Question

What type of transmission line is used to intentionally delay the signal?

(a) Parallel lines

(b) Serial lines

(c) Delay lines

(d) Transit lines

This question was posed to me by my school principal while I was bunking the class.

This key question is from Transmission Line Basics topic in portion Transmission Lines of Avionics

Answer 1

The correct answer is (c) Delay lines

For explanation I would say: A signal applied at one end of a line appears some time later at the other end of the line. This is called the time delay or transit time for the line. A transmission line used specifically for the purpose of achieving delay is called a delay line.