The fire extinguishing agent dispensed by...

Question 1 / 2707066636ef028f7522a1c52089d

Question 1 of 2707066636ef028f7522a1c52089d

The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020

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Question 1 of 27070

The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Mechanical foam proportioner / in-line eductor operation • Where air is introduced vs where foam concentrate is picked up in foam systems • What happens inside chamber E before the mixture exits the nozzle

💭 Think About

• Look at the shapes and locations of points C and D: which one is clearly positioned to be dropped into a foam concentrate container? • Follow the water path from A toward B: at what point could a low‑pressure area form that would suck (educt) something into the stream? • Think about how mechanical foam is normally made: do you first mix water and foam concentrate, then add air, or do you mix air and water first, then add foam?

✅ Before You Answer

• Identify which labeled part is likely the pick‑up tube for foam liquid by its length and position relative to a foam bucket. • Decide where air would naturally be drawn into the system (openings, screens, or mesh), and where water must already be flowing under pressure. • Confirm in the wording of each choice whether the sequence water + foam concentrate, then air (or another order) matches how a typical mechanical foam nozzle works.

Question 1 of 27070

The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020

educating air through "D" and mixing it with water in chamber "E"

educting mechanical foam through "D" and mixing it with water and air in chamber "E"

educting chemical foam through "D" and mixing it with water in chamber "E"

educting air through "C", mechanical foam through "D", and mixing them with water in chamber "E"

Question 1 / 2707066636ef028f7522a1c52089d

Question 1 of 2707066636ef028f7522a1c52089d

The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020

Back

Question 1 of 27070

The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020

If the question has a related picture, it will appear here.