7-Ops-5.1 Water supply Flashcards
According to the BFES operations Manual, What is the primary characteristic of a forward hose lay?
a) Hose deployed from the incident to the water source
b) Hose deployed from the water source to the incident
c) Hose dropped at a certain point for relay operation
d) Hose dragged by firefighters towards the hydrant
B
In a forward hose lay, hose is deployed from the water source to the incident. Deploying hose for a forward lay consists of stopping the apparatus at the hydrant and allowing a firefighter to leave the apparatus, gather the necessary equipment and connect to the hydrant while the apparatus proceeds to the fire. This method has its disadvantages, specifically when flow rates increase due to multiple hand lines or master stream operations. The further the distance from the hydrant, the more friction loss becomes an issue in the supply line, as flow rates increase.
According to the BFES operations Manual, In a forward hose lay, where is the apparatus stopped for connection to the hydrant?
a) At the incident scene
b) At a predetermined point
c) At the water source
d) At the apparatus bay
C
In a forward hose lay, hose is deployed from the water source to the incident. Deploying hose for a forward lay consists of stopping the apparatus at the hydrant and allowing a firefighter to leave the apparatus, gather the necessary equipment and connect to the hydrant while the apparatus proceeds to the fire. This method has its disadvantages, specifically when flow rates increase due to multiple hand lines or master stream operations. The further the distance from the hydrant, the more friction loss becomes an issue in the supply line, as flow rates increase.
According to the BFES operations Manual, What disadvantage is associated with a forward hose lay when flow rates increase?
a) Decreased friction loss
b) Increased ease of deployment
c) Friction loss becomes a significant issue
d) Reduced need for additional hand lines
C
In a forward hose lay, hose is deployed from the water source to the incident. Deploying hose for a forward lay consists of stopping the apparatus at the hydrant and allowing a firefighter to leave the apparatus, gather the necessary equipment and connect to the hydrant while the apparatus proceeds to the fire. This method has its disadvantages, specifically when flow rates increase due to multiple hand lines or master stream operations. The further the distance from the hydrant, the more friction loss becomes an issue in the supply line, as flow rates increase.
According to the BFES operations Manual, In a forward lay, why might friction loss become a problem as the distance from the hydrant increases?
a) Decreased flow rates
b) Increased hose diameter
c) Increased flow rates
d) Shorter hose lengths
C
In a forward hose lay, hose is deployed from the water source to the incident. Deploying hose for a forward lay consists of stopping the apparatus at the hydrant and allowing a firefighter to leave the apparatus, gather the necessary equipment and connect to the hydrant while the apparatus proceeds to the fire. This method has its disadvantages, specifically when flow rates increase due to multiple hand lines or master stream operations. The further the distance from the hydrant, the more friction loss becomes an issue in the supply line, as flow rates increase.
According to the BFES operations Manual, What is the main benefit of a reverse hose lay?
a) Increased friction loss
b) Easier connection to the hydrant
c) More efficient relay operations
d) Decreased friction loss from hydrant to apparatus
D
In a reverse hose lay, hose is deployed from the incident scene to the water source. Firefighters remove tools and equipment, including attack hose lines, from the apparatus before it proceeds to the water source. The reverse lay allows the pump operator to secure their own water source, freeing up personnel for initial fire attack. The reverse lay is also beneficial as it decreases friction loss from the hydrant to the apparatus and is easier to connect multiple supply lines from the hydrant to the apparatus intakes.
According to the BFES operations Manual, In a reverse hose lay, when are tools and equipment removed from the apparatus?
a) Before it proceeds to the water source
b) After securing the water source
c) During initial fire attack
d) After reaching the incident scene
A
In a reverse hose lay, hose is deployed from the incident scene to the water source. Firefighters remove tools and equipment, including attack hose lines, from the apparatus before it proceeds to the water source. The reverse lay allows the pump operator to secure their own water source, freeing up personnel for initial fire attack. The reverse lay is also beneficial as it decreases friction loss from the hydrant to the apparatus and is easier to connect multiple supply lines from the hydrant to the apparatus intakes.
According to the BFES operations Manual, Why is a reverse hose lay advantageous for the pump operator?
a) It increases friction loss
b) It allows for securing the water source independently
c) It reduces the need for relay operations
d) It hinders multiple supply line connections
B
In a reverse hose lay, hose is deployed from the incident scene to the water source. Firefighters remove tools and equipment, including attack hose lines, from the apparatus before it proceeds to the water source. The reverse lay allows the pump operator to secure their own water source, freeing up personnel for initial fire attack. The reverse lay is also beneficial as it decreases friction loss from the hydrant to the apparatus and is easier to connect multiple supply lines from the hydrant to the apparatus intakes.
According to the BFES operations Manual, When is a split hose lay commonly used?
a) In reverse hose lays
b) On dead-end streets
c) During static hose lays
d) During initial fire attack
B
In a split hose lay, supply hose is dropped by an apparatus at a certain point and is connected to by another apparatus. Ultimately, water is supplied to the initial apparatus via a relay operation. This hose lay is commonly used on dead end streets, when entering industrial/commercial complexes, that have a private water supply, or when long access roads/driveways make dragging hose back to a water source not practical.
According to the BFES operations Manual, What is the purpose of a split hose lay?
a) To connect multiple hand lines
b) To secure water supply independently
c) To decrease friction loss
d) To relay water to the initial apparatus
D
In a split hose lay, supply hose is dropped by an apparatus at a certain point and is connected to by another apparatus. Ultimately, water is supplied to the initial apparatus via a relay operation. This hose lay is commonly used on dead end streets, when entering industrial/commercial complexes, that have a private water supply, or when long access roads/driveways make dragging hose back to a water source not practical.
According to the BFES operations Manual, In a static hose lay, where is the supply hose dragged by a firefighter?
a) Towards the incident scene
b) Towards the apparatus bay
c) Towards the water source
d) Towards the hydrant
D
In a static hose lay, the apparatus arrives at the fire scene and supply hose is dragged by a firefighter from the apparatus towards the hydrant. This method has its disadvantages due to distances from the hydrant, specifically when flow rates increase. Furthermore, as the distance increases, more firefighters are required to effectively secure a water supply, depleting on scene resources that could be used to assist in the performance of other mission-critical tasks.
According to the BFES operations Manual, What is a disadvantage of a static hose lay concerning distance from the hydrant?
a) Increased efficiency
b) Decreased need for firefighters
c) More effective water supply
d) Friction loss becomes an issue
D
In a static hose lay, the apparatus arrives at the fire scene and supply hose is dragged by a firefighter from the apparatus towards the hydrant. This method has its disadvantages due to distances from the hydrant, specifically when flow rates increase. Furthermore, as the distance increases, more firefighters are required to effectively secure a water supply, depleting on scene resources that could be used to assist in the performance of other mission-critical tasks.
According to the BFES operations Manual, What task is performed by a firefighter in a forward hose lay at the hydrant?
a) Securing the water source
b) Connecting to the hydrant
c) Initiating initial fire attack
d) Removing tools and equipment
B
In a forward hose lay, hose is deployed from the water source to the incident. Deploying hose for a forward lay consists of stopping the apparatus at the hydrant and allowing a firefighter to leave the apparatus, gather the necessary equipment and connect to the hydrant while the apparatus proceeds to the fire. This method has its disadvantages, specifically when flow rates increase due to multiple hand lines or master stream operations. The further the distance from the hydrant, the more friction loss becomes an issue in the supply line, as flow rates increase.
According to the BFES operations Manual, What makes the reverse hose lay easier to connect multiple supply lines?
a) Decreased friction loss
b) Proximity to the incident scene
c) Removing tools and equipment
d) Distance from the water source
D
In a reverse hose lay, hose is deployed from the incident scene to the water source. Firefighters remove tools and equipment, including attack hose lines, from the apparatus before it proceeds to the water source. The reverse lay allows the pump operator to secure their own water source, freeing up personnel for initial fire attack. The reverse lay is also beneficial as it decreases friction loss from the hydrant to the apparatus and is easier to connect multiple supply lines from the hydrant to the apparatus intakes.
According to the BFES operations Manual, What advantage does a reverse hose lay offer in terms of friction loss?
a) Increased friction loss
b) Decreased friction loss from hydrant to apparatus
c) Friction loss is not affected
d) Friction loss increases with distance
B
In a reverse hose lay, hose is deployed from the incident scene to the water source. Firefighters remove tools and equipment, including attack hose lines, from the apparatus before it proceeds to the water source. The reverse lay allows the pump operator to secure their own water source, freeing up personnel for initial fire attack. The reverse lay is also beneficial as it decreases friction loss from the hydrant to the apparatus and is easier to connect multiple supply lines from the hydrant to the apparatus intakes.
