Introduction to Private Water Supply Systems

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Author:
iLLian
ID:
288317
Filename:
Introduction to Private Water Supply Systems
Updated:
2014-11-14 00:11:21
Tags:
Plumbing 4th Period
Folders:
Plumbing
Description:
Course Material - Private Water Supply And Water Treatment - Introduction to Private Water Supply Systems
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  1. How much water is needed per person on a daily basis?
    A) 1 to 1.5 U.S. gals (4 to 6 litres)
    B) 25 U.S. gals (100 litres)
    C) 60 U.S. gals (230 litres)
    D) 15 U.S. gals (60 liters)
    C) 60 U.S. gals (230 litres)
    (this multiple choice question has been scrambled)
  2. Why does the amount of water need by hogs vary so greatly?
    A) Hogs need more water to keep cool on hot days
    B) On sunny days, the farmer must use more water to create mud for the hogs to prevent sunburn
    C) Gender, Size difference, and lactating status create varying demands
    D) Large hogs must drink frequently to prevent overheating
    C) Gender, Size difference, and lactating status create varying demands
    (this multiple choice question has been scrambled)
  3. What is the rule of thumb for sizing sprinkler lines based on National Fire Protection Standard 13D?
    A) a detailed sizing method is needed to properly size the sprinkler system
    B)1" service line, 1" header to sprinkler system, 1/2" to individual sprinklers
    C) 3/4" line to a fixture and a sprinkler served by the fixture supply line
    D) 3/4" line to supply one sprinkler, 1" to supply two sprinkler heads
    D) 3/4" line to supply one sprinkler, 1" to supply two sprinkler heads
    (this multiple choice question has been scrambled)
  4. How is freeze protection provided for a cistern that cannot be buried deeply enough?
    A) By placing insulation suitable for the purpose over the tank
    B) By heat tracing the outside shell of the tank
    C) By filling the tank with warm water
    D) By having the tank close to a basement wall
    A) By placing insulation suitable for the purpose over the tank
    (this multiple choice question has been scrambled)
  5. Why does a buried cistern required a vent line for the cistern?
    A) The vent allows the cistern to dry out when the cistern is emptied
    B) The vent line prevents  water in the cistern from going stale
    C) The vent allows the cistern to operate under atmospheric pressure conditions
    D) The vent line is a convenient place to run electrical wiring for a submersible pump placed inside the cistern
    C) The vent allows the cistern to operate under atmospheric pressure conditions
    (this multiple choice question has been scrambled)
  6. After an uncoated concrete cistern is filled, you observe the water level has lowered in the cistern, even though no one has used any water. What caused this?
    A) Fittings attached to the cistern may have cracked the concrete
    B) Uncoated concrete is porous, and will allow water to soak into it, lowering the cistern water level
    C) The cistern probably has a leak in it
    D) The cistern is out of level and water has leaked out of the cistern lid
    B) Uncoated concrete is porous, and will allow water to soak into it, lowering the cistern water level
    (this multiple choice question has been scrambled)
  7. Why is the vent terminal of a cistern arranged to point back toward the ground?
    A) so precipitation cannot enter the vent
    B) to provide air circulation to the cistern
    C) to stop birds or insects from entering the vent
    D) to differentiate between the fill line and the vent line
    A) so precipitation cannot enter the vent
    (this multiple choice question has been scrambled)
  8. Why is drinking water with no additional treatment rarely collected directly from lakes?
    A) Lakes are known for containing oxygen-poor water
    B) Screening of inlet placed in a lake can be very expensive
    C) The water may appear to be clean, but could be contaminated by animals using the watershed for the lake
    D) Algal blooms may make the water objectionable during some portions of the year
    C) The water may appear to be clean, but could be contaminated by animals using the watershed for the lake
    (this multiple choice question has been scrambled)
  9. Why are water intakes placed at various level in a lake?
    A) an upper level intake may need to be closed off when summer activity on the lake is at a high concentration to prevent swimmers from contacting the inlet
    B) to provide for a maximum intake of water without disturbing any one layer of the lake too badly
    C) to allow an operator to collect the cleanest possible water from a lake during periods of the year when the lake turns over due to temperature differential
    D) a lower level intake may collect oxygen-poor water from the lake bottom
    D) a lower level intake may collect oxygen-poor water from the lake bottom
    (this multiple choice question has been scrambled)
  10. How are springs classified into three different categories?
    A) by the amount of water coming from the spring
    B) by how the water from the spring comes to the grounds surface
    C) by the temperature of the water issuing from the spring
    D) by the turbidity of the water coming from the spring
    B) by how the water from the spring comes to the grounds surface
    (this multiple choice question has been scrambled)
  11. When placing an impoundment box over a spring to provide for water collection, how is the spring opening prepared?
    A) with a short section of galvanized or polyethylene culvert over the opening to provide a collection point
    B)with as little disturbance as possible to the opening
    C) by removing as much rock and gravel as possible to clean the spring opening
    D) by removing organic matter from around the opening and excavating the opening
    B)with as little disturbance as possible to the opening
    (this multiple choice question has been scrambled)
  12. What factors influence water's ability to dissolve soluble material?
    A) solubility of material, time of contact, pH of the water, speed of percolation
    B) pH, acidity, alkalinity
    C) pressure of the water, dissolved gases in the water, speed of percolation
    D) chemicals it contacts, bacteria it carries, hardness of the water
    A) solubility of material, time of contact, pH of the water, speed of percolation
    (this multiple choice question has been scrambled)
  13. How does a well screen filter material out of water coming from an unconsolidated aquifer?
    A) The screen relies on bridging of larger material near the screen to filter finer material.
    B) Slots in screens are meant to filter particles large enough to cause damage to the impeller and diffuser of  a pump
    C) The slots in the screen filter all sizes of material contained in the aquifer.
    D) There is enough open area in a screen to prevent material from being forced to a pump through the screen when the pump is running.
    A) The screen relies on bridging of larger material near the screen to filter finer material.
    (this multiple choice question has been scrambled)
  14. What is well development?
    A) cleaning a well that has been in use for some time to restore its yield.
    B) a driller working a formation to increase the yield available from the aquifer
    C) the process by which a driller with a rig constructs water wells
    D) the cleaning of an aquifer by a drill rig to ensure the well water is as clean as possible
    D) the cleaning of an aquifer by a drill rig to ensure the well water is as clean as possible
    (this multiple choice question has been scrambled)
  15. How are wells generally sorted as to their type?
    A) by their intended use
    B) by their size
    C) by the type of equipment that was used to make them
    D) by the depth to which they are made
    C) by the type of equipment that was used to make them
    (this multiple choice question has been scrambled)

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