TB 62 - High Rise Hose Systems

Question 1

What type of construction is the 2” high rise hose?

Answer 1

Single jacket nitrile rubber impregnated synthetic yarn as cord material

Question 2

The 2” high rise hose comes in 50’ lengths with 1 1/2” couplings and is what to reduce wear and increase grip?

Answer 2

Ribbed

Question 3

The shoulder of the couplings are what to reduce snagging on furniture, door frames, and other obstacles?

Answer 3

Tapered

Question 4

Use of the blue 2” hose other than hose packs should be what?

Answer 4

Avoided

Question 5

A benefit of the of the 2” hose especially when working in stairwells or interior hallways is its ability to resist what?

Answer 5

Kinks

Question 6

Under pressure the 2” hose can be bent within how many inches before it will kink?

Answer 6

12 inches

Question 7

The 2” hose with a 75 psi 200 gpm nozzle will flow 200 gpm with a friction loss of what psi per 100 feet?

Answer 7

35 psi

Question 8

A company’s complement of high rise hose packs will consist of what?

Answer 8

2 100’ hose packs

1 pig tail

Question 9

Having 2 100 foot hose packs will give the company an option of laying a single 200’ hose lay delivering 200 gpm air 2 single 100’ lines delivering a total of what gpm?

Answer 9

400 gpm

Question 10

Officers should keep in mind that the primary objective of the company assigned fire attack is to get how many lines into operation?

Answer 10

1 line

Question 11

What components consist of a high rise hose pack?

Answer 11

2 50’ sections of lightweight 2” blue hose
1 1 1/2” complete 200 gpm spray nozzle
1 2 1/2” to 1 1/2” reduced
5 2’ ladder straps

Question 12

What components consists of the pigtail assembly?

Answer 12

1 8’ section of lightweight blue 
2 1/2” Hose
1 2 1/2” to 1 1/2” gates wye
1 lightweight folding spanner
1 2 1/2” 60 degree elbow
2 ladder straps

Question 13

To assemble the high rise hose packs you can begin making the packs with the hose rolled or?

Answer 13

Stretched out straight

Question 14

The hose packs are fashioned using a 30-45 min bottle to form what letter shaped single or double layered?

Answer 14

U shape

Question 15

When making the hose packs, begin wrapping the hose around the bottle folding alternately against itself continuing folds about how many inches below the gauge of the bottle?

Answer 15

10 inches

Question 16

There is no need to wrap the hose tightly around the bottle, keep it loose enough so that the hose forms nicely into what shape?

Answer 16

Horseshoe

Question 17

To secure the hose pack, place the strap about how many inches above the bottom of the pack on each side?

Answer 17

8 inches

Question 18

When the packs are complete, the packs will weigh how many pounds compared to 64 pounds of 100’ of the 2 1/2” lightweight packs?

Answer 18

38 pounds

Question 19

The approximate dimensions will be how tall and how wide for single and double layer packs?

Answer 19

Single layer 40” tall and 22” wide

Double layer 32” tall and 16” wide

Question 20

For combination systems, the orifice plate can be found at 1 of 4 locations, where?

Answer 20

Soldered to the outlet itself
Behind the gasket on the drip cock
Soldered to the male end of the drip cock
Behind gasket on 2 1/2” hose

Question 21

If drop bagging 1 3/4” and extending with the 2” hose pack, your friction loss will be how many psi per 100’ of 1 3/4”?

Answer 21

50 psi

Question 22

If drop bagging 1 1/2” and extending with the 2” hose pack, your friction loss will be how many psi per 100’ of 1 1/2”?

Answer 22

130 psi

Question 23

Removal of the orifice plates on a combination system is to get max flow, failure to do so will limit the outlet to 200 gpm at a minimum of what psi residual pressure, preventing the 75 psi nozzle pressure and will not enable you to supply additional lines?

Answer 23

50 psi (BK 100- 45 psi)

Question 24

What type of outlet was the pigtail designed for?

Answer 24

Combination system hose cabinet

Question 25

For combination system, above what floor will you have a 100’ of 2 1/2” hose with a 1” straight tip?

Answer 25

4th floor (BK100 - 5th floor)

Question 26

The size of the orifice plate is determine by what on the supply side of an outlet?

Answer 26

Static pressure

Question 27

What tool can you use to remove a soldered orifice plate?

Answer 27

Spotted screwdriver or channels locks

Question 28

For a combination system, if the orifice plate has not been removed open the valve how much?

Answer 28

Fully

Question 29

For a combination system, if the orifice plate has been removed, open the valve how many turns then adjust from there?

Answer 29

1 1/2 turns

Question 30

For a combined system, the sprinkler system and fire department outlets are fed by a common what?

Answer 30

Riser (combined riser)

Question 31

For combined system, the system utilized a pressure reducing valve (PRV) when the pressure at the outlet exceeds what psi?

Answer 31

150 psi

Question 32

For combined systems, it is possible in new construction to encounter orifice plates on the upper floors where the system pressure falls below what psi?

Answer 32

150 psi

Question 33

On a combined system, you will typically find orifice plates on what floors?

Answer 33

Typically on the top 6-8 floors

Question 34

After each use of the high rise hose pack, how do you clean it?

Answer 34

Scrub the outer jacket to free it of dirty and fire debris

Question 35

What is the service test pressure of the high rise hose?

Answer 35

300 psi