AALSO Life Support UPDATED ACTUAL
Exam Questions and CORRECT Answers
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 - CORRECT ANSWER - d) Peristaltic pump
According to the diagram, which part of the centrifugal pump does the motor connect to?
a) Pump casing
b) Impeller
c) Volute
d) Drive shaft flange - CORRECT ANSWER - 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) Rotating drum filter
d) None of the above - CORRECT ANSWER - c) Rotating drum filter
Which of the following life supporting 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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) Plug and baffle
d) Spherical articulating disk - CORRECT ANSWER - c) Plug and baffle
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) - CORRECT ANSWER - b) Large
disruptive bubbles in the reaction column
Before entering a confined space, one should do all of the following EXCEPT:
Exam Questions and CORRECT Answers
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 - CORRECT ANSWER - d) Peristaltic pump
According to the diagram, which part of the centrifugal pump does the motor connect to?
a) Pump casing
b) Impeller
c) Volute
d) Drive shaft flange - CORRECT ANSWER - 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) Rotating drum filter
d) None of the above - CORRECT ANSWER - c) Rotating drum filter
Which of the following life supporting 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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) Plug and baffle
d) Spherical articulating disk - CORRECT ANSWER - c) Plug and baffle
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) - CORRECT ANSWER - b) Large
disruptive bubbles in the reaction column
Before entering a confined space, one should do all of the following EXCEPT:
