1.The volume flow rate of the air passes through the 4" diameter spiral duct is 4500 cfm. The static head reading is 20 ft water gage. The barometer reading is 14 psi. Determine the total head in meters of water if the density of water is 999 kg/m3. 2. A pump is used to deliver 300 m3/hr of liquid with a specific gravity of 3.4 in 6 hours. Determine the specific weight of the liquid of the gravitational acceleration is 30.48 fps2 in MN/m3. 6. A pump has a specifications of 200 rpm, 20 C, 4 atm gauge and 20 kW. Its changes to 400 rpm, 40 R and 20 atm vacuum. The barometric pressure is 2 atm. Determine the new power in CHU/hr. 7. A compressor has a suction condition of 1 atm and 20 C. The volume flow rate of the air is 5 drums/min and the delivery pressure is 5 MPag. Determine the work in metric hp.