Fire Protection Hydraulics and Water Supply
Fire Protection Hydraulics and Water Supply
1. A pump operator calculated eight psi of friction loss for each 100 toes of hose. What can be the overall friction loss for 350 toes of hose?
24
28
16
20
5 factors
QUESTION 2
1. Utilizing the predetermined coefficient chart, what’s the coefficient for a Three-inch hose with Three-inch couplings?
zero.67
zero.05
zero.eight
zero.1
5 factors
QUESTION Three
1. Whereas fixing the friction-loss formulation FL = C Q2 L, which of the next precisely displays tips on how to resolve for C Q2 L, with 200 toes of 1.75-inch hose flowing at 150 gallons a minute?
15.5(200/100)2(150/100)
15.5(150)2
15.5/(150)2
15.5(150/100)2(200/100)
5 factors
QUESTION four
1. Within the friction loss formulation FL = C Q2 L, L represents the worth for what?
Line diameter in inches multiplied by 100
Line diameter in inches divided by 100
Size of hose in toes divided by 100
Size of hose in toes multiplied by 100
5 factors
QUESTION 5
1. When pumping a standpipe, what’s common rule PDP that shouldn’t be exceeded until the system is designed to deal with a better stress if wanted?
150 psi
175 psi
200 psi
225 psi
5 factors
QUESTION 6
1. What’s the commonplace nozzle stress to a grasp stream fog nozzle?
100
150
80
50
5 factors
QUESTION 7
1. Within the friction loss formulation FL = C Q2 L, FL represents the worth for what?
Fluid loss
Friction loss
Flux loss
Circulation loss
5 factors
QUESTION eight
1. What’s the friction loss for all grasp stream home equipment?
zero
10
25
35
5 factors
QUESTION 9
1. Whereas fixing the Condensed Q friction-loss formulation for 5-inch hose, which of the next precisely displays tips on how to resolve for Q2 when flowing 1000 gpm?
(1000/100)2
2(1000/100)2
(1000/10)2
2(10/100)2
5 factors
QUESTION 10
1. Handline smooth-bore nozzles are generally rated at what nozzle stress?
45 psi
80 psi
50 psi
100 psi
5 factors
QUESTION 11
1. Calculate the overall friction loss by utilizing the next particulars:
Three-inch hose with 2.5-inch couplings
Quantity = 200 GPM
Hose Size = 300 toes
four.08
four.80
eight.04
9.60
10 factors
QUESTION 12
1. You’re working at a high-rise construction hearth, and you’re the pump operator of an engine firm that’s pumping on to the tip of aerial equipment that has a pre-piped waterway. Calculate the pump discharge stress by utilizing the next particulars:
5-inch hose
Quantity = 500 GPM
Hose Size = 400 toes
Fog Nozzle on the Aerial Tip
Aerial Machine Raised 100 toes
133
158
183
233
10 factors
QUESTION 13
1. Calculate the overall friction loss utilizing the condensed Q technique by utilizing the next particulars (spherical to the closest complete quantity):
5-inch hose
Quantity = 800 GPM
Hose Size = 500 toes
System: Q2/15
four
12
21
64
10 factors
QUESTION 14
1. Calculate the pump discharge stress by utilizing the next particulars:
2.5-inch hose
Quantity = 300 GPM
Hose Size = 200 toes
Nozzle Stress = 50
68
70
86
90
QUESTION 15
1. Calculate the overall friction loss with the next particulars:
1.75-inch hose
Quantity = 150 GPM
Hose Size = 200 toes
50
69.75
75.69
108
