AALSO Life Support Operator Questions and
Answers Verified 100% Correct
A positive displacement pump that utilizes a set of rollers that compress and rotate across an
elastomeric tube to pump a fluid is a:
A. Flexible impeller pump
B. Diaphragm pump
C. Centrifugal pump
D. Peristaltic pump
D. Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect
to?
A. Pump casing
B. Impeller
C. Volute
D. Drive shaft flange
D. Drive shaft flange
Which of the following life support system components could be categorized as mechanical
filtration?
A. Ultraviolet sterilizer
B. Ozone contact tank
C. Drum filter
D. None of the above
C. Drum filter
Which of the following life support system components uses high flow rates and higher
pressures to mechanically filter water?
A. Ultraviolet sterilizer
, B. Carbon filter
C. High pressure sand filter
D. None of the above
C. High pressure sand filter
A _____________ valve uses the guillotine action of a solid wall to control the flow of water:
A. Butterfly
B. Ball
C. Gate
D. Globe
C. Gate
A globe valve uses _____________ to control the flow of water:
A. Wafer-like articulating disk
B. Guillotine action of a solid wall
C. Gate
D.Spherical articulating disk
C.
Which condition can decrease foam fractionator efficiency?
A. Consistent flow rate through the fractionator
B. Large disruptive bubbles in the reaction column
C. Uniform bubble size in the reaction column
D. Higher salinity (such as full strength seawater)
B. Large disruptive bubbles in the reaction column
Before entering a confined space, you should do all of the following EXCEPT:
A. Lock out/tag out all mechanical equipment
B. Ensure adequate ventilation C. Test oxygen levels and dangerous gases
D. Securely tie a rope around your waist to ensure rescue if necessary
Answers Verified 100% Correct
A positive displacement pump that utilizes a set of rollers that compress and rotate across an
elastomeric tube to pump a fluid is a:
A. Flexible impeller pump
B. Diaphragm pump
C. Centrifugal pump
D. Peristaltic pump
D. Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect
to?
A. Pump casing
B. Impeller
C. Volute
D. Drive shaft flange
D. Drive shaft flange
Which of the following life support system components could be categorized as mechanical
filtration?
A. Ultraviolet sterilizer
B. Ozone contact tank
C. Drum filter
D. None of the above
C. Drum filter
Which of the following life support system components uses high flow rates and higher
pressures to mechanically filter water?
A. Ultraviolet sterilizer
, B. Carbon filter
C. High pressure sand filter
D. None of the above
C. High pressure sand filter
A _____________ valve uses the guillotine action of a solid wall to control the flow of water:
A. Butterfly
B. Ball
C. Gate
D. Globe
C. Gate
A globe valve uses _____________ to control the flow of water:
A. Wafer-like articulating disk
B. Guillotine action of a solid wall
C. Gate
D.Spherical articulating disk
C.
Which condition can decrease foam fractionator efficiency?
A. Consistent flow rate through the fractionator
B. Large disruptive bubbles in the reaction column
C. Uniform bubble size in the reaction column
D. Higher salinity (such as full strength seawater)
B. Large disruptive bubbles in the reaction column
Before entering a confined space, you should do all of the following EXCEPT:
A. Lock out/tag out all mechanical equipment
B. Ensure adequate ventilation C. Test oxygen levels and dangerous gases
D. Securely tie a rope around your waist to ensure rescue if necessary
