Preview Questions Water Treatment Operator | Role Specific Skill

Question 1: How do you prevent and address wear in a pump impeller in a water treatment system?

Which action should you take?

Choose only one option

By ignoring wear signs and operating the pump until failure

By increasing pump speed to compensate for wear

By monitoring wear patterns, adjusting flow rates, and performing regular maintenance, including replacement when necessary

By using only low-cost materials without considering durability

Question 2: Which maintenance strategy involves repairing or replacing equipment only after it fails?

Which action should you take?

Choose only one option

Reactive maintenance

Predictive maintenance

Preventive maintenance

Condition-based maintenance

Question 3: What does the total organic carbon (TOC) test measure in water quality testing?

Which action should you take?

Choose only one option

The concentration of organic compounds in water

The concentration of dissolved salts in the water

The concentration of suspended solids in water

The amount of oxygen required to oxidize inorganic compounds

Question 4: How does the pH level affect the coagulation and flocculation processes?

Which action should you take?

Choose only one option

Alkaline conditions enhance coagulation by destabilizing colloidal particles

The pH does not significantly impact coagulation processes

Coagulants work best at specific pH levels, with acidic conditions favoring floc formation

Coagulation is more effective at a neutral pH

Question 5: What is the purpose of performing a total organic carbon (TOC) test on water?

Which action should you take?

Choose only one option

To calculate the total suspended solids

To determine the concentration of dissolved gases

To evaluate the total dissolved salts in the water

To measure the total amount of organic carbon in the water

Question 6: Which of the following factors most affects the efficiency of a pump in a water treatment system?

Which action should you take?

Choose only one option

The speed of the impeller in a pump

The size of the inlet pipes

The color of the water being pumped

The system's total dynamic head (TDH)