What is semaphore? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 Students CBSE Exams.

By gyaniq November 23, 2020 General Knowledge 0 Comments

What is semaphore?

Semaphore is a signalling system which uses pairs of flags. Different flag positions represent different letters and numbers. In the days before ships communicated via radio, it was used between shins sailing in close proximity to each other.

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