Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

NFPA Exam CFPS Topic 4 Question 13 Discussion

Actual exam question for NFPA's CFPS exam
Question #: 13
Topic #: 4
[All CFPS Questions]

The typical discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is?

Show Suggested Answer Hide Answer
Suggested Answer: A

. 0.62

The discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is a dimensionless number that indicates the ratio of the actual flow rate to the theoretical flow rate of the nozzle. The discharge coefficient depends on the geometry and the flow conditions of the nozzle.the typical discharge coefficient of a solid stream nozzle for a standard orifice with sharp edges is about 0.62, which means that the actual flow rate is about 62% of the theoretical flow rate. This value is based on the experiments conducted by the National Bureau of Standards (now NIST) and reported in the paper ''Discharge Coefficients of Fire Nozzles'' 1. The paper also provides a formula to calculate the discharge coefficient for different nozzle diameters and pressures123


by Irma at Jul 14, 2025, 02:36 AM

Limited Time Offer

25%

Off

Get Premium CFPS Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Elenora
3 hours ago
Ah, the joys of fluid dynamics. It's like trying to herd cats, but with water instead of felines. I'm feeling bold, so I'll go with D. Who knows, maybe I'll surprise myself.
upvoted 0 times
...
Yuriko
2 days ago
Discharge coefficients, the bane of every engineering student's existence. But hey, at least we get to play with water and pretend it's work! I'll go with B, just to keep things interesting.
upvoted 0 times
...
Gianna
4 days ago
Ah, the age-old question of discharge coefficients. If only we could discharge our exams as easily as water through a nozzle, am I right? I'm going to have to go with C on this one.
upvoted 0 times
...
Rikki
6 days ago
Hmm, I remember learning about discharge coefficients in my fluid mechanics class. If I recall correctly, the sharp-edged orifice should have a lower coefficient than a rounded one. I'm going to go with option A.
upvoted 0 times
...

Save Cancel