CH 9 ADD 1 HIGH PRESURE PUMPING

Question 0

High pressure engines are

Answer 0

Two stage 1000 gpm or 2000 gpm engines retro-fitted with a high pressure discharge elbow and have been issued specialized high pressure equipment to pump at discharge pressures over 250 psi and up to 600 psi

Question 1

Conventional engine companies are

Answer 1

Two stage 1000 gpm or 2000 gpm engines

Question 2

3rd stage engines

Answer 2

An engine with a 3rd stage. This 3rd stage can supply a maximum of 500 gpm up to 700 psi

Question 3

High pressure and 3rd stage engines have the following specialized equipment

Answer 3

• 3” high pressure hose 50 foot lengths
• High pressure fittings
• High pressure outlets
• Tether straps with gated hooks. This strap contains Velcro bands that allow the strap to be attached to the high pressure supply hose either before or after the hose is attached. It is recommended that units pre-attach the tether strap to the high pressure supply hose and store together as a unit.

Question 4

Concerning the high pressure outlets there is _____high pressure outlet on a high pressure engine and there are ____ high pressure outlets on 3rd stage engines

Answer 4

1

2

Question 5

High pressure pumping is defined as operating at discharge pressures over

Answer 5

250 psi

The IC shall be notified when high pressure pumping is necessary

Question 6

All engines including conventional engines are capable of providing pressures over 250 psi however

Answer 6

Unless emergency conditions exist and they are ordered to do so by the IC, conventional engines should NOT operate in pressures exceeding 250 psi

Question 7

When high pressure pumping operations are in use (over 250 psi) the following precautions are to be followed

Answer 7

Must use high pressure hose and fittings (painted white & heavier)
Must use tether strap
Whenever possible one length from Siamese
No more than 2 lengths from Siamese
Prior to pumping need a safety zone on each side of engine
Tape, rope or stanchions used to designate safety zone
Safety zone of at least 50 feet in all directions around pumper
If 2 lengths are needed safety zone may need to be expanded
All unused gates & outlets must be closed and capped

Question 8

Each engine operating at high pressures must be controlled by the ECC and assisted by an

Answer 8

ECC from a NON-Pumping engine. One ECC shall operate the pump and one ECC shall monitor radio communications. Other ECC’s of NON-Pumping engines shall assist in keeping persons out of the safety zone

Question 9

Supply lines must be secures using the tether strap. The tether strap must be secured to

Answer 9

Both the engine and the building fire department connection. When more than one length of hose is required each length MUST be tethered and secured to each other by the tether gate hook.

Question 10

When ordered to pump in high pressures engines WITHOUT tethering straps should secure the supply line to the building Siamese connection and apparatus using a

Answer 10

Utility Rope

Question 11

A Battalion Chief should be designated as the ______

to control this operation. The operation MAY be implemented pending their arrival

Answer 11

High Pressure Pumping Group Supervisor

Question 12

The IC should ensure building occupants avoid

Answer 12

Stairwells containing standpipes when possible. Public address and building communication systems should be used if needed

Question 13

Stairwells served by standpipes must

Answer 13

NOT be used as staging or rest areas during high pressure pumping operations. Use a minimum amount of operating personnel in these stairways

Question 14

Preset pressures on apparatus equipped with pressure governors should

Answer 14

NOT be used when charging a standpipe system. Once the supply line is charged pressures are to be increased slowly to avoid damage to building piping

Question 15

When more than one engine supplies the standpipe system, ECC’s shall coordinate to ensure that they

Answer 15

Operate at the same discharge pressures

Question 16

The standpipe system should be supplied by 2 engines. This will require more than one high pressure or 3rd stage engine to be assigned or special called to the incident if pressures higher than 250 psi are required. When only one building Siamese connection is available, stretch the 2nd supply line to the

Answer 16

1st floor outlet

DO NOT connect two high pressure supply lines to a single building Siamese

Question 17

Pressures exceeding 600 psi will require a

Answer 17

3rd stage engine. When 3rd stage pumping is implemented the IC shall ensure an additional 3rd stage engine is assigned to the incident. ECC’s intending to pump using the 3rd stage MUST notify and get approval from the IC

Question 18

Who can order the use of a 3rd stage pumper

Answer 18

Only a BC or higher rank can order the use of a 3rd stage

Question 19

As compared to 2 stage engines the 3 stage engines with the 3rd stage engaged can pump

Answer 19

Higher volumes at pressures over 500 psi and will do so at lower pump rpm’s. The increased efficiency makes the 3rd stage engines the preferred choice for pumping operations requiring discharge pressures over 500 psi

Question 20

Preset pressures on apparatus equipped with pressure governors

Answer 20

SHOULD NOT BE USED when charging a standpipe system

Question 21

When other than 1st due to a fire in a high rise building, officers of high pressure engines AND 3rd stage engines shall direct their ECC’s to position the apparatus at a

Answer 21

Hydrant in proximity to the Siamese

Question 22

DO NOT connect _____ high pressure lines to a single building siamese. When only one Siamese is available stretch the 2nd supply line to the __________

Answer 22

2

1st floor outlet

Question 23

In regards to 3rd stage pumping pressures exceeding _____ psi will require a 3rd stage

Answer 23

600 psi

Question 24

When 3rd stage pumping is implemented the IC shall ensure an

Answer 24

Additional 3rd stage engine is assigned to the incident

Question 25

Only an IC at the rank of ______ or higher may order the use of the 3rd stage

Answer 25

BC or higher

Question 26

The increased efficiency of a 3rd stage engine makes it the preferred choice for pumping operations requiring discharge pressures over ______ psi

Answer 26

500 psi

Question 27

Assuming 2 lengths of 3 1/2 hose between the pumper and the Siamese, 3 lengths of 2 1/2 hose attached to the standpipe outlet with 1 1/8 MST, the pump discharge pressure for each hose line attached to a standpipe system should be _____ psi plus ____ psi for each floor above grade

Answer 27

100 psi

5 psi