Calculate the design-stage uncertainty in estimating a nominal pressure of 10,000 n/m^2 using an inclined manometer (resolution: 1 mm; zero error (offset) uncertainty: 0.5 mm) with water at 20℃ for inclination angles of 10 to 90 degree (using 20-degree increments). the inclination angle can be set to within 1 degree. the liquid used in the manometer has a specific weight of ym = 9,770 0.5% n/m^3 . the manometer resolution is 1 mm. zero-point offset error is 0.5 mm. also, in each of the three case (i. e., 10, 50, 90 degrees), determine which uncertainty element (i. e., the inclination angle, the specific weight of the liquid, or the length) dominates this the overall design-stage uncertainty.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.