Correct Answer : Option (A) - China
China unveiled a maglev train capable of a top speed of 600 km/h, state media said 20-07-2021.
The maximum speed would make the train, self-developed by China and manufactured in the coastal city of Qingdao, the fastest ground vehicle globally.
Using electro-magnetic force, the maglev train "levitates" above the track with no contact between body and rail.
China has been using the technology for almost two decades on a very limited scale. Shanghai has a short maglev line running from one of its airports to town.
While there are no inter-city or inter-province maglev lines yet in China that could make good use of the higher speeds, some cities including Shanghai and Chengdu have started to conduct research.
With the ability to reach 600 km/h once it gets up to speed, it's estimated it would only take 2.5 hours to travel from Beijing to Shanghai by train — a journey of more than 1,200 kilometres.
The journey takes a comparable amount of time by plane and 5.5 hours by high-speed rail.