A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?

Question

Accepted Answer

Kc is reduced. A is correct because reducing the proportional gain (Kc) makes the controller less aggressive, leading to a larger steady-state error or offset. B is incorrect because increasing Kc generally reduces the offset for a proportional controller. C is incorrect because adding integral action typically eliminates the offset entirely. D is incorrect because adding derivative action usually improves stability and does not cause an increase in offset.