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Chapter 16-Water Supply Questions and Answers 100% Solved
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Chapter 16-Water Supply
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Chapter 16-Water SupplyWhat is a water hose line good for? - answer Putting out the fire, defense against being
burned or driven out of a building.
when should a dependable water supply be established? – answer ASAP
Where do most rural residents get their water supply/? - answer wells or cisterns
List static water sources - answerrivers, streams, lakes, ponds, oceans, canals
swimming pools
How close must engines or water pumps be to a static water supply to be useful? -
answerwithin 20 feet
dry hydrants - answerAKA drafting hydrants provide quick and reliable access to static
water sources. it has a pipe with a strainer on one end and a connection for a hard
suction hose on the other end
NFPA 1142 - answerStandard on Water Supplies for Suburban and Rural Fife Fighting
What could a portable pump be used for? - answeran alternative means of accessing
water in areas that are inaccessible to fire apparatus
How much water can a portable pump deliver? - answer500 gpm
mobile water supply apparatus - answeraka tankers or water tenders, these trucks are
designed specifically to carry large volumes of water to rural areas. generally 1000-3500
gallons but sometimes up to 5000 gallons
portable tanks - answerthese tanks can be quickly set up on scene and can hold
between 600 and 5000 gallons. these need to be set up so multiple engines can access
them.
what is the primary advantage of using portable tank system? - answerSpeed and its
ability to expand rapidly. they enable the use of a dump valve which enables users to
offload up to 3000 gallons in a minute
tanker shuttle - answerthese can be used when a large water supply is needed to an
extended period of time from a fill site to fire site
, municipal water systems - answerthis system makes clean water available to people in
populated areas and provide water for fire protection
three main components of a municipal water system - answerwater source, treatment
plant, distribution system
where do municipal water systems draw water from and what do they depend on? -
answercan be wells, lakes, rivers, streams, reservoirs and it depends on the geographic
and hydrologic features in the area
water treatment faciity - answerplace where impurities are removed from the water and
all water in the system must be drinkable
what is used to kill bacteria from water supply? - answerUV radiation and other
chemicals
whats the range of water pressure at the delivery point? - answer20-80psi with 20psi
being the lowest recommended pressure at a hydrant
what do most water distribution systems rely on to provide adequate pressure? -
answerpumps, either directly or indirectly and sometimes gravity
How do most municipal systems reduce the risk of service interruption? - answerby
using multiple pumps and backup power supplies
gravity feed system - answerthe water source, treatment plant and storage facilities are
located on high ground and the end users live in lower lying areas and may not require
any pumps
elevated water storage tower - answerabove ground water storage tank thats designed
to maintain pressure on a water distribution center
primary feeders - answerthe largest pipes which carry the most amount of water to a
section of a town or city
secondary feeders - answersmaller diameter pipes that connect the primary pipes to the
distribution pipes
distributor - answercarry water to the users and hydrants along individual streets
what factors determine the size of the water mains? - answerthe amount of water
consumed during normal times and for fire protection in that area. most jurisdictions
specify the minimum size that can be installed
what type of construction for the design of water mains is popular and why? - answera
grid design because it allows the flow of water to a hydrant to come from two or more
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