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)
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