LSS – AALSO Questions with Complete
Solutions
Which condition decreases foam fractionator efficiency? Correct Answ_Too little air injected
into the foam fractionator.
Dirty riser tube/chimney, and collection cup.
Inconsistent flow rates and varying water level within the fractionator column.
A 68,000 gallon Hippo exhibit has 4 recirculation pumps rated at 340 gpm each. What is the
turnover time in minutes for this system? Correct Answ_50 minutes
If a pump is rated for 960 gpm, how many cubic feet per second (cfs) would that be? Correct
Answ_2.14 cfs
Hazard(s) associated with UV bulbs Correct Answ_Contain mercury
Sharp when broken
High voltage when operating
, The effectiveness of disinfection of potentially pathogenic waterborne microorganisms through
the use of the ozone is influenced the most by which of these factors? Correct
Answ_Concentration
What does LOTO stand for? Correct Answ_Lock Out Tag Out
The tank material, HDPE is also known as. Correct Answ_High density polyethylene
Which of the following can change when powerheads are used? Correct Answ_Water
temperature can increase
What is a common cause of dead-heading a pump? Correct Answ_The valve(s) directly
downstream from the pump is(are) closed
A positive displacement pump that utilizes a set of rollers that compress and rotate across an
elastomeric tube to pump a fluid is a Correct Answ_Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect to?
Correct Answ_Drive shaft flange
Solutions
Which condition decreases foam fractionator efficiency? Correct Answ_Too little air injected
into the foam fractionator.
Dirty riser tube/chimney, and collection cup.
Inconsistent flow rates and varying water level within the fractionator column.
A 68,000 gallon Hippo exhibit has 4 recirculation pumps rated at 340 gpm each. What is the
turnover time in minutes for this system? Correct Answ_50 minutes
If a pump is rated for 960 gpm, how many cubic feet per second (cfs) would that be? Correct
Answ_2.14 cfs
Hazard(s) associated with UV bulbs Correct Answ_Contain mercury
Sharp when broken
High voltage when operating
, The effectiveness of disinfection of potentially pathogenic waterborne microorganisms through
the use of the ozone is influenced the most by which of these factors? Correct
Answ_Concentration
What does LOTO stand for? Correct Answ_Lock Out Tag Out
The tank material, HDPE is also known as. Correct Answ_High density polyethylene
Which of the following can change when powerheads are used? Correct Answ_Water
temperature can increase
What is a common cause of dead-heading a pump? Correct Answ_The valve(s) directly
downstream from the pump is(are) closed
A positive displacement pump that utilizes a set of rollers that compress and rotate across an
elastomeric tube to pump a fluid is a Correct Answ_Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect to?
Correct Answ_Drive shaft flange
