Q3. (a) Explain open loop control system and closed loop control system with suitable examples (8)
(b) What are the merits and demerits of the two systems? (8)
Q9) (a) Sketch a nozzle/flapper device used for the generation of a pneumatic signal, labelling the component parts (10)
(b) Describe the operation of the device in (a) above (6)
Q2. Tank liquid level sensors are an integral part of ships. Describe with the aid of suitable sketches the working principle of: (a) Capacitive type level sensor (6) (b) Ultrasonic level sensor (5) (c) Float (5)
Q3. With reference to electronic control systems: a) Draw a simple block diagram for temperature control (8) b) Describe each component shown in the diagram in (a). (8)
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