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54 Cards in this Set
- Front
- Back
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At what pressure should solid stream nozzles on handlines be operated at? |
50psi |
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At what pressure should solid stream nozzles on master stream appliances be operated at? |
80psi |
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What are the standards tip sizes for the 2.5” hose in Fairfax County? |
1 1/8” 1 1/4” |
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How much water does a 1 1/8” smooth bore tip flow? |
265gpm @ 50psi |
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How much water does a 1 1/4” smooth bore tip flow? |
325gpm @50psi |
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What is the reach of a 1 1/8” smooth bore tip? |
45’ |
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What is the reach of a 1 1/4” smooth bore tip? |
45’ |
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What’s is the nozzle reaction of a 1 1/8” smooth bore tip? |
99lbs |
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What is the nozzle reaction of a 1 1/4” smooth bore tip? |
123lbs |
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Why do driver/operators need to be able to determine the amount of water discharged from a solid stream nozzle? |
-Preform friction loss calculations -Determine pump discharge pressure -Test the water supply when a nozzle is attached to a hydrant |
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What formula is used to determine water flow from any solid stream nozzle? |
GPM= 29.7 x d2 x √NP |
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What do all the terms in the formula for flow from a solid stream nozzle stand for? GPM= 29.7 x d2 x √NP |
GPM = discharge in gallons per minute 29.7 = a constant d = diameter of the orifice in inches NP = nozzle pressure in pounds per square inch |
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What size smooth bore tips are on E413 deck gun? |
1 3/8” 500gpm 1 1/2” 600gpm 1 3/4” 800gpm 2” 1000gpm |
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What is the reach of the Akron Mercury Quick Attack Monitor with a fog nozzle on straight stream? |
185’ |
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What is the reach of the Akron Mercury Quick Attack Monitor with the fog nozzle on a medium fog pattern? |
50’ |
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What is the reach of the Akron Mercury Quick Attack Monitor with the fog nozzle on wide fog? |
25’ |
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What is the nozzle pressure for nozzles on handlines? |
50psi |
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What is the nozzle pressure for nozzles on master streams? |
80psi |
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How much water does the Akron Assault Nozzle flow? |
Removable fog nozzle - 175gpm @ 50psi Smooth bore - 185gpm @ 50psi |
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What size tip is the smooth bore of the Akron Assault Nozzle? |
15/16” |
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What is the effective reach of the Akron Assault Nozzle with the fog nozzle? |
24’ |
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What is the effective reach of the Akron Assault Nozzle with the smooth bore? |
26’ |
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What is the nozzle reaction for the fog nozzle of the Akron Assault Nozzle? |
67lbs |
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What is the nozzle reaction for the fog nozzle of the Akron Assault Nozzle? |
67lbs |
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What is the nozzle reaction of the smooth bore of the Akron Assault Nozzle? |
71lbs |
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How much air will the Akron Assault Nozzle on straight stream move? |
1,200 - 1,600 cubic feet per minute |
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How much air will the Akron Assault Nozzle move on a wide fog? |
6,000 cubic feet per minute |
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What is the maximum water flow for a handline? |
350gpm |
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Master stream fog nozzles are operated at what nozzle pressure? |
100psi |
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Master stream smooth bore nozzles are operated at what nozzle pressure? |
80psi |
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How much water does the Akron Mercury Quick Attack Monitor flow? |
500gpm with both the fog and the 1 5/8” smooth bore |
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What is the size of the Akron Mercury Quick Attack Monitors smooth bore? |
1 5/8” |
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What is the size of the inlet on the Akron Mercury Quick Attack Monitor? |
2.5” |
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What is the size of the outlet on the Akron Mercury Quick Attack Monitor? |
2.5” |
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What size hose is generally used with the Akron Mercury Quick Attack Monitor? |
2.5” or 3” |
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What is the appliance loss for the Akron Mercury Quick Attack Monitor? |
10 psi |
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What is the rotation available on the Akron Mercury Quick Attack Monitor? |
20° of rotation left and right 60° to 30° for unmanned use Down to 20° for manned use |
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What is the formula for calculating nozzle reaction for solid stream nozzles? |
NR = 1.57 x d^2 x NP |
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What is the formula for calculating nozzle reaction for fog stream nozzles? |
NR = 0.0505 x Q x √Np |
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Starting pressure for 200’ blitz with 1 1/8 tip? |
75 psi |
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Starting pressure for 200’ blitz with 1 1/8 tip? |
75 psi |
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Starting pressure for 250’ blitz with 1 1/4 tip? |
81psi |
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Starting pressure for 200’ blitz with 1 1/8 tip? |
75 psi |
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Starting pressure for 250’ blitz with 1 1/8 tip? |
81psi |
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Starting pressure for 200’ blitz with 1 1/4 tip? |
92 psi |
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Starting pressure for 250’ blitz with 1 1/4 tip? |
103 |
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Starting pressure for 100’ bumper |
80 psi |
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Starting pressure for 150’ bumper? |
95psi |
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Starting pressure for 200’ cross lay? |
100 psi |
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Starting pressure for 250’ cross lay? |
125psi |
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Starting pressure for 300’ rear? |
140 psi |
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Starting pressure for 400’ rear? |
170 psi |
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Starting pressure for smallest 3 deck gun stacking nozzles? |
110psi |
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Starting pressure for 2” deck gun nozzle? |
120psi |
