Page 105 - PNEUMATIC SYSTEM INSTRUMENT

ESSAY QUESTION

QUESTION 1

By using the given components in Table B1 below, construct, label and

briefly explain the working condition of a simple pneumatic circuit

design of OR Valve function.

No Components Quantity

1 5/2-way valve via pneumatic source 1

2 3/2-way valve via push button 2

3 Shuttle valve 1

4 Double acting cylinder 1

5 Pneumatic Pressure Source 1
Table B1

QUESTION 2

Figure B1 shows the doors of public vehicles. Assume that the opening

and closing of the doors are controlled by two button switches ON and
OFF. When the ON button is pressed, the doors will open. When the

OFF button is pushed, the doors will close. Draw and label the

pneumatic circuit diagram used to operate the doors and explain the

working principle of the circuit.

Figure B1

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