AALSO Life Support Operator Questions
and Answers Verified 100% Correct
Channeling in a sand filter can be caused by
A. Improper backwashing frequency
B. Broken lateral
C. Low filtering flow rates
D. Both A & B
D. Both A & B
What is the media flow rate range for a sand filter during normal operation?
A. 5-10 Gal/min/ft2
B. 9-15 Gal/min/ft2
C. 15-18 Gal/min/ft2
D. 18-20 Gal/min/ft2
B. 9-15 Gal/min/ft2
What is the appropriate way to dispose of burnt-out fluorescent bulbs that contain mercury?
A. Recycle
B. Compost
C. Landfill
D. Hazardous waste
D. 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) A. 120 gallons
B. 24 gallons
C. 179 gallons
D. 60 gallons
D. 60 gallons
OSHA requires SDS be in a central location that is readily accessible unless:
A. They are secured in a locked office or file
B. They are on or near the door to the room where the chemicals are used
C. There are no exceptions
D. The chemicals are only being stored, not used
C. 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?
A. 41.66 minutes
B. 31.66 minutes
C. 60.66 minutes
D. 66.66 minutes
A. 41.66 minutes
A pump suction line pulls from a circular tank that sits 10 feet below the pump and discharges
to the display aquarium 100 feet above on the fourth floor. What is the total static head at
the pump?
A. 110 ft
B. 10 ft
and Answers Verified 100% Correct
Channeling in a sand filter can be caused by
A. Improper backwashing frequency
B. Broken lateral
C. Low filtering flow rates
D. Both A & B
D. Both A & B
What is the media flow rate range for a sand filter during normal operation?
A. 5-10 Gal/min/ft2
B. 9-15 Gal/min/ft2
C. 15-18 Gal/min/ft2
D. 18-20 Gal/min/ft2
B. 9-15 Gal/min/ft2
What is the appropriate way to dispose of burnt-out fluorescent bulbs that contain mercury?
A. Recycle
B. Compost
C. Landfill
D. Hazardous waste
D. 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) A. 120 gallons
B. 24 gallons
C. 179 gallons
D. 60 gallons
D. 60 gallons
OSHA requires SDS be in a central location that is readily accessible unless:
A. They are secured in a locked office or file
B. They are on or near the door to the room where the chemicals are used
C. There are no exceptions
D. The chemicals are only being stored, not used
C. 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?
A. 41.66 minutes
B. 31.66 minutes
C. 60.66 minutes
D. 66.66 minutes
A. 41.66 minutes
A pump suction line pulls from a circular tank that sits 10 feet below the pump and discharges
to the display aquarium 100 feet above on the fourth floor. What is the total static head at
the pump?
A. 110 ft
B. 10 ft
