10. One line taken off Engine 2 is 350 feet of 2.5" line equipped with a 275 gpm constant flow nozzle. The other line is a 2" line 200 feet in length equipped with a 175 gpm constant flow nozzle. What is the friction loss for this layout?

11. Firefighters from Engine 2 have advanced a 250 foot section of 1.5 inchline to attack a car fire. The line is equipped with a 30 gpm fixed-gallonage fog nozzle rated at 50 psi nozzle pressure. What is the required pump discharge pressure?

12. A 400 foot length of 4 inch hose has been taken downhill and reduced to 200 feet of 2.5 inch hose with a 250 gpm fixed gallonage nozzle working at 100 psi nozzle pressure. The nozzle pressure is being used at a location that is 120 feet below the pump.What is the required pump discharge pressure?

13. The crew from engine 8 has taken off 300 feet of 3 inch hose with 3 inch couplings. They have wyed it into two 1.5 inch attack lines each 150 feet in length. The attack lines are equipped with inch tips at 50 psi nozzle pressure. What is the required pump discharge pressure?

14. The pumper at the end of a relay is supplying a 1 inch tip through a single 2.5 inch line. Nozzle pressure is 50 psi. What is the maximum distance that the last pumper in the relay should be placed from the attack pumper supplying the 1 inch tip if a single 2.5 inch hose is stretched between the two pumpers and the layout is on ground level?

15. The distance from the last hydrant to the fire is 3500 feet. The fire is located 80 feet above the hydrant. A 325 gpm fog nozzle is to be used on the fire. If a single 2.5 inch hose is to be used in the relay, how many pumpers are required and what is the maximum distance between them?