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  1. Engineering
  2. Mechanical Engineering
  3. all 3 questions please...

Question: all 3 questions please...

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3. Design and draw a cct sing the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A-B B- A+. The cylinders should park in the positions B - A +when the start switch is in the off position 4. Modify the circuit designed for question 3 to provide an emergency stop which will park both cylinders in the extended position (i.e. A B 5. Modify the circuit designed for question 3 to provide a fail safe. The fail safe should: (a) act in the event of a reduced pressure at inlet to the group selecting valve (b) park the cylinders in the retracted position

all 3 questions, please

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