The inherent characteristic of an equal percentage valve relating flow rate 'q'

Question

The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation

Options:

A . dq/dx = K

B . dq/dx = K.q

C . dq/dx = K/q

D . dq/dx = Kq²

Answer: Option A

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