Question

Assertion (A): Pneumatic actuators are not as messy as hydraulic ones.

Reason (R): Pneumatic suffer from leakages and inherent inaccuracies.

(a) Both A and R are true and R is 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 asked in an interview.

My doubt stems from Controller Components topic in portion Control System and Components of Control Systems

Answer 1

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

Explanation: Pneumatic actuators are the devices that convert the motion of air into measurable form of the energy and can also be used in low speed applications but they suffer leakages and inherent in accuracies.