Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems

Review Questions

Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

Review Questions: Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

REVIEW QUESTIONS

On Fluidics

1. What is fluidics? List the advantages and limitations of fluidic control system over the conventional alternate control systems.

2. List various fluidic devices. Explain any two of them.

3. What are fluid sensors? Explain the construction and working of any two of them.

4. With a neat fluidic logic circuit, explain how the control of air cylinder can be achieved using preferenced flip-flop.

5. Explain the fluidic sequencing control of two pneumatic cylinders with the help of a fluidic logic circuit. 

[A.U., Nov/Dec 2010] 

[Ans. Refer Section 15.6.2]

6. Illustrate a fluidic logic circuit that controls the continuous reciprocation of a double- rod-ended hydraulic cylinders.

On Programmable Logic Control System

7. (i) How does a PLC differ from microprocessor?

[A.U., Apr/May 2005] 

[Ans. Refer Section 15.8.3]

(ii) What are the advantages of programmable logic controller?

[A.U., Apr/May 2005] 

[Ans.  Refer Section 15.8.4]

8. Explain the working principle of a PLC with a neat block diagram.

[A.U., Apr/May 2005] 

[Ans.  Refer Section 15.10]

9. Draw the PLC ladder diagram for the following logic functions:

(i) AND, (ii) OR, (iii) NOR, and (iv) NAND.

10. Explain the PLC of a hydraulic cylinder, by constructing a PLC ladder logic diagram.

Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems : Tag: : Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics - Review Questions