1. Water enters into a tank through a pipe. At the same time, a certain amount of water is output from the tank continuously. You are required to design a water level control system so that the level of water in the tank is kept constant at all times. Draw a sketch of a suitable control system. Explain what types of sensors you will be using in the design.
2 What is a paddlewheel? Explain the operation principles of a paddlewheel liquid flow meter. What are the advantages and disadvantages of this sensor?
3. Compare the vane based anemometer and the hot air anemometer. Which one would you choose to measure the air flow through a narrow pipe?
4. Explain the factors that should be considered before purchasing and using a sensor.