Question

Which of the following from the options is included in the system to facilitate playback and study of EMG sound waveforms at a later convenient time?

(a) Tape Recorder

(b) Preamplifier

(c) Oscilloscope

(d) Ground Electrode

I have been asked this question during an interview for a job.

This interesting question is from Multi-Channel Wireless Telemetry System in portion Biomedical Telemetry of Biomedical Instrumentation

Answer 1

Right option is (a) Tape Recorder

To explain: The waveform can also be photographed from the CRT screen by using a synchronized camera. The tape recorder is included in the system to facilitate playback and study of the EMG sound waveforms at a later convenient time.