CPO CPO Pool Equipment and Mechanical Systems Questions and Answers 3

Question 1

What is diatomaceous earth (DE) used for in pool filtration?

Accepted Answer

A fossil-based powder that coats filter grids to trap fine particles

Answer

A pH-buffering chemical added to pool water

Answer

A flocculant to clarify cloudy water

Answer

A scale inhibitor for pool surfaces

Question 2

What does SVRS stand for in pool safety equipment?

Accepted Answer

Safety Vacuum Release System

Answer

Surge Volume Relief System

Answer

Skimmer Vent Regulation Standard

Answer

Submersible Valve Return Sensor

Question 3

What is the purpose of a hair and lint strainer (pump pot) in the recirculation system?

Accepted Answer

To catch large debris before it reaches and damages the pump impeller

Answer

To remove dissolved metals from pool water

Answer

To measure flow rate entering the pump

Answer

To add a pre-filter layer of DE before the main filter

Question 4

When sizing a circulation pump, which factor is most important?

Accepted Answer

The required flow rate (GPM) and total dynamic head (TDH)

Answer

The brand of the filter

Answer

The pool's surface area in square feet

Answer

The pool's geographic location

Question 5

What is the function of a pool booster pump?

Accepted Answer

To increase pressure for an automatic pool cleaner or water features

Answer

To prime the main circulation pump at startup

Answer

To pressurize the filter backwash cycle

Answer

To circulate water in the spa during heating

Question 6

What is the recommended approach when a pool pump loses prime?

Accepted Answer

Check for air leaks on the suction side, refill the pump pot, and reprime

Answer

Immediately increase pump speed to maximum

Answer

Add more water on the discharge side

Answer

Replace the impeller before any other action