Are You A Pump Ninja?
5 Questions
| Total Attempts: 39
.
Questions and Answers
- 1.Given a specific fluid to be pumped, at what viscosity range should you begin to apply viscous corrections to the hydraulic performance for a centrifugal pump?
- A.
5 to 15 centipoise
- B.
Above 300 centipoise
- C.
Above 600 centipoise
- D.
Centrifugal pumps do not require viscosity corrections.
- 2.For a given size piping system, adding a second identical pump in parallel will …
- A.
Increase the flow rate to a point determined by the system curve.
- B.
Double the flow.
- C.
Double the pressure (head).
- D.
None of these answers is correct.
- 3.Water will boil at what temperature (F)?
- A.
It depends on the pressure.
- B.
212
- C.
100
- D.
33
- E.
600
- 4.When starting up a centrifugal pump, the suction valve should always be ...
- A.
Fully open.
- B.
Partially open, then opened the rest of the way a few minutes afterward.
- C.
Fully closed.
- D.
It doesn't matter, because it is a centrifugal pump.
- 5.Which fluid, when subjected to cavitation conditions, will normally create the most damage in a pump (assuming all other conditions are the same)?
- A.
Water at 68 F
- B.
Gasoline (87 octane) at 75 F
- C.
Ethylene glycol mixed with water at 50 percent (180 F)
- D.
Ethanol at 75 F
- E.
Naval jet fuel JP5 at 68 F
- F.
Water at 300 F
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