Aquatic Facility Operator
Save
Practice questions for this set
Learn 1 /7 Study with Learn
In a DPD test, what does a flash of pink and then clear tell you?
Choose an answer
1 Cl2 residual is very high 2 Cl2 residual is very low
3 Cl2 is completely absent 4 Cl2 residual is at a stable level
Don't know?
What is NOT one of the Teaching Lessons
AFO's primary
responsibilities?
, What should you do every Facility Inspection
day as a part of your AFO
safety duty program?
How many gallons of approximately 7.5
water is in one cubic ft?
How do you calculate 1. calculate the volume (LxW)xDavg
how many gallons are in a 2. multiple by 7.5 gallons
pool?
During a turnover less than half of the water
Law of Dilution
molecules pass through the filter
What kind of pools need a Special pools
higher turnover?
When do gutters NOT when flooded
work?
What do surge pits need? room to contain surge flow
the amount of water contributed by the bottom outlet
What do modulating float
by slowly restricting the bottom drain valve as the
valves regulate?
water level in the surge pit rises
What are the two types of Self-Priming and Flooded Suction Centrifugal
pumps?
4 inches = 400 gpm
What does eliminating Heated and treated water is equally distributed in the
dead spots mean? pool
Horizontal High Rate Sand increases surface area
Filter
When do you backwash? When the pressure differential indicates it is needed
When do you body during the filter cycle
feeding (DE) ?
a chemical process that destroys organic compounds
What is oxidation?
in the pool water
Save
Practice questions for this set
Learn 1 /7 Study with Learn
In a DPD test, what does a flash of pink and then clear tell you?
Choose an answer
1 Cl2 residual is very high 2 Cl2 residual is very low
3 Cl2 is completely absent 4 Cl2 residual is at a stable level
Don't know?
What is NOT one of the Teaching Lessons
AFO's primary
responsibilities?
, What should you do every Facility Inspection
day as a part of your AFO
safety duty program?
How many gallons of approximately 7.5
water is in one cubic ft?
How do you calculate 1. calculate the volume (LxW)xDavg
how many gallons are in a 2. multiple by 7.5 gallons
pool?
During a turnover less than half of the water
Law of Dilution
molecules pass through the filter
What kind of pools need a Special pools
higher turnover?
When do gutters NOT when flooded
work?
What do surge pits need? room to contain surge flow
the amount of water contributed by the bottom outlet
What do modulating float
by slowly restricting the bottom drain valve as the
valves regulate?
water level in the surge pit rises
What are the two types of Self-Priming and Flooded Suction Centrifugal
pumps?
4 inches = 400 gpm
What does eliminating Heated and treated water is equally distributed in the
dead spots mean? pool
Horizontal High Rate Sand increases surface area
Filter
When do you backwash? When the pressure differential indicates it is needed
When do you body during the filter cycle
feeding (DE) ?
a chemical process that destroys organic compounds
What is oxidation?
in the pool water
