Shared Flashcard Set

Details

OFD 1-06
Water Supply Course Month 4 probation
25
Other
Not Applicable
11/04/2006

Additional Other Flashcards

 


 

Cards

Term
Name the three methods of moving water. Which one does Oakland use?
Definition
Direct pumping, gravity, and combination.

Oakland has a combination system.
Term
Name the four types of pressure.
Definition
Static, flow, risidual, and normal operating.
Term
Define Velocity
Definition
Velocity is the rate of speed of the water as it moves through a pipe or hose.
Term
Define Friction Loss
Definition
Friction loss is the loss of pressure due to resistance to motion between the water and the inside of the hose or pipe.
Term
Where does our water system originate?
Definition
The Pardee Reservoir.
Term
Define Clear Well.
Definition
A Clear Well is the first reservoir for potable water, after the treatment at a filter plant.
Term
A fire hydrant which receives water from only one direction is known as a __________ hydrant.
Definition
Dead end hydrant
Term
The three main parts of a gridded water distribution system are ________, _________, and __________.
Definition
Primary feeders(24"-54"), secondary feeders(12"-24"), and distibutors(4"-10").
Term
Gate pot covers colors are_________,_______, and ________. There colors mean what?
Definition
Red= A closed zone valve.
Blue= An open valve.
White= A hydrant gate valve.
Term
Approximately how many hydrants are in the city of Oakland?
Definition
6500
Term
This symbol -> indicates what?
Definition
This symbol indicates a hydrant on a dead-end main.
Term
This symbol ->| indicates what?
Definition
This symbol indicates the hydrant is the last hydrant on a dead-end main.
Term
A red cap on a hydrant indicates what?
Definition
A red cap indicates 0-50 psi.
Term
A white cap on a hydrant indicates what?
Definition
A white cap indicates 51-119 psi.
Term
A green cap on a hydrant indicates what?
Definition
A green cap indicates 120+ psi.
Term
A red topped hydrant indicates what?
Definition
A red topped hydrant indicates 0-500 gpm.
Term
A orange topped hydrant indicates what?
Definition
A orange topped hydrant indicates 501-999 gpm.
Term
A green topped hydrant indicates what?
Definition
A green topped hydrant indicated 1000-1499 gpm.
Term
A blue topped hydrant indicates what?
Definition
A blue topped hydrant indicates 1500+ gpm.
Term
Zones cover approximately how many feet of elevation?
Definition
Roughly 200 ft.
Term
How many suction hydrants are there?
Definition
14
Term
Define friction loss
Definition
The loss of pressure due to the friction between the water and the walls of the pipe and the friction between water molecules.
Term
By doubling the size of the pipe, it's carrying capacity is increased almost _______ times.
Definition
6
Term
A PWSS can lay line for approximately how far?
Definition
1 mile
Term
The four components of a water supply system are__________, ___________, _________, and ___________.
Definition
The source of supply, the processing or treatment facilities, the mechanical or other means of moving water, and the distribution system, including storage.
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