Podcast
Questions and Answers
What are the only moving parts of a centrifugal pump?
What are the only moving parts of a centrifugal pump?
- Motor and impeller
- Shaft and bearings
- Impeller and shaft (correct)
- Impeller and bearings
What is the function of pump bearings?
What is the function of pump bearings?
- To support the impeller (correct)
- To reduce friction in the pump
- To regulate the speed of the motor
- To hold the motor in place
What type of bearings are typically used by pumps?
What type of bearings are typically used by pumps?
- Ball bearings
- Shell (sleeve) bearings (correct)
- Tapered roller bearings
- Needle roller bearings
How are most centrifugal pumps driven?
How are most centrifugal pumps driven?
What is required for the pump and motor shafts to be coupled together for direct drive?
What is required for the pump and motor shafts to be coupled together for direct drive?
Why is perfect alignment difficult to maintain during operation?
Why is perfect alignment difficult to maintain during operation?
What does Figure 15(a) illustrate?
What does Figure 15(a) illustrate?
What can cause misalignments of shafts connected by rigid couplings?
What can cause misalignments of shafts connected by rigid couplings?
What is one of the main problems contributing to misalignment according to the text?
What is one of the main problems contributing to misalignment according to the text?
What can flexible couplings compensate for during operation?
What can flexible couplings compensate for during operation?
Why do some equipment intentionally misalign at installation?
Why do some equipment intentionally misalign at installation?
What method is suitable for all types of couplings to accurately align shafts?
What method is suitable for all types of couplings to accurately align shafts?
What is the standard industry practice for measuring misalignment?
What is the standard industry practice for measuring misalignment?
What can be used to transmit precise laser measurements to a hand-held computer during laser alignment?
What can be used to transmit precise laser measurements to a hand-held computer during laser alignment?
What is used to calculate the misalignment and show where to shim the motor during laser alignment?
What is used to calculate the misalignment and show where to shim the motor during laser alignment?
