PDX_10_Plumbing Building Design

Question 0

Pressure measured by a pilot tube, consisting of static pressure and velocity pressure.

Answer 0

Total pressure

Question 1

The pressure required to overcome friction and push water vertically, or the pressure caused at the bottom of a column of water. Measured in inches of water

Answer 1

Static head

Question 2

Instrument used with a manometer or pressure gauge to measure the velocity of air or water in a duct or pipe

Answer 2

Pilot tube

Question 3

Clean, clear and potable water systems under pressure

Answer 3

Supply systems

Question 4

Measure of the acidity or basicity of a solution on a scale of 1 to 14 where seven is neutral and which is more acidic and more alkaline.

Answer 4

Zero is more acidic and 14 is more alkaline in the pH test.

Question 5

Water that contains mineral deposits that can clog up piping, cause mineral buildup in heat exchangers, and place a toll on hydronic systems.

Answer 5

Hard water

Question 6

Ion exchange or water softening method in which hard water passes through minerals then salt Tank so that minerals in the hard water don’t solidify

Answer 6

Zeolite

Question 7

Caused by suspended material in the water like silt, Clay, organic material

Answer 7

Turbidity

Question 8

Liquid waste

Answer 8

Effluent

Question 9

One cubic foot of water equals # gallons

Answer 9

7.5 gallons

Question 10

One PSI will raise a column of water this many feet

Answer 10

2.31 feet

Question 11

The maximum height water can be sucked up because static head becomes equivalent to atmospheric pressure

Answer 11

33 feet

atmospheric pressure is 14.7 psi

Question 12

Typical minerals that cause hard water

Answer 12

Limestone calcium magnesium

Question 13

Color or odor caused by organic matter, inorganic salts, or dissolved gases can be corrected through

Answer 13

Filtration and chlorination

Question 14

Chlorine may be added to water to kill bacteria at this amount

Answer 14

.5 ppm

Parts per million

Question 15

Typical water consumption for residential:

Answer 15

5–10 gal/min minimum

Question 16

Wells can be typically in this depth range

Answer 16

25 feet – 100 feet plus

Question 17

Types of well pump:

A wheel-like impeller, rotated by a vertical shaft aligned w/ supply and discharge,

motor above / below ground

Answer 17

Centrifugal

Question 18

Types of well pump:

Cylinder and piston with valves

Answer 18

Reciprocating

Question 19

Types of well pump:

Spiral rotor on the shaft with a rubber sleeve, perpendicular to supply/discharge.
As rotator turns it sucks water and discharges at the other end

Answer 19

Rotary pump

Question 20

Types of well pump:

Uses a Venturi effect and a waterjet sent from the surface to impel water to rise

Answer 20

Ejector

Question 21

Types of well pump:

Can be used for Wells under 25 feet

Answer 21

Suction pumps

Question 22

Types of well pump:

For deep wells with high-capacity

Answer 22

Turbine pumps

Question 23

Types of well pump:

For small residential, a pump below the waterline pumps water to a pressure tank

Answer 23

Subversive pumps

Question 24

Newman municipal water systems typically pump through water mains with pressure of

Answer 24

50 psi

Question 25

This party is responsible to extend lines from property to the Watermain if not adjacent to the property line

Answer 25

Property owner

Question 26

These are installed at the edge of the property and inside the building at the service entrance

Answer 26

Service controls, or valves

Question 27

Used to protect the potable water supply from contaminated water by stopping return water from the building from flowing back into the public water supply

Answer 27

Reduce pressure backflow preventer

Question 28

Water supply system that uses a pressurized tank that's to be in the basement to supply water under pressure to floors above

Answer 28

Hydropneumatic system

Question 29

Pressure from the Watermain is used to pump directly to the fixtures

Answer 29

Upfeed system Upfield systems Limited to 40-60 feet building height

Question 30

Primary disadvantage of a down feed system

Answer 30

Added structure to support weight of system on roof

Question 31

In a downfeed system pressure regulator valves are required after about this height

Answer 31

138 feet

Question 32

Pressurized tank in the basement supplies water to higher levels using compressed air to push water up

Answer 32

Pneumatic tank

Question 33

Multiple variables speed pumps provide water pressure at whatever demand rate the building requires

Answer 33

Tankless Doesn't take up space, but pumps can I have a short lifecycle

Question 34

Waterflow that occurs when soil is infiltrated to full capacity

Answer 34

Surface runoff

Question 35

Process in which water on the ground surface enters the soil

Answer 35

Water infiltration

Question 36

The reservoir which debris in sediment from run off my settle before it enters the storm drain

Answer 36

Catch basin

Question 37

Drain or channel that permits the passage of water below ground. Typically a large diameter concrete or metal pipe often used under a road

Answer 37

Culvert

Question 38

Underground conduit used to carry rainwater from a catch basin to a body of water

Answer 38

Storm drain

Question 39

Underground structure, above the water table, the disposes of unwanted water by dissipating it into the ground

Answer 39

Drywell

Question 40

Perforated pipe surrounded by granular fill used to release hydrostatic pressure from foundation or retaining walls

Answer 40

Drain tile

Question 41

Order from toilets, including human waste

Answer 41

Blackwater

Question 42

Catch grease, hair, oil rags, money, etc. that gets into a plumbing system

Answer 42

Interceptor

Question 43

Keeps methane gas from entering a building well also catching Greece and small jewelry before going down the sanitary system

Answer 43

Trap

Question 44

Safety feature, faucets are mounted 2 inches minimum above the highest possible level of waste water to prevent any contaminated water being safe and back in

Answer 44

Air gaps

Question 45

A pump used in hot water systems for maintaining for circulation of water or other liquid

Answer 45

Circulator

Question 46

A piece of metal placed in the water tank to attract mineral deposits so they don't form on tank or equipment

Answer 46

Anode

Question 47

Three strategies for storm water quality control

Answer 47

Infiltrate run off into the soil. Retain/detain run off for a later release. Convey run off slowly through vegetation.

Question 48

Single supply pipe water heater

Answer 48

Minimizes piping cost. | Can result in longer wait times for water.

Question 49

Two pipe circulating system hot water:

Answer 49

All fixtures connected with supply and return. Water slowly circulates through natural convection. Hot water rises to highest fixtures and falls after cooling.

Question 50

When sizing hot water systems for commercial and institutional buildings it's important to consider the trade-off between

Answer 50

Recovery time and storage capacity

Question 51

Hot water heater size is based on two factors:

Answer 51

Total daily use | And peak-hour demand