Water Supply Exam Chapter 16 -Solved
A dry hydrant provides access to a - ANSWER-static water source
A hose adaptor connects two hose sections of - ANSWER-equal diameter but differing
threads
A pilot guage is used to determine __ pressure - ANSWER-flow
A short fold in a supply hose load that prevents a coupling from flipping around when
the hose is being laid out is a - ANSWER-Dutchman
A soft suction hose is used to connect a pumper to a - ANSWER-Hydrant
A typical number fire engine carries __ of supply hose - ANSWER-750 feet to 1250ft
(228 to 380 m)
According to the NFPA, what is the minimum distance between the center of a fire
hydrant outlet and the finished grade of the ground around the hydrant - ANSWER-18"
(45cm)
An engine lays hose from a water source to the fire scene in a __ lay - ANSWER-
forward
Another term for head pressure is __ pressure - ANSWER-Elevation
Couplings are tightened and loosened with a __ wrench - ANSWER-spanner
During annual testing, attack hose is tested at what pressure - ANSWER-300 psi
(2068kPa)
During annual testing, supply hose is tested at __ psi (1379 kPa) - ANSWER-200
During hose testing, pressure is maintained for __ minutes - ANSWER-5
Fire fighters may need to hold on to the __ while filling a self-expanding portable tank -
ANSWER-collar
Fire hydrants should be inspected at least once every __ months - ANSWER-12
Hose that is at least 3 1/2" (88mm) in diameter is considered __ diameter - ANSWER-
large
How can you determine that a dry-barrel hydrant is still draining - ANSWER-place a
hand over an outlet and feel for suction
, How close must a fire engine get to a static water source to be able directly from it
through hard suction hose - ANSWER-20 ft (6m)
How does a doughnut hose roll differ from a straight hose roll - ANSWER-Both
couplings are on th outside
How many gallons per minute can a tanker shuttle operation deliver without interruption
- ANSWER-several hundred
In a __ lay, the hose is laid out from the fire to the hydrant - ANSWER-reverse
In a jacketed fire hose, which function does the outer jacket serve - ANSWER-It adds
strength that allows the hose to withstand water pressure
In a well-designed water distribution system, which type of pattern do the water mains
follow - ANSWER-Grid
In general , mobile water supply apparatus carry - ANSWER-1000 to 3500 gal (3785 to
13249 L)
Portable pumps can deliver a maximum of - ANSWER-500 gpm (1893 lpm)
Pressure in a water distribution system during average consumption is __ pressure -
ANSWER-normal operating
The end of the hose bed closet to the apparatus cab is the - ANSWER-front
The flow or quantity of water moving is measured in - ANSWER-gallons per minute
(liters per minute)
The most likely cause of leaking between two joined couplings is a damaged or missing
- ANSWER-Swivel gasket
The NFPA recommends color-coding hydrants to indicate - ANSWER-available flow
The pipes that deliver water form the treatment facility for distribution are - ANSWER-
mains
The pipes that deliver water to users and hydrants on individual streets are - ANSWER-
distributors
The pressure in a system when no water is flowing is called __ pressure - ANSWER-
static
A dry hydrant provides access to a - ANSWER-static water source
A hose adaptor connects two hose sections of - ANSWER-equal diameter but differing
threads
A pilot guage is used to determine __ pressure - ANSWER-flow
A short fold in a supply hose load that prevents a coupling from flipping around when
the hose is being laid out is a - ANSWER-Dutchman
A soft suction hose is used to connect a pumper to a - ANSWER-Hydrant
A typical number fire engine carries __ of supply hose - ANSWER-750 feet to 1250ft
(228 to 380 m)
According to the NFPA, what is the minimum distance between the center of a fire
hydrant outlet and the finished grade of the ground around the hydrant - ANSWER-18"
(45cm)
An engine lays hose from a water source to the fire scene in a __ lay - ANSWER-
forward
Another term for head pressure is __ pressure - ANSWER-Elevation
Couplings are tightened and loosened with a __ wrench - ANSWER-spanner
During annual testing, attack hose is tested at what pressure - ANSWER-300 psi
(2068kPa)
During annual testing, supply hose is tested at __ psi (1379 kPa) - ANSWER-200
During hose testing, pressure is maintained for __ minutes - ANSWER-5
Fire fighters may need to hold on to the __ while filling a self-expanding portable tank -
ANSWER-collar
Fire hydrants should be inspected at least once every __ months - ANSWER-12
Hose that is at least 3 1/2" (88mm) in diameter is considered __ diameter - ANSWER-
large
How can you determine that a dry-barrel hydrant is still draining - ANSWER-place a
hand over an outlet and feel for suction
, How close must a fire engine get to a static water source to be able directly from it
through hard suction hose - ANSWER-20 ft (6m)
How does a doughnut hose roll differ from a straight hose roll - ANSWER-Both
couplings are on th outside
How many gallons per minute can a tanker shuttle operation deliver without interruption
- ANSWER-several hundred
In a __ lay, the hose is laid out from the fire to the hydrant - ANSWER-reverse
In a jacketed fire hose, which function does the outer jacket serve - ANSWER-It adds
strength that allows the hose to withstand water pressure
In a well-designed water distribution system, which type of pattern do the water mains
follow - ANSWER-Grid
In general , mobile water supply apparatus carry - ANSWER-1000 to 3500 gal (3785 to
13249 L)
Portable pumps can deliver a maximum of - ANSWER-500 gpm (1893 lpm)
Pressure in a water distribution system during average consumption is __ pressure -
ANSWER-normal operating
The end of the hose bed closet to the apparatus cab is the - ANSWER-front
The flow or quantity of water moving is measured in - ANSWER-gallons per minute
(liters per minute)
The most likely cause of leaking between two joined couplings is a damaged or missing
- ANSWER-Swivel gasket
The NFPA recommends color-coding hydrants to indicate - ANSWER-available flow
The pipes that deliver water form the treatment facility for distribution are - ANSWER-
mains
The pipes that deliver water to users and hydrants on individual streets are - ANSWER-
distributors
The pressure in a system when no water is flowing is called __ pressure - ANSWER-
static
