A fire nozzle is coupled to the end of a hose with inside diameter D = 6 in. The nozzle is contoured smoothly and has outlet diameter d = 1.1 in. The design inlet pressure for the nozzle is p1 = 109 psi (gage). Evaluate the maximum flow rate the nozzle could deliver.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor