive maintenance

Answer

Preventive maintenance replaces or services components on a scheduled basis to prevent failures before they occur, regardless of current condition.

Question 3

A utility operator notices increased vibration in a pump. What is the MOST appropriate immediate action?

Accepted Answer

Document and investigate the cause before operating further

Answer

Unusual vibration can indicate misalignment, cavitation, or bearing failure; documenting and investigating protects both equipment and operators.

Question 4

What does the term 'infiltration' mean in the context of wastewater collection systems?

Accepted Answer

Groundwater entering sewer pipes through cracks or joints

Answer

Infiltration is the entry of groundwater into sewer pipelines through defects, increasing flow volumes and treatment costs.

Question 5

Which chemical is most commonly used for primary disinfection in drinking water treatment?

Accepted Answer

Chlorine

Answer

Chlorine is the most widely used primary disinfectant in drinking water treatment due to its effectiveness and residual protection.

(UMC) Utility Management Certification Practice Test

(UMC) Utility Management Certification Practice Test

UMC Operations and Maintenance 2