AALSO LSS PRACTICE QUESTIONS AND ANSWERS 100% ANSWERED.

AALSO LSS PRACTICE QUESTIONS
AND ANSWERS 100% ANSWERED.
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 - ANSWERD)Peristaltic pump

which part of the centrifugal pump does the motor connect to?
A)Pump casing
B)Impeller
C)Volute
D)Drive shaft flange - ANSWERD)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 - ANSWERC)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 - ANSWERC)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 - ANSWERC)Gate

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) - ANSWERB)Large disruptive bubbles
in the reaction column