Water at 59 F flows through a straight section of a 6-in-ID cast-iron pipe with an average velocity of 4 fps. The pipe is 120 ft long, and there is an increase in elevation of 2 ft from the inlet of the pipe to its exit. Find the power required to produce this flow rate for the specified conditions. NRE= relative roughness = [Use 4 decimals] Fanning Friction Factor = Head loss = Pumping Power requirement = [Use 4 decimals] ft [Use 1 decimal only.] hp [Use 3 decimals]

4.) Determine detonation pressure for ANFO with specific gravity 0.8 in a 3 inch diameter pipe with a detonation velocity of 12,000 ft/sec.

QUESTION 2 The truss carries the loads as shown in Figure 2. The truss is supported by pin at A and smooth roller support at G. (a) Determine the reactions at pin A and smooth roller support at G. (b) By using method of section, determine the force in members CD, CJ and KJ of the truss. State if the members are in tension or compression. -3 m 40 kN B L -3 m- 80 KN K D Figure 2 E 1 -3 m 50 N F TH 3 m 4m

As shown in Figure D, three water reservoirs are connected by three pipes. The diameters in each pipe is 1 ft and the Fanning friction factor in each pipe is 0.02. The effective lengths of each pipe are given in the Figure along with other relevant data. Determine the flow rate into or out of each reservoir as well as the Reynolds number in each pipe. (Hint: Start the computations by assuming that the water flows into reservoir B).

1. An incompressible fluid of kinematic viscosity v = μ/p= 10-4 m²/s flows steadily through a circular pipe of diameter d = 10 cm. The pipe flow is fully developed. Friction Factor If the average velocity V is 2 m/s, is the flow laminar or turbulent? What is the value of the friction factor, f? If the pipe is perfectly smooth on its internal surface and V is 20 m/s, the pipe flow is turbulent (double check yourself). Evaluate its friction factor using the Moody chart below. Repeat (c) by numerically solving the Colebrook formula (using, for example, Matlab). Attach the source code you used. Suppose that the pipe internal surface is rough. Also suppose that increasing V up to 200 m/s yields no change in the value of f found in (a). Determine the relative roughness, e/d, using the Colebrook formula. 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.015 0.01 Laminar Flow 64 Material Concrete, coarse Concrete, new smooth Drawn tubing Glass, Plastic Perspex Iron, cast Sewers, old Steel, mortar…