Which notation represents the feedback path in closed loop system representation?

Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output?

A. Input signal

B. Output signal

C. Error signal

D. Feedback signal

Which among the following is not an advantage of an open loop system?

A. Simplicity in construction & design

B. Easy maintenance

C. Rare problems of stability

D. Requirement of system recalibration from time to time

Which among the following represents an illustration of closed loop system?

A. Automatic washing machine

B. Automatic electric iron

C. Bread toaster

D. Electric hand drier

How is an output represented in the control systems?

A. r(t)

B. c(t)

C. x(t)

D. y(t)

The output is said to be zero state response because ______conditions are made equal to zero.

A. Initial

B. Final

C. Steady state

D. Impulse response