Questions and Answers
What GPM does the 1 1/8" tip deliver?
Where is the 1 1/4" tip located?
What GPM does the Chief 175 GPM Fog Nozzle deliver at 50 psi?
For what purpose is the Chief 175 GPM Fog Nozzle NOT utilized?
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What is the inlet size of the Chief 250 GPM Fog Nozzle?
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What is the flow rate of the 7/8" tip?
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What is the inlet size of the 2 1/2" shut-off?
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Which series of Elkhart Brass has a wider, horseshoe-style bale?
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Which tip is part of the two-piece assembly used with the 2 1/2" shut-off?
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Which Elkhart Brass series of shut-off has a shorter base?
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What is the diameter of the integral smoothbore in the 1 1/2" shut-off?
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What is the designed flow rate delivered by the 1 1/2" shut-off?
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Which series are the Elkhart Brass 1 1/2" shut-offs available in?
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What is the required handline flow rate for commercial fires as per SOG 203.09?
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What are the inlet and outlet diameters of the 1 1/2" shut-off?
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Which type of hose is this nozzle compatible with?
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Which hose diameter is not compatible with this nozzle?
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On which type of lines is this nozzle generally deployed?
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The nozzle can be used with which of the following hose diameters?
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Which hose diameter is incorrect for this nozzle?
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What is one of the hose diameters compatible with this nozzle?
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Which nozzle compatibility is accurate?
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Study Notes
Structural Firefighting Nozzles and Tips
Shut-Offs
- The District uses 1 1/2" and 2 1/2" shut-offs, both made by Elkhart Brass, in Legacy and XD series.
- The 1 1/2" shut-off has an integral smoothbore with a diameter of 1 1/8", delivering 265 GPM, and complies with SOG 203.09.
- The 2 1/2" shut-off has a 2.5" inlet and 1.5" outlet, and is paired with medium-diameter hose lines that deliver over 200 GPM.
Tips
- The 7/8" tip is the primary tip for small diameter attack lines, delivering 160 GPM.
- The 1" tip is used in a two-piece assembly with a 1 1/8" tip, delivering 210 GPM, and is connected to a 2 1/2" shut-off.
- The 1 1/8" tip is a component of the two-piece tip assembly, delivering 265 GPM, and can be paired with the dedicated overhaul tip.
- The 1 1/4" tip is used on the Blitz Line, delivering 325 GPM, and is utilized for transitional fire attack, significant fire conditions, or exposure protection.
Fog Nozzles
- The Chief 175 GPM fog nozzle is used as an auxiliary nozzle on the Trash Line, delivering 175 GPM at 50 psi, and is not used for structural firefighting.
- The Chief 250 GPM fog nozzle is used as an auxiliary nozzle, paired with medium-diameter hose, and is deployed on tertiary lines, compatible with 2.25", 2.5", and 3" hoses.
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Description
This quiz covers the use of 1 1/2" shut-off nozzles and tips in structural firefighting, including their design and compliance with commercial fire regulations.
