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What is the minimum diameter allowed for piping serving fire hydrants on private fire service mains?
Suggested Answer: B
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Comprehensive and Detailed Step-by-Step Explanation:
Fire Hydrant Piping Diameter:
Per NFPA 24 (Standard for the Installation of Private Fire Service Mains and Their Appurtenances), Section 5.2.1, the minimum diameter for piping serving fire hydrants on private fire service mains is 6 inches (152.4 mm).
Why 6 Inches is Required:
A minimum 6-inch pipe ensures sufficient water flow and pressure to meet firefighting demands.
Other Options Explained:
Option A (4 in): Too small; insufficient for hydrant water supply.
Option C (8 in) and Option D (10 in): Acceptable but exceed the minimum requirement.
Summary:
The minimum diameter for piping serving fire hydrants on private fire service mains is 6 inches (152.4 mm).
37 comments · newest first
LA
Lashaunda
10 months ago
Really? I had no idea it was that small!
NO
Nohemi
11 months ago
Nope, definitely 6 inches.
HY
Hyun
11 months ago
Wait, I thought it was 8 inches?
OR
Oretha
11 months ago
Totally agree, 6 in. is the standard.
GE
Gerald
11 months ago
It's 6 inches for private fire mains!
KA
Kattie
12 months ago
I’m confused about this one. I thought it was 6 inches, but I also remember seeing 10 inches in some guidelines.
ER
Erick
12 months ago
I’m leaning towards 8 inches. I recall that larger diameters are often recommended for better pressure and flow.
CO
Cordie
12 months ago
I practiced a question like this, and I feel like 4 inches was mentioned as a minimum for some systems, but maybe not for hydrants specifically.
SU
Susana
1 year ago
I think the minimum diameter is 6 inches, but I’m not completely sure. I remember something about it being related to flow rates.
HA
Han
1 year ago
This is a good test of our understanding of fire protection systems. I'm confident I know the correct answer, but I'll double-check the options just to be sure.
EL
Elly
1 year ago
I'm a bit confused by this question. I don't have a strong grasp of the code requirements for fire hydrant piping. I'll need to carefully review the options and try to eliminate the ones that don't seem plausible.
SA
Sage
1 year ago
Ah, I remember learning about this in the fire protection module. I believe the minimum diameter is 6 inches, so I'll go with option B.
AR
Arlean
1 year ago
Hmm, I'm not entirely sure about the specifics of fire hydrant piping regulations. I'll need to think this through and try to recall any relevant information from the course material.
CA
Catina
1 year ago
This seems like a straightforward question about fire hydrant piping requirements. I'll review the options carefully and choose the one that best matches the minimum diameter allowed.
BA
Barbra
2 years ago
I'm not sure, but I think it's 4 in. (101.6 mm) for smaller systems
ME
Merilyn
2 years ago
I believe it's 8 in. (203.2 mm) because it allows for better flow of water
TO
Tom
2 years ago
Gee, I hope the right answer isn't 'all of the above' - that would really hydrant my progress.
SY
Sylvia
2 years ago
B) 6 in. (152.4 mm)
SO
Sol
2 years ago
A) 4 in. (101.6 mm)
GE
German
2 years ago
10 inches? That's overkill. Who needs that much pipe for a measly hydrant?
IZ
Izetta
2 years ago
Ha! They're trying to trick us. Everyone knows it's 4 inches for private fire service mains.
EL
Elenora
2 years ago
B) 6 in. (152.4 mm)
JE
Jessenia
2 years ago
That's correct, it is indeed 4 inches for private fire service mains.
JU
Julieta
2 years ago
A) 4 in. (101.6 mm)
SE
Selene
2 years ago
I think it's 6 in. (152.4 mm)
SA
Santos
2 years ago
Hmm, I think it's 8 inches to handle the flow rate. Better to err on the side of caution with fire safety.
DI
Dianne
2 years ago
Definitely, we don't want to compromise on safety measures.
TI
Tish
2 years ago
Yes, it's important to have the right diameter for fire hydrants.
LE
Lenna
2 years ago
I think you're right, better to be safe with fire safety.
AL
Alex
2 years ago
I believe it's 8 inches to handle the flow rate.
ST
Stephania
2 years ago
Gotta be 6 inches, that's the standard for fire hydrants, right?
RO
Ronnie
2 years ago
That makes sense, thanks for confirming!
JA
Janessa
2 years ago
Yes, you're correct. The minimum diameter allowed for piping serving fire hydrants on private fire service mains is 6 inches.
DI
Diego
2 years ago
D) 10 in. (254 mm)
KR
Kris
2 years ago
C) 8 in. (203.2 mm)
EL
Elroy
2 years ago
B) 6 in. (152.4 mm)
HO
Hoa
2 years ago
A) 4 in. (101.6 mm)