CE 2200 : Exam03Solutions2012
Document Summary
Euler"s equation is (a) a special form of continuity equation; (b) a special form of navier-stokes equation. (c) a special form of energy equation. (3). Flow work is . (a) the same as shaft work; (b) the work associated with a pump or turbine; (c) the work done by pressure forces. (4). 1: (20 pt): in a firefighting drill, a trainee learns to operate a fire hose. A nozzle is attached to the end of the hose to increase the velocity of the water. The nozzle outlet has a diameter of 3 in and the hose diameter is 6 in. The water flows at a rate of 0. 5 slugs/s. The length of the pipe is 2 ft. The weight of the hose, nozzle and water inside the nozzle is negligible. Step-2: first select a control volume to include the hose, nozzle and water inside the hose, as shown by the red dashed lines in the figure.
