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.
Related posts:
GK Question "How Do We Make Chewing Gum?" general knowledge book English 2021 current affairs quiz a...
General Knowledge
Who invented the elevator? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
What are ductile and transition metals? Complete General Knowledge Question and Answer for Class 6, ...
General Knowledge
Do you know “Asia's largest mandi”.
Do you know
Why are port and starboard so called? Complete General Knowledge Question and Answer for Class 6, 7,...
General Knowledge
Why do people blink their eyes? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9,...
General Knowledge
Do you know “Dua's layer”.
Do you know
What are scallops? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
Which was the biggest carnivore? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
What is yellow fever? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
GK Question "How Did The System Of Counting Originate?" general knowledge book English 2021 current ...
General Knowledge
Do you know “Taj-ul-Masjid is among the largest mosques”.
Do you know
Do you know “An introduction to one of the translated poems reads”.
Do you know
GK Question "Do You Know, As To, Where Did The Ice Cream Originate?" general knowledge book English ...
General Knowledge
Do you know “Building a secular India”.
Do you know
GK Question "Who Made The Discovery Of Electricity?" general knowledge book English 2021 current aff...
General Knowledge
GK Question "Do You Know, That A Cow Chews Its Cud?" general knowledge book English 2021 current aff...
General Knowledge
What is a tornado?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
How did small dinosaurs defend themselves from enemies? Complete General Knowledge Question and Answ...
General Knowledge
Why does ice float? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and ...
General Knowledge
