(problem 1.2 ˚astr¨om and murray) identify five feedback systems that you encounter in your everyday environment. for each system, identify the sensing mechanism, actuation mechanism and control law. describe the uncertainty with respect to which the feedback system provides robustness and/or the dynamics that are changed through the use of feedback.

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

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.