Question

question 48
what distinguishes closed - loop systems from open - loop systems?
whether theres a feedback loop
whether theres more than one power source
whether the output is static or dynamic
whether the load is interchangeable

Explanation:

Closed - loop systems have a feedback loop that monitors and adjusts the output. Open - loop systems do not have this feedback mechanism. The presence or absence of a feedback loop is the key differentiator. The number of power sources, nature of output (static/dynamic), and interchangeability of load are not the fundamental distinguishing factors between closed - loop and open - loop systems.

Answer:

whether there's a feedback loop