Hydraulics and Fluid Mechanics in ME
Slip of a reciprocating pump is negative, when

Suction pipe is short and delivery pipe is long and the pump is running at low speeds
Suction pipe is long and delivery pipe is short and the pump is running at high speeds
Suction pipe is short and pump is running at low speeds
Delivery pipe is long and pump is running at high speeds

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Hydraulics and Fluid Mechanics in ME
The total energy of a liquid particle in motion is equal to

Pressure energy - (kinetic energy + potential energy)
Potential energy - (pressure energy + kinetic energy
Pressure energy + kinetic energy + potential energy
Kinetic energy - (pressure energy + potential energy)

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