Cornell Pump Company Pump School 2017 Quiz #2
What statement is true about NPSHr and NPSHa?
It is better to have NPSHr higher than NPSHa
You must have NPSHa higher than NPSHr to avoid cavitation
NPSHr and NPSHa should be equal for a smooth running system
NPSHr and NPSHa are the same thing
What is the rule of thumb safety factor you should have with NPSHa versus NPSHr in a pump system?
NPSHr should be 10’ greater than NPSHa
NPSHa should be same as NPSHr
NPSHa should be at least 2’ greater than NPSHr
NPSHr should be 2’ greater than NPSHa
What type of pump system is depicted in the above image?
Closed Suction supply with Suction Head
Closed Suction supply with Suction Lift
COpen Suction supply with Suction head
Open Suction supply with Suction Lift
Assuming two of the same model pumps are operating in a parallel system as show above, which statement is true?
Flow will be double that of a single pump
Head will be double that of a single pump
Flow will be quadruple that of a single pump
Flow will be the same as a single pump
Which of these components contribute to friction loss?
Pipe
Elbows
Valves
All of the above
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