Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems
Two marks questions and answers
Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics
Two marks questions and answers: Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics
TWO MARKS QUESTIONS AND ANSWERS 1. Define ‘pneumatics'. The pneumatics may be defined as that branch of engineering-science which deals with the study of the behaviour and application of compressed air. 2. Why is air used as the fluid medium in all pneumatic systems? The air is popularly used as the fluid-medium in pneumatic systems due to the following reasons: (i) Air is abundantly available. (ii) It is safe to use (as it has the fire-proof characteristics). (iii) It is very cheaper in cost. (iv) Easier maintenance and easily handling. (v) It can be exhausted easily to the atmosphere after use. 3. 'Pneumatic systems cannot provide precise actuator control'—Why ? Due to the high compressibility of air pneumatic systems cannot provide precise actuator control. 4. 'Pneumatic systems cannot be applied to high-pressure application'—Why ? Due to compressor design limitations, pneumatic systems can be applied only to low- pressure (less than 17 bars) applications. 5. For what type of application, you would prefer to use pneumatic systems rather than hydraulic systems. If the application requires speed, a medium amount of pressure, and only a fairly accurate feed, then pneumatic system can be used.
Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems : Tag: : Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics - Two marks questions and answers
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation