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AUX SYSTEMS 101 QUIZ questions and answers
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AUX SYSTEMS 101 QUIZ questions and answers
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AUX SYSTEMS 101 QUIZquestions and answers
The emergency bilge suction valve is used __________ - answer If the
bilges become flooded and they can not be emptied by any other
means (used for large amounts of liquids & pumped to a
manageable level)
Which of the following statements represents the proper relative
direction of flow through a globe valve? - answer direction of flow
should be from below the seat (allows valve to be somewhat easer
to open)
A centrifugal bilge pump requires priming - answer due to the
inability of this type of pump to lift water to cover the suction (eye)
of the impeller (pump requires it because it can't do it itself
Which of the listed conditions can lead to cavitation in a centrifugal
pump? - answer Vapor pockets formed in the suction flow stream
(*If you're stretching capacity of pump, vapor bubbles can occur)
What is a function of the wearing rings used in most centrifugal
pumps? - answer Isolate the discharge side from the suction side
(*Discharge will just return to suction without isolation)
Pipe threads are cut with a taper to ______________. - answer provide
a leak proof fit (*as tightening of pipes threads provide a tighter
seal)
Which of the listed pipe sizes is not commonly used? - answer
5/8inch (5/8in tubing used but not PIPING)
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