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20 Cards in this Set
- Front
- Back
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The shaft main function is to transmit______ from the motor to the impeller |
Torque |
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What is the range of specific speeds for propeller pump? |
9000 to 15000 RPM |
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Which of the following prevents the impeller of a pump from turning on the shaft? |
Key |
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A split case pump has three impellers. Which type of multi-stage pump is this? |
Two stage |
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Which type of pressure sensor uses a wire fastened to open a diaphragm? |
Strain gauge |
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A vertical turbine pump would most likely have a specific speed of? |
3000 RPM |
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Which type of valve is used to isolate a pump on a suction side? |
Gate valve |
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Which is at the top of a stuffing box? |
Packing gland |
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The heart of a pump is called a? |
Impeller |
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Which is the most common cause for the surges in the distribution system? |
Power failure shutting down a pump suddenly |
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A split case pump has two equal smaller impellers placed on either side of two equally-sized large impellers how many stages does this pump has? |
2 stages |
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The height of a liquid can be raised vertically by a given pressure is called? |
Pressure head |
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When fully opened, which valve will have the highest head loss? |
Globe Valve |
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Which assembly holds the Lantern ring and packing? |
Stuffing box |
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Which device has the same function as the packing? |
Mechanical seal |
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The lowest pressure point in the pump is the? |
Center of the impeller |
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Which two forces determine the behavior of electricity? |
Electric and magnetic forces |
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Water hammer can be described as? |
Acoustic waves |
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Which is used to stop air leakage into the casing around a pump shaft? |
Seals |
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A pump loses its prime because the suction line has an air pocket. Which is the best solution? |
Open suction piping, air bleed off valves |
