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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The direction of a 3-phase electric motor can be reversed by switching any ______ leads |
2 |
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Wire-to-water efficiency |
The combined efficiency of a pump and motor together also called overall efficiency |
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______ is the term for the combined efficiency of a pump and motor that is obtained by multiplying the pump efficiency time motor efficiency |
Wire to water efficiency |
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To calculate the quantity of watch you multiply? X? |
Amps X volts |
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Motor horsepower is greater than pump horsepower because |
The motor is not 100% efficient |
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Which device changes AC to DC by allowing electrical current to flow in One Direction, but blocking flow in the opposite direction? |
Ractifier |
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Insulators usually fail because of |
Excessive Heat |
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A conductor is a |
Substance, body, device, or wire that readily carries electrical current |
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A device made of two conductors of different Metals joint at their ends. An electrical current is produced when there is a difference in temperature between the ends |
Thermocouple |
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The electrical pressure available to cause a flow of current when an electrical circuit is closed. |
Voltage |
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What is an Ohm? |
A unit of electrical resistance |
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What is the correct equation for Ohm's law? |
Volts= amps × ohms |
I = V/R so V = I × R I = Current V = Volts R = Resistance |
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A One-use circuit breaker |
Fuse |
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Match the electrical terms to those of water |
Current (amps) = Pumps Voltage = Flow Resistance = Pumps Generator= Flow Rectifier= check valve |
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If the amperage draw of a motor and connected pump decreases, how does it affect the amount of water being pumped |
Lower amount of water pumped |
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Amperage is |
The strength of an electrical current. Similar to flow of water in gallons |
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