4- Air at 105 kPa and 37°C flows upward through a 6-cm-diameter inclined duct at a rate of Q (L/s). The density of air at this temperature and pressure is 1.10 Kg/m³. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.20 m. Determine the differential height between the fluid levels of the two arms of the manometer. Q (L/s) Last digit of YorkU ID# 80 ending with 5 to 9 Air h

1- Water flows through a horizontal pipe at a rate of 9.1 L/s. The pipe consists of two sections of diameters 10.16 cm and 5.08 cm with a smooth reducing section. The pressure difference between the two pipe sections is measured by a mercury manometer. Neglecting frictional effects, (a) determine the differential height of mercury between the two pipe sections. (b) How would the reading change if the manometer on the 2in pipe is replaced by a pitot tube? 10.16 5.08 h

Determine (a) the magnitude and (b) direction of the anchoring force needed to hold the horizontal elbow and nozzle combination shown in the figure below in place. Atmospheric pressure is 97.1 kPa. The gage pressure at section (1) is 103 kPa. At section (2), the water exits to the atmosphere. Assume p₁ = 103 kPa, V₁ = 4 m/s. (a) Kx = i 2260.24 (b) to the left N V₂ 160 mm Section (2) 300 mm V₁ Water Section (1) P1 V₁

Air in a room at T0 = 290 K and P0 = 90 kPa is to be drawn by a vacuum pump through a 3-cm-diameter, 2-m-long adiabatic tube equipped with a converging nozzle at the inlet. The flow in the nozzle section can be approximated as isentropic. The static pressure is measured to be 87 kPa at the tube inlet and 55 kPa at the tube exit. Determine the mass flow rate of air through the duct, the air velocity at the duct exit, and the average friction factor for the duct.