Exam Questions and CORRECT Answers
Nozzle Reaction Solid Stream - CORRECT ANSWER - NR= 1.57 x d² x NP
Friction Loss - CORRECT ANSWER - FL= C x Q² x L
Elevation Pressure Loss - CORRECT ANSWER - EP= .5 x H
Pump Discharge Pressure - CORRECT ANSWER - PDP= NP + TPL
Multistory Building Pressure Loss - CORRECT ANSWER - EP= (5 PSI) x (Number of
Stories - 1)
Appliance Pressure Loss - CORRECT ANSWER - Master Stream 25 PSI, Appliance
Flow<350= 0 PSI, >350= 10 PSI
Nozzle Reaction Fog Stream - CORRECT ANSWER - NR= .0505 x Q x √NP
GPM - CORRECT ANSWER - GPM= 29.7 x d² x √NP
1 3/4 Hose with 1 1/2 inch coupling Coefficient - CORRECT ANSWER - 15.5
2 Inch Hose Coefficient - CORRECT ANSWER -8
2 1/2 Inch Hose Coefficient - CORRECT ANSWER -2
3 with 2 1/2 Inch coupling Coefficient - CORRECT ANSWER - .8