Adischarge meter to be used in a 40 cm pipeline carrying oil (ν = 10-5 m2/s, rho = 860 kg/m3) is to be calibrated by means of a model (1/12 scale) carrying water (t = 20°c and standard atmospheric pressure). (a) if the model is operated with a velocity of 0.48 m/s, find the velocity for the prototype based on reynolds-number scaling. (b) for the given conditions, if the pressure difference in the model was measured as 3.0 kpa, what pressure difference would you expect for the discharge meter in the oil pipeline?

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal