Suppression Best Practices

Question 1

Residential structures should be considered (1.) — and the interior conditions (2.) — until Primary Search(es) and Secondary Search(es) have proven otherwise.

Answer 1

1. occupied
2. survivable

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 2

We strive to reduce structure fire victims’ time and dose of exposure to heat and toxic gases. This is best achieved by coordinating (1.) —, (2.) — and (3.) —, simultaneously whenever possible.

Answer 2

1. Fire Control
2. Ventilation
3. Primary Search

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 3

The three water application techniques now being taught for interior suppression are (1.) — (moving forward while simultaneously flowing water), (2.) — (water flow from a fixed position which is shut down and advanced to a new fixed position before flow is resumed) and (3.) — (advance a non-flowing nozzle to the main body of fire and apply water directly to its seat, minimizing water damage).

Answer 3

1. Flow-and-Move (AKA, “Push” fire attack)
2. Hit-and-Move
3. Move

“Flow-and-Move” and “Hit-and-Move” are considered “heavy-handed water application techniques” useful for well-involved fires, while “Move” is considered a “limited water application technique” useful for fires in the incipient and early growth stages.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 4

According to UL research, (1.) — streams are not recommended for initial Knockdown on post-Flashover, ventilation-limited fires, due to their relatively poor ability to (2.) — as well as their relatively high (3.) — in comparison to (4.) — or (5.) — hose streams.

Answer 4

1. fog
2. absorb heat from surfaces (water droplet size is too small)
3. air entrainment
4. straight
5. solid-bore

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 5

Moving the nozzole in a(n) “(1.) — Pattern” is recommended by the UL during Flow-and-Move operations while advancing towards the fire compartment.

Answer 5

1. O

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 6

Moving the nozzole in a(n) “(1.) — Pattern” is recommended by the UL during Flow-and-Move operations while advancing towards the fire compartment (e.g., while moving down a hallway towards a bedroom fire). Once able to direct the hose stream into the fire compartment, this pattern should be continued, first directed towards the (2.) — in order to optimize water mapping.

Answer 6

1. O
2. ceiling (i.e., at a steep angle)

Once the fire has been darkened down, the stream can be brought down onto the lower burning fuels.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 7

Moving the nozzle (straight stream or smooth bore) in an “O Pattern” is recommended by the UL FSRI during Flow-and-Move (AKA “Push” fire attack) operations due to it’s combined ability to (1.) — all surfaces as well as (2.) — off the space ahead of the crew. Enough air is (3.) — with this technique to push combustion products away from the crew (while bringing in cooler air behind them), but not so much as to push the fire into uninvolved spaces.

Answer 7

1. coat
2. seal

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 8

What water application pattern is recommended for use during Hit-and-Move operations?

Answer 8

1. Start at a steep angle directly overhead and move the hose stream back-and-forth in an upside-down U Pattern as you direct the stream further and further away. (Then cease flowing and move forward to the last point cooled.)

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 9

The (1.) — is the foundational grip for 1-3/4” and 2-1/2” hose. This grip is often utilized for “Flow-and-Move” as well as Hit-and-Move operations. This grip can be used in both the (2.) — and (3.) — positions.

(4.) Where should the hands be placed when using this grip?

(5.)When using this grip in the kneeling position, which knee should be on the ground?

Answer 9

1. Hip Grip
2. Standing
3. Kneeling
4. One hand should be placed immediately behind the nozzle, and the other should pin the hose to the hip.
5. The rear knee (hip side) should be on the ground. The front foot should be on the ground with the knee raised.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 10

The (1.) — is an alternative grip for use in Hit-and-Move or Flow-and-Move operations.

(2.) Describe this grip, including knee placement.

Answer 10

1. Lock-Off
2. The front hand is placed on the hose immediately behind the nozzle coupling, and the rear hand closely behind the front hand. The hose is pinched by the rear elbow against the body, above the bend of the rear thigh at the hip. The front knee is on the ground, and the rear knee raised with the foot down.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 11

The (1.) -(grip)- is used for stationary water application. This grip may also be used for the (2.) -(movement)- version of Hit-and-Move, primarily when utilizing 2-1/2” hose.

Answer 11

1. Clamp
2. Clamp Slide

The Clamp Slide is not suitable for Flow-and-Move operations.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 12

(1.) “—“ is the job of a nozzleman’s back-up person when assistance is necessary to manage nozzle reaction, manage friction points and / or “preload” the hose for continuous advance.

(2.) Describe the position of a back-up person when performing this task.

Answer 12

1. Heeling the Line
2. The front hand should rest on the ground, with the arm on the opposite side of the hose from the body. The rear hand should grip the hose with the palm up, thumb facing toward the rear. The front knee should rest on the ground. The rear foot should rest on the ground with the knee raised. The rear arm should be supported by the medial rear leg.

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 13

Five common terms which should be understood during fire attack include:

(1.) — - a signal to move forward toward the seat of the fire.
(2.) — - a signal to stop foward movement.
(3.) — - a signal to Flow-and-Move, i.e., to begin a Push-type fire attack.
(4.) — - a signal to move up to the next friction point. This is commonly accompanied by a directional indicator, either “right” or “left”.
(5.) — - a signal that the nozzleman has access to the fire compartment and that the rest of the attack crew can exit the hosline to perform other duties as required.

Answer 13

1. Forward
2. Stop
3. Push
4. Bump Up
5. Peel Off

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 14

The (1.) — and (2.) — are techniques which allow for forward movement of a hoseline while using a Hip Grip during Flow-and-Move or Hit-and-Move operations.

Answer 14

1. Knee Shuffle
2. Knee Walk

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 15

The technique of moving forward by walking on your knees (typically a Flow and Move operation) is known as the (1.) —.

Answer 15

1. Knee Shuffle

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 16

The technique of moving forward by stepping forward with one foot from a kneeling position, dragging forward the knee which remains on the ground while simultaneously returning to a kneeling position (typically a Flow and Move operation) is known as the (1.) —.

Answer 16

1. Knee Walk

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024

Question 18

The technique of moving forward by stepping forward with one foot from a kneeling position, dragging forward the knee which remains on the ground while simultaneously returning to a kneeling position (typically a Flow and Move operation) is known as the (1.) —.

Answer 18

1. Knee Walk

“Interior Suppression” PowerPoint Video assigned on Vector Solutions, CPFR, 2024