Air is compressed by a 46-kw compressor from p1 to p2. the air temperature is maintained constant at 25°c during this process as a result of heat transfer to the surrounding medium at 20°c. determine the rate of entropy change of the air. the rate of entropy change of the air is kw/k.

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.

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above