1. Assignment No. 1 [Grup 8]
Figure below shows a portion of a hydraulic circuit. The pressure point B must be 200 psig when the volume flow rate is 60 gal/min. The hydraulic fluid has a specific gravity of 0,90 and a dynamic viscosity of 6,0x10-5 lb-s/ft. The total length of pipe between A and B is 50 ft. The elbow are standard. Calculate the pressure at the outlet of the pump at A.

2. Assignment No. 2 [Grup 9]
Figure below depicts gasoline flowing from storage tank into a truck for transport. The gasoline has a specific gravity of 0.68 and temperature is 25 oC. Determine the required depth h in the tank to produce a flow of 1500 L/min into the truck. Since the pipes are short, neglect the energy losses due to pipe friction but do consider minor losses.

3. Assignment No. 3 [Grup 11]
In water pollution control project, the polluted water is pump vertically upward 80 ft and then sprayed into the air to increase the oxygen content in the water and to evaporate volatile materials. The system is sketched in figure below. The pollution water has a specific weight of 64.0 lbf/ft3 and a dynamic viscosity of 4.0x10-5 lb-s/ft . The flow rate is 0.50 ft3 /s The pressure at inlet to the pump is 3.50 psi below atmospheric pressure. The total length of discharged pipe is 82 ft. The nozzle has a resistance coefficient of 32.6 based on the velocity head in the discharged pipe. Compute the power delivered by the pump to the fluid

4. Assignment No. 4 [Grup 12]
For the system shown below kerosene (sg=0,82) at 20oC is to be forced from tank A to reservoir B by increasing the pressure in the sealed tank A above the kerosene. The total length of 2-in Schedule 40 steel pipe is 38 m. The elbow is standard. Calculate the required pressure in tank A to cause a flow rate of 435 L/min.

5. Assignment No. 5 [Grup 1]
Kerosene at 25 oC is flowing in the system shown below. The total length of 2-in Type K copper tubing is 30 m. The two 90 bends have a radius of 300 mm. Calculate the volume rate into tank B if a pressure of 150 kPa is maintain above the kerosene in tank A.

6. Assignment No. 6 [Grup 6]
Figure below depicts a pipe delivering water at 15 oC from main line to a factory. The pressure at the main is 415 kPa. Compute the maximum allowable flow rate if the pressure at the factory must be no less than 200 kPa.

7. Assignment No. 7 [Grup 7]
Turpentine at 77o F is flowing from A to B in a 3-in coated ductile iron pipe. Point B is 20 ft higher than A and the total length of pipe is 60 ft. Two 90o long radius elbows are installed between A and B Calculate the volume flow rate of turpentine if the pressure at A is 120 psig and the pressure at B is 105 psig.

8. Assignment No. 8 [Grup 10]
Oil with specific gravity of 0.93 and dynamic viscosity of 9.5x10-3 Pa.s is flowing into the open tank shown below. The total length of 2-in tubing is 30 m. For 4-in tubing the total length is 100 m. The elbows are standard. Determine the volume rate into the tank if the pressure at point A is 175 kPa.

9. Assignment No. 9 [Grup 2]
The tank shown below is to be drained to a sewer. Determine the size of new Schedule 40 steel pipe which will carry at least 400 gal/min of water at 80 oF through the system shown. The total length of pipe is 75 ft.

10. Assignment No. 10 [Grup 3]
Figure below shows a pipe delivering water to putting green on a golf course. The pressure in the main is at 80 psig and it is necessary to maintain a minimum of 60 psig at point B to adequate supply a sprinkler system. Specify the required size Sachedule 40 steel pipe to supply 0.5- ft3 /s of water at 60o F.

11. Assignment No. 11 [Grup 4]
Determine the required size of new Schedule 80 steel pipe to carry water at 160o F with a maximum pressure drop of 10 psi per 1000 ft when the flow rate is 0.5 ft3 /s.

12. Assignment No. 12 [Grup 5]
What size of standard type K tube is required to transfer 0.60 m3 /s of water at 80 C from heater where the pressure is 150 kPa to an open tank ? The water flows from the end of the tube into atmospheres. The tube is horizontal and 30 m long.