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Assertion (A): It is all but impossible to design a practical fluid power system without some means of controlling the volume and pressure of the fluid. Reason (R): It is controlled and done by valves.

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Assertion (A): It is all but impossible to design a practical fluid power system without some means of controlling the volume and pressure of the fluid.

Reason (R): It is controlled and done by valves.

(a) Both A and R are true and R is not correct explanation of A.

(b) Both A and R are true but R is not correct explanation of A.

(c) A is true but R is false

(d) A is false but R is true

The question was posed to me in an online quiz.

This is a very interesting question from Robotic Control System in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems

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Correct answer is (a) Both A and R are true and R is not correct explanation of A.

The explanation: Valves is defined as any device by which the flow of liquid can be controlled by obstructing the flow of liquid and is all but impossible to design a practical fluid power system without some means of controlling the volume and pressure of the fluid.

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