Ch 9 Add 1 HIGH-PRESSURE PUMPING OPERATIONS

Question 1

 High-Pressure Engines: Two-stage 1000 gpm or 2000 gpm engines retro-fitted with
a ____________ and have been issued specialized highpressure
equipment to pump at discharge pressures over ____ psi and up to ____ psi.

Answer 1

a special high-pressure discharge elbow,
250psi , 600psi
Sec 1.1

Question 2

3rd Stage Engines: An engine with a 3rd Stage. This 3rd Stage can supply a maximum
of ____ gpm up to ____ psi.

Answer 2

500 , 700
Sec 1.1

357

Question 3

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

Answer 3

 3” high-pressure supply hose, 50’ per length.
 High-pressure fittings. (painted white, heavier)
 High-pressure outlets.
o One HP outlet on HP Engines.
o Two HP outlets on 3rd Stage Engines.
 Tether straps with gated hooks.
Sec 1.2

Question 4

Can conventional engines operate in excess of 250 psi ?

Answer 4

YES!
Unless emergency conditions exist AND they are ordered to do so by the IC,
conventional engines should not operate in pressures exceeding 250 psi
Sec 1.4

Question 5

Fire on the 75th floor , what is the operating pressure needed ?

Answer 5

500psi doofus

Check Table 2 in Sec 2.1

Question 6

At what pressure is to be considered High Pressure Operations ?

Answer 6

Excess of 250 psi!

Sec 2.2

Question 7

Prior to starting high-pressure pumping what must first be established ?

Answer 7

A safety zone must be established on each side
of the engine and high-pressure supply hose. Warning tape, rope or stanchions are to be
used to designate this zone
Sec 3.1

Question 8

Maintain safety zones of at least _____ around a working engine in all directions
including the high-pressure supply hose.

Answer 8

50 feet

Sec 3.1

Question 9

When using high pressure hose for high pressure pumping no more than 3 lengths shall be stretched from pumper to siamese. Agree or Disagree

Answer 9

Disagree fool!!
Whenever possible, an engine supplying high-pressure should be positioned within 1 hose
length of the fire department connection being supplied.
No more than 2 connected lengths
of high-pressure supply hose should be stretched to the fire department connection
Sec 3.1

Question 10

In an extreme emergency High pressure or 3rd stage pumpers can use standard 3 1/2” as a supply line. True or False

Answer 10

FALSE!! MUST USE
Specially trained and equipped ‘High-Pressure’ or ‘3rd Stage’ engines MUST use their
high-pressure supply hose, fittings (painted white and noticeably heavier than
conventional fittings) and tether strap
Sec 3.1

Question 11

When operating in high pressure should the gates and outlets be closed ?

Answer 11

YES!!
All unused gates and outlets on the apparatus MUST be closed and capped. All caps must
be secured tightly.
Sec 3.1

Question 12

Each engine operating at high-pressure must be controlled by the ECC and assisted by Who ? And shall do what ?

Answer 12

ECC from a non-pumping engine. One ECC shall operate the pump and one ECC shall
monitor radio communications. Other ECCs of non-pumping engines shall assist in
keeping persons out of the safety zone.
Sec 3.1

Question 13

High pressure hose MUST be secured using the tether straps . At what points are the secured ? 1-3 What if tether straps unavailable ?

Answer 13

The tether strap shall be secured to
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 gated hook
No Tether use utility rope! secure apparatus and siamese
Sec 3.1

Question 14

During high pressure ops. stairwells served by standpipes are a good place to use as a rest area so as members can monitor system ?

Answer 14

NO!!
Stairwells served by standpipes must not be used as staging or rest areas during high
pressure pumping operations. Use a minimum amount of operating personnel in these
stairways.
Sec 3.1

Question 15

Preset pressures on apparatus equipped with pressure governors, should be used when
charging a standpipe system. Agree or Disagree

Answer 15

Disagree!!
Preset pressures on apparatus equipped with pressure governors, should not be used when
charging a standpipe system. Once the supply line is charged, pressures are to be
increased slowly to avoid damage to the building piping.
Sec 3.1

Question 16

When more than one eng supplies a standpipe it is good practice for one engine to supply at a pressure 20 psi lower than the other ?

Answer 16

No!!
When more than one engine supplies the standpipe system, ECCs shall communicate and
coordinate to ensure that they operate at the same discharge pressure.
Sec 3.1

Question 17

Officers must be aware of the potential need for high-pressure pumping operations and
the pumping capabilities of responding engines. When other than 1st due where shall officers direct ECC’s to position rigs?

Answer 17

When other than first due to a fire in a
high-rise building, officers of high pressure Engines and 3rd Stage Engines shall direct
their ECCs to position the apparatus at a hydrant in proximity to the standpipe siamese
Sec 3.1

Question 18

The standpipe system should be supplied by two 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. Where shall the 2nd supply line go ?

Answer 18

When only one building siamese connection
is available, stretch the second supply line to the first floor outlet.
DO NOT connect TWO
high-pressure supply lines to a single building siamese connection.
Sec 3.1

Question 19

Pressures exceeding ____ psi will REQUIRE a 3rd stage engine. When 3rd stage pumping is
implemented, the IC shall ensure an additional 3rd Stage Engine is assigned to the incident.
As a heads up LT and the IC at the fire You order your ECC to engage the 3rd stage for pumping. Correct ?

Answer 19

600psi
NOO!!
ECCs intending to pump using the 3rd stage must notify and get approval from the IC. Only
an IC at the rank of Battalion Chief or higher may order the use of the 3rd stage.
Sec 4.1Over 600 psi 3rd stage REQUIRED
Over 500 psi 3rd stage is PREFERRED

Question 20

For pumping in excess of 500 psi . What pumper is preferred ?

Answer 20

As compared to two-stage engines, three-stage engines (with the third stage engaged) can
pump higher volumes at pressures over 500 psi and will do so at lower pump rpm’s.
This increased efficiency makes the 3rd Stage Engines the PREFERRED choice for pumping
operations requiring discharge pressures over 500 psi
Sec 4.2
Over 600 psi 3rd stage REQUIRED
Over 500 psi 3rd stage is PREFERRED