Operating Characteristics of Positive Displacement Pumps Quiz

Creating a void at the suction inlet, filling it with incompressible fluid, and then moving the fluid to the discharge

It supplies a constant volume of fluid regardless of the discharge head

To prevent damage to the pump or piping system if the discharge valve is inadvertently closed

<p>Positive displacement pumps have minute clearance compared to centrifugal pumps</p> Signup and view all the answers

<p>Due to minute clearance between pressure-imposing element and pump housing</p> Signup and view all the answers

<p>They can develop great vacuum and draw fluids to considerable height</p> Signup and view all the answers

<p>They do not develop great suction lift like reciprocating pumps do</p> Signup and view all the answers

<p>Examine the coupling and ensure it is secure and does not have excessive play</p> Signup and view all the answers

<p>Suction and discharge pressures, pump temperature, pump vibration, connections, and seals for leakage</p> Signup and view all the answers

<p>Monitoring lubricator levels, adding oil when required, monitoring suction and discharge pressures, checking for leaks in mechanical seals or packing, tightening the packing if required, reporting maintenance concerns</p> Signup and view all the answers