Question

The primary use for Gray code is ___________

(a) Coded representation of a shaft’s mechanical position

(b) Turning on/off software switches

(c) To represent the correct ASCII code to indicate the angular position of a shaft on rotating machinery

(d) To convert the angular position of a shaft on rotating machinery into hexadecimal code

This question was addressed to me during an internship interview.

I want to ask this question from Code Converters in chapter Combinational Circuits of Digital Circuits

Answer 1

Correct answer is (a) Coded representation of a shaft’s mechanical position

The explanation is: Gray code is useful because only one bit changes at a time, which is implemented easily in Coded representation of a shaft’s mechanical position. In Gray Code, every sequence of successive bits differs by 1 bit only.