Question

Which of the following is an example of an open loop system?

(a) Household Refrigerator

(b) Respiratory system of an animal

(c) Stabilization of air pressure entering into the mask

(d) Execution of program by computer

I have been asked this question during an online exam.

This interesting question is from Differential Equations of Physical Systems and Dynamics of Robotic Mechanisms topic in portion Mathematical Models of Physical Systems of Control Systems

Answer 1

Right choice is (d) Execution of program by computer

Easy explanation: Execution of a program by a computer is an example of an open loop system as the feedback mechanism is not taken by the computer program and set programs are used to get the set output.