6. C. 0.7389
As shown below:
SG =
141.5
=
141.5 = 141.5 = 0.7389
131.5 + API
131.5 + 60 161.5
7. B. 83.9 Feet.
As shown below:
Feet of Head = PSI x 2.31 = 30 PSI x 2.31 = 83.9 feet
SG
.8260
8. B. 297; Laminar.
As shown below:
Flow velocity: 15 mph Converts to:V = 15 mph x 1.47 = 22 ft/sec
Pipe ID: 0.5 feet
Viscosity: 2.2 ft2/min Converts to:Y = 2.2 ft2/min 60 = 0.037
Re = V x D = 22 x 0.5 = 297 LAMINAR
Y
0.037
9. B. 18 PSI
As shown below:
f x L x V2 = .015 x 11,616 x (3.8)2 = 2516 = 73 feet
Hf =
64.4 x D
64.4 x .535
34.45
73 x .5725 = 18 PSI
2.31
10. D. Ordnance Corps. (page 1-13, para (3)(b).
1-28
QM5203
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