Question

Basic elements of a strip chart recorder are ________

(a) chalk and board

(b) pen and pencil

(c) pencil and paper

(d) pen and chart paper

This question was addressed to me in an interview.

This is a very interesting question from Objectives and Requirements of Recording Data in portion Display Devices of Electrical Measurements

Answer 1

Correct option is (d) pen and chart paper

The explanation is: The basic elements of a strip chart recorder are pen and chart paper for recording data. Input data is recorded on a chart paper through the following methods:

• Pen and ink stylus

• Impact printing

• Chopper bar printing

• Thermal writing

• Electric writing

• Optical writing.