Question

A recorder is a device ________

(a) An indicating instrument which displays a time-varying signal

(b) Whose function is to record the value of the quantity as it is being measured

(c) Which records electrical and non-electrical quantities or relates two signals to each other as a function of time

(d) Which records the value of the quantity measured as well as the electrical and non-electrical quantities as a function of time

The question was asked by my college professor while I was bunking the class.

My question is from Advanced Problems on CRT and CRO in chapter Oscilloscopes of Electrical Measurements

Answer 1

Correct answer is (d) Which records the value of the quantity measured as well as the electrical and non-electrical quantities as a function of time

For explanation: A recorder is a device which record the value of quantity as it is being measured. It records electrical and non-electrical quantities or relates two signals to each other as a function of time.