LSS – AALSO 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 - CORRECT ANSWER - Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect to? -
CORRECT ANSWER - Drive shaft flange
Which of the following life support system components could be categorized as mechanical
filtration? - CORRECT ANSWER - Drum filter
Which of the following life support system components uses high flow rates and higher pressures
to mechanically filter water? - CORRECT ANSWER - High pressure sand filter
A _____________ valve uses the guillotine action of a solid wall to control the flow of water: -
CORRECT ANSWER - Gate
A globe valve uses _____________ to control the flow of water: - CORRECT ANSWER -
Spherical articulating disk
Which condition can decrease foam fractionator efficiency? - CORRECT ANSWER - Large
disruptive bubbles in the reaction column
Before entering a confined space, you should do all of the following EXCEPT: - CORRECT
ANSWER - Securely tie a rope around your waist to ensure rescue if necessary
Before entering a confined space, you should do all of the following: - CORRECT
ANSWER - Lock out/tag out all mechanical equipment
Ensure adequate ventilation
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 - CORRECT ANSWER - Peristaltic pump
According to the above diagram, which part of the centrifugal pump does the motor connect to? -
CORRECT ANSWER - Drive shaft flange
Which of the following life support system components could be categorized as mechanical
filtration? - CORRECT ANSWER - Drum filter
Which of the following life support system components uses high flow rates and higher pressures
to mechanically filter water? - CORRECT ANSWER - High pressure sand filter
A _____________ valve uses the guillotine action of a solid wall to control the flow of water: -
CORRECT ANSWER - Gate
A globe valve uses _____________ to control the flow of water: - CORRECT ANSWER -
Spherical articulating disk
Which condition can decrease foam fractionator efficiency? - CORRECT ANSWER - Large
disruptive bubbles in the reaction column
Before entering a confined space, you should do all of the following EXCEPT: - CORRECT
ANSWER - Securely tie a rope around your waist to ensure rescue if necessary
Before entering a confined space, you should do all of the following: - CORRECT
ANSWER - Lock out/tag out all mechanical equipment
Ensure adequate ventilation
