Upgrade to remove ads
Only $2.99/month

LLPSD FF1 Chapter 16

Terms in this set (81)

The pressure remaining in a water distribution system when water is flowing is the _____ pressure.
a. residual
b. flow
c. operating
d. static
a. residual
The pressure in a system when no water is flowing is called ____ pressure.
a. flow
b. operating
c. residual
d. static
d. static
What is the purpose of the Higbee indicators?
a. make hose coupling easier and faster
b. help disoriented fire fighters find their way out of a building
c. indicate when the hose may be pulling out of the coupling
d. identify the thread standard type
a. make hose coupling easier and faster
The pipes that deliver water from the treatment facility for distribution are _________.
a. trunks
b. mains
c. distributors
d. secondaries
b. mains
Which pipe pattern supplies water to hydrants from more than one direction?
a. engineered
b. parallel
c. grid
d. duplex
c. grid
According to the NFPA, what is the minimum distance between the center of the fire hydrant outlet and the finished grade of the ground around the hydrant?
a. 30"
b. 12"
c. 18"
d. 24"
c. 18"
Which tool is used to protect a hose line that is being hoisted over a sharp edge?
a. hose roller
b. edge protector
c. hose ramp
d. hose pulley
a. hose roller
Another term for head pressure is ______ pressure.
a. residual
b. elevation
c. flow
d. static
b. elevation
What is the minimum recommended pressure for water coming from a fire hydrant?
a. 30 psi
b. 40 psi
c. 50 psi
d. 20 psi
b. elevation
In a well-designed water distribution system, which type of pattern do the water mains follow?
a. loop
b. branched
c. parallel
d. grid
d. grid
The two-fire-fighter stiff-arm method is used to _____.
a. reload LDH into a hose bed
b. make hard suction hose connections
c. uncouple hose
d. advance a charged line
c. uncouple hose
Which coupling goes on the inside of a straight hose roll?
a. either
b. both couplings are attached
c. female
d. male
d. male
In general, mobile water supply apparatus carry ______.
a. 1ooo to 3500 gal.
b. 2000 to 5000 gal.
c. 3000 to 6000 gal.
d. 1000 or fewer gal.
a. 1ooo to 3500 gal.
Which valve is opened or closed by rotating a handle a quarter turn?
a. Siamese
b. Butterfly
c. Slide
d. Gate
b. Butterfly
What is used to connect hose couplings with dissimilar threads?
a. Siamese
b. Adaptor
c. Fitting
d. Hose jacket
b. Adaptor
Which term means the amount of energy in a body or stream of water?
a. flow
b. volume
c. watts
d. pressure
d. pressure
A Pitot gauge is used to determine ________ pressure.
a. flow
b. operating
c. residual
d. static
a. flow
What is the fastest way for a mobile water supply apparatus to offload water into a portable tank?
a. use the dump valve
b. connect to the drafting pumper
c. use large-diameter hose
d. engage the tender's auxiliary pump
a. use the dump valve
What is the last step in rolling a straight hose roll?
a. tie the slip knot
b. create a fold to protect the outer coupling
c. connect the couplings together
d. use a foot to align protruding hose
d. use a foot to align protruding hose
Which pressure must be measured to calculate the quantity of water flowing through a hydrant discharge?
a. operating
b. flow
c. residual
d. head
b. flow
A dry hydrant provides access to a ________.
a. portable water tank
b. municipal water system
c. cistern or well
d. static water source
d. static water source
Which feature of hose couplings is used to aid in the coupling and uncoupling of hose?
a. lug
b. shank
c. spanner
d. Higbee cut
a. lug
Fire fighters may need to hold on to the ____ while filling a self-expanding portable tank.
a. hose
b. frame
c. collar
d. rope
c. collar
The volume of water that is being moved through a pipe or hose is termed the ______.
a. stream
b. flow
c. pressure
d. throughout
b. flow
What is a common use for a hose clamp?
a. allow a hydrant to be opened before the supply line is connected to the pump intake
b. regulate pressure/volume in a single hose
c. control a burst section of hose line without interrupting water flow
d. allow for a quick-connect of an attack line to a pumper when the threads do not match
a. allow a hydrant to be opened before the supply line is connected to the pump intake
What is the decrease in pressure that occurs as water moves through a hose?
a. water hammer
b. residual pressure
c. friction loss
d. kinetic energy
c. friction loss
Which of the following is one of the three factors that determine friction loss?
a. water source
b. hose diameter
c. atmospheric pressure
d. ambient temperature
b. hose diameter
When charging a supply line at a hydrant, the fire fighter should ______.
a. check that the hydrant strap is secure
b. fully open the stem and then back it off one full turn
c. avoid standing between the hose line and the hydrant
d. place the hose clamp before opening the hydrant
c. avoid standing between the hose line and the hydrant
What is the correct tool to tighten a hard suction hose connection?
a. rubber mallet
b. spanner
c. hose wrench
d. strap wrench
a. rubber mallet
What is the function of lugs found on couplings?
a. aid in coupling and uncoupling hose
b. help the coupling slide over obstructions
c. align the threads during coupling
d. strengthen the coupling
a. aid in coupling and uncoupling hose
What is the realistic minimum usable residual pressure from a water distribution system for fire fighting operations?
a. 30 psi
b. 20 psi
c. 0 psi
d. 40 psi
b. 20 psi
What is the color code for a hydrant flowing 1000 to 1499 gpm (3785 to 5674 lpm)?
a. light blue
b. yellow
c. green
d. orange
c. Green
The NFPA recommends color-coding hydrants to indicate _______.
a. the water source
b. the most recent flow test
c. available flow
d. available pressure
c. available flow
How close must a fire engine get to a static water source to be able to draft directly from it through hard suction hose?
a. 10 ft.
b. 20 ft.
c. 30 ft.
d. a distance equal to the total length of the available hard suction hose minus 10 ft.
b. 20 ft.
Which description best fits a hose jacket device?
a. split metal cylinder
b. soft rubber sheet
c. stiff canvas patch
d. wound plastic coil
a. split metal cylinder
When water is motionless, which kind of energy does it have?
a. static
b. residual
c. kinetic
d. potential
d. potential
A hose adaptor connects two hose sections of ______.
a. equal diameter and similar threads
b. equal diameter but differing threads
c. unequal diameter but similar threads
d. unequal diameter and differing threads
b. equal diameter but differing threads
How does a doughnut hose roll differ from a straight hose roll?
a. the female coupling is on the outside
b. both couplings are in the middle
c. the two couplings are connected
d. both couplings are on the outside
d. both couplings are on the outside
How can you determine that a dry barrel hydrant is still draining?
a. place a hand on the stem nut and feel for vibration
b. place a hand over an outlet and feel for suction
c. listen carefully for a hissing sound
d. look for a continuing trickle from the discharge outlet
b. place a hand over an outlet and feel for suction
What makes a water thief different from a wye is the addition of _____________.
a. clapper valves
b. ball valves
c. a 2 1/2" outlet
d. a second inlet
c. a 2 1/2" outlet
What is used to connect individual sections of hose together to extend their length?
a. Higbee
b. Appliance
c. Rocker
d. Coupling
d. Coupling
What is used to carry a self-locking twin doughnut hose roll?
a. a loop of hose
b. hose strap
c. rope
d. webbing
a. a loop of hose
How many gallons per minute can a tanker shuttle operation deliver without interruption?
a. a few hundred
b. a few thousand
c. zero
d. several hundred
d. several hundred
What is the color code for a hydrant flowing 500 to 999 gpm (1890 to 3780 lpm)?
a. green
b. orange
c. light blue
d. red
b. orange
The end of the hose bed closet to the apparatus cab is the _____.
a. back
b. partition
c. front
d. bulkhead
c. front
Hose that is at least 3 1/2" (88 mm) in diameter is considered ______ diameter.
a. large
b. small
c. medium
d. master
a. large
The pipes that deliver water to users and hydrants on individual streets are ______.
a. cross mains
b. service lines
c. secondaries
d. distributors
d. distributors
Which hose load has the hose up on the edge and placed around the perimeter of the hose bed in a U shape?
a. perimeter
b. split
c. horseshoe
d. U
c. horseshoe
Which hose appliance combines tow hose lines into one?
a. Siamese
b. Manifold
c. Reducer
d. Wye
a. Siamese
What is the maximum capacity of typical portable water tanks?
a. 3500 gal.
b. 5000 gal.
c. 2000 gal.
d. 1500 gal.
b. 5000 gal.
Which type of hose roll is used to store hose on a storage rack?
a. doughnut
b. straight
c. twin
d. flat
b. straight
A short fold in a supply hose load that prevents a coupling from flipping around when the hose is being laid out is a ______.
a. bowtie
b. flip
c. Dutchman
d. reverse
c. Dutchman
A soft suction hose is used to connect a pumper to a _____.
a. hydrant
b. standpipe/FDC
c. master stream device
d. static water supply
a. hydrant
What is hard suction hose most commonly used for?
a. relay pumping
b. filling a portable tank
c. transferring water from a pressurized source to a pump
d. drafting from a static water source
d. drafting from a static water source
A typical number fire engine carries ____ of supply hose.
a. 750 to 1250 ft.
b. 500 to 750 ft.
c. 1000 to 1500 ft.
d. 1500 to 2000 ft.
a. 750 to 1250 ft.
What should be used to clean fire hoses?
a. Class A foam
b. a dilute bleach solution
c. mild detergent
d. TSP (trisodium phosphate)
c. mild detergent
Which type of hose coupling does not have male or female ends?
a. snap-tite
b. storz
c. naval
d. ramos
b. storz
Which term means the properties of energy, pressure, and water flow as related to fire suppression?
a. fire flow
b. hydraulics
c. hydrodynamics
d. friction loss
b. hydraulics
Which supply line load is capable of laying both single and dual supply lines?
a. horseshoe
b. twin
c. Detroit
d. split bed
d. split bed
An engine lays hose from a water source to fire scene in a _____ lay.
a. forward
b. basic
c. standard
d. single
a. forward
What is the color code for a hydrant flowing less than 500 gpm (1890 lpm)?
a. orange
b. white
c. red
d. yellow
c. red
Where are dry-barrel hydrants typically used?
a. cold climates
b. static water supplies
c. areas subject to frequent vandalism
d. dedicated fire protection water system
a. cold climates
Which type of adaptor is used to connect two female couplings to each other?
a. double male
b. wye
c. Siamese
d. double female
a. double male
What is the color code for a hydrant flowing 1500 gpm (5678 lpm) or more?
a. light blue
b. green
c. orange
d. white
a. light blue
The flow or quantity of water moving is measured in _____.
a. joules
b. cubic feet per minute
c. gallons per minute
d. pounds per square inch
c. gallons per minute
What is the term for the large discharge opening on a fire hydrant?
a. main
b. deluge
c. steamer
d. primary
c. steamer
When should the fire fighter at the hydrant charge the supply line?
a. after placing the hose clamp
b. after the supply line is connected to the pump intake
c. as soon as it is connected to the hydrant
d. upon receiving a signal from the driver/operator
d. upon receiving a signal from the driver/operator
Fire hydrants should be inspected at least once every _____ months.
a. 6
b. 24
c. 18
d. 12
d. 12
Portable pumps can deliver a maximum of _____.
a. 750 gpm
b. 500 gpm
c. 250 gpm
d. 1000 gpm
b. 500 gpm
When referring to hose, what does the "L" stand for "LDH"?
a. light
b. low
c. large
d. limited
c. large
What is a function of a hose liner?
a. resist mechanical damage
b. protect against thermal damage
c. reduce friction loss
d. withstand water pressure
c. reduce friction loss
In a jacketed fire hose, which function does the outer jacket serve?
a. it reduces friction loss
b. it resists kinking
c. it adds strength that allows the hose to withstand water pressure
d. it is the waterproof layer of the hose
c. it adds strength that allows the hose to withstand water pressure
Which size of coupling are the outlets on most fire hydrants sized to fit?
a. 4"
b. 2 1/2"
c. 3"
d. 3 1/2"
b. 2 1/2"
Couplings are tightened and loosened with a _____ wrench.
a. hose
b. hydrant
c. spanner
d. lug
c. spanner
In a _____ lay, the hose is laid out from the fire to the hydrant.
a. relay
b. reverse
c. defensive
d. hydrant
b. reverse
Pressure in a water distribution system during average consumption is ______ pressure.
a. residual
b. static
c. mean
d. normal operating
d. normal operating
The most likely cause of leaking between two joining couplings is a damaged or missing _______.
a. shank gasket
b. compression gasket
c. expansion ring
d. swivel gasket
d. swivel gasket
What should be done to avoid water hammer?
a. always maintain a minimum residual pressure of 20 psi
b. purge air from the line before opening a valve or nozzle
c. open and close all valves slowly
d. never connect a hard suction hose to a pressurized water supply
c. open and close all valves slowly
Which device splits one hose stream into two hose streams?
a. Siamese
b. Water thief
c. Wye
d. Splitter
c. Wye
Which item is used to attached a smaller hose to larger one?
a. adaptor
b. gate
c. fitting
d. reducer
d. reducer
Which hose load has the hose up on its edge and laid side-to-side in the hose bed?
a. fan-fold
b. edge
c. accordion
d. combination
c. accordion
THIS SET IS OFTEN IN FOLDERS WITH...