1- What are the basic components of a control system? 2- Explain how control valves are work. 3- What is the difference between feedback and feedforward control system? 4- What are the types of controllers. 5- Explain how you select the action of control valve. 6- Define the following: control valve time constant, sensor/transmitter time constant, control system signals, transducer, control valve gain. 7- Use LaPlace transformation to solve the following ODE d2y/dt2+2dy/dt+y=5u(t),y(0)=0,dy/dt(0)=0