Q. Who among the following was the first known person in the world to have devised the ‘Ship’s camel’?

[A] Akbar

[B] Ashoka

[C] Allauddin Khilji

[D] Krishnadevaraya

Answer: A
Notes:

Akbar is also the first known person in the world to have devised the ‘ship’s camel’, a barge on which the ship is built to make it easier for the ship to be carried to the sea.  

Some mechanical devices like the screw for tightening, manually driven belt-drill for cutting diamonds were in use. 

Source: Tamil Nadu state board.