HR OPS GROUND FLOOR OPS 67-81

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What does the FDC pump operator need to do to ensure the appropriate amount of pressure makes it past the PRVs on the fire floor?

Rely on the building's internal clappers to deliver water into the building

Increase pressure until a residual pressure drop is seen on the master intake gauge

Ignore the flow meter portion of the gauge if it is not working

Determine the pressure needed at the top floor and supply that pressure to the building (correct)

What action indicates to the pump operator that they have overcome the clapper valve and have started moving water into the building?

Seeing flow in the red numbers on the outlet gauge (correct)

Seeing a residual pressure drop on the master intake gauge

Connecting a large gated wye to the standpipe outlet

Using an elevated waterway for supplying water

What is the purpose of using a first-floor standpipe outlet as an inlet if the FDC is damaged or missing?

To allow water to flow into the standpipe even if it has a PRV

To use an elevated waterway for supplying water

To connect a large gated wye to the standpipe outlet

To deliver water to the building when alternate methods are needed (correct)

How can firefighters differentiate between a test head discharge and an FDC?

By looking at the threads - test head discharge has exposed male threads, while an FDC has exposed female threads Signup and view all the answers

When is an elevated waterway used as an alternate method for delivering water to the building?

When no victims are present or expected Signup and view all the answers

What should the first arriving medic crew do if no victims are present or expected?

Bring all EMS equipment to the lobby area Signup and view all the answers

What should be set up at ground level when the first EMS supervisor arrives?

A separate triage and treatment area Signup and view all the answers

What does the first arriving battalion chief do at a high-rise incident?

Takes Fixed Command of the incident Signup and view all the answers

What is the purpose of Phase I in elevator operation during a fire emergency?

To recall all the cars to the lobby area or the floor of egress Signup and view all the answers

During Phase II operation in an elevator during a fire emergency, what does holding the door open button until the doors are completely open indicate?

That firefighters are still in control of the elevator and Phase II is working as designed Signup and view all the answers

What should firefighters do if the Phase II firefighter helmet light in the car is flashing during elevator operation in a fire emergency?

Do not use the elevator if this occurs Signup and view all the answers

What is the recommended maximum number of firefighters to be accommodated in an elevator car during a fire emergency?

6 firefighters Signup and view all the answers

What should be done to ensure Phase I is activated and recall the car to the lobby for next arriving crews to use?

Use the 'car hold' feature to keep the car and the keys on the floor firefighters exited on Signup and view all the answers

Why should firefighters back into the elevator cars when loading during a fire emergency?

To keep members from having to spin around in tight quarters while carrying hose packs and hand tools Signup and view all the answers

What is the purpose of stopping at every five floors during elevator operation in a fire emergency?

To repeat door checks and ensure that firefighters are still in control of the elevator Signup and view all the answers

What should be done if there is no firefighter service or recall function for an elevator during a fire emergency?

Do not use it for firefighting operations Signup and view all the answers

Why should elevators that do not service the fire floor be chosen if possible during firefighting operations?

To minimize chances of malfunctioning and going directly to the fire floor Signup and view all the answers

What is a critical job assigned to Lobby Control Group during firefighting operations?

Establishing lobby accountability and collecting one passport from each crew entering the building Signup and view all the answers

Why is it important for Group supervisors to get a set of master keys during firefighting operations?

To maintain and control all building systems when required Signup and view all the answers

What is the responsibility of the ladder driver upon arrival at the scene?

Set up the aerial for fire attack/rescue if the fire is in reach Signup and view all the answers

What should be done if the swivel of the FDC is frozen in place?

Use a double male attached to a double female to create a new swivel Signup and view all the answers

What pressure load sharing mechanism is used between two CFD engines at the FDC?

Series pumping Signup and view all the answers

What is the purpose of removing all the plugs from the FDC prior to pumping water?

To ensure all inlets receive water without pressure buildup Signup and view all the answers

When should the FDC engine increase pump pressure according to the text?

Once Fire Attack Group crews reach the floor below the fire Signup and view all the answers

What is the generic pump discharge pressure required for a dry system according to the text?

$elevation + appliances$ Signup and view all the answers

What should be done if a member from the Lobby Control Group needs to check if the pump is running during high-rise fire operations?

Send a member from Accountability and Crew Assignments Group Signup and view all the answers

What should be done if PRVs on standpipes are present in a building and the fire pump fails?

$Supplying the same pressure that the building fire pump was discharging should be adequate for this$ Signup and view all the answers

What kind of buildings require $100 PSI residual pressure at the most remote outlet from the pump while flowing 500 GPM?

$Post-1993 buildings$ Signup and view all the answers

What is used to remove debris inside the FDC according to the text?

$McGill forceps or needle nose pliers$ Signup and view all the answers

'If firefighters deliver water to two inlets and later decide to supply additional FDC inlets, failing to remove all the plugs initially can cause what?'

$Pressure buildup on remaining plugs which can be dangerous or impossible to remove later$ Signup and view all the answers

According to the text, what is used by CFD engines for intake relief valve when pumping operations involve pressures above 180 PSI?

Pressure relief valve release to ground Signup and view all the answers

What is a drawback of the lobby command post?

The I/C cannot see the exterior of the building to size up progress Signup and view all the answers

What is the purpose of the Digital Vehicular Repeater System (DVRS) carried on Battalion Chief and SO-2 vehicles?

To boost radio signals and relay them to the nearest radio tower Signup and view all the answers

What does the Local Mode of DVRS function as?

A line-of-sight function like car-to-car communication Signup and view all the answers

Why are high-rise buildings more challenging for communication during a fire?

Radios may not work well due to the height and structure of the building Signup and view all the answers

What is one advantage of the exterior command post?

Allows visualization of the exterior of the building Signup and view all the answers

Which mode of DVRS is utilized to boost radio signals?

System Mode Signup and view all the answers

What is the main function of DVRS carried on Battalion Chief and SO-2 vehicles?

Boosting radio signals and relaying them to the nearest radio tower Signup and view all the answers

Why is it desirable to have an exterior command post?

To allow visualization of the exterior of the building Signup and view all the answers

What is the appropriate action for crews if the fire floor is within walking distance?

Use the stairs Signup and view all the answers

What is the responsibility of the FDC pump operator to ensure proper water pressure on the fire floor?

Open the clapper valve Signup and view all the answers

What should be done if the fire is out of walking distance and the elevators have firefighter service?

Use elevators with firefighter recall service Signup and view all the answers

What are the initial actions to be taken by the Fire Attack Group?

Gather near the elevators to be used Signup and view all the answers

What should crews do if elevators do not have firefighter recall service?