Chapter VII Flashcards
Historians have determined that the first mechanical pump was developed around ________.
- 200 BC
Which of the Rotary pumps is ideal for high pressure situations
- Rotary gear pumps
In what year was a gas engine developed that could drive both the engine and pump
- 1910
What were the first type of pumps used for firefighting called
- Piston displacement pumps
What setting on the transfer valve has the advantage in that the engine and pump work at slower revolutions per minute
- series
What holds the water in the impeller
- The shrouds
The power of a miship mounted pump is transferred by which of the following methods
- electronically, manually, or with a vacuum
Piston pumps are still used today for firefighting. They are good for ____________ applications such as brush and wildland firefighting
- high-pressure
Impellers can either be ___________or___________.
- single suction, double suction
What are the three factors that affect the efficiency of a centrifugal pump
- Pressure, Speed and Quantity
What is placed at the eye to prevent water from leaking back into the impeller once it has left the discharge
- wear ring
