LSS AALSO Exam Questions and Answers
Verified 100% Correct
Which of the following is a type of chemical filtration?
Carbon filter
Channeling in a sand filter can be caused by
Improper backwashing frequency
Broken lateral
What is the media flow rate range for a sand filter during normal operation?
9-15 Gal/min/ft2
What is the appropriate way to dispose of burnt-out fluorescent bulbs that contain mercury?
Hazardous waste
An aquarium to be used as a sump tank is 6ft long, 2ft wide, and 2ft deep. While
normally operating the sump will be 1/3 full. How many gallons will the sump hold when
normally operating? (You may round answer to the nearest gallon)
60 gallons
OSHA requires SDS be in a central location that is readily accessible unless:
There are no exceptions
You need to refill a tank, which contained 10,000 gallons of water before you removed
25% during a water exchange. You can fill at rate of 3,600 gph. How long will it take you to
refill the tank?
41.66 minutes
Verified 100% Correct
Which of the following is a type of chemical filtration?
Carbon filter
Channeling in a sand filter can be caused by
Improper backwashing frequency
Broken lateral
What is the media flow rate range for a sand filter during normal operation?
9-15 Gal/min/ft2
What is the appropriate way to dispose of burnt-out fluorescent bulbs that contain mercury?
Hazardous waste
An aquarium to be used as a sump tank is 6ft long, 2ft wide, and 2ft deep. While
normally operating the sump will be 1/3 full. How many gallons will the sump hold when
normally operating? (You may round answer to the nearest gallon)
60 gallons
OSHA requires SDS be in a central location that is readily accessible unless:
There are no exceptions
You need to refill a tank, which contained 10,000 gallons of water before you removed
25% during a water exchange. You can fill at rate of 3,600 gph. How long will it take you to
refill the tank?
41.66 minutes
