251. Sergei Bubkha; an athlete of international repute; belongs to which country?
Ukraine
252. At the time of short-circuit, what will be the current in the circuit?
Increases heavily
253. First Telephone line was started between Kolkata and Diamond Harbour?
1851
254. In Vallisnaria pollination occurs by?
Water
255. Who is the inventor of Sewing Machine?
Issac Singer
256. Activated charcoal is employed to remove colouring matter from pure substance; it work?
Adsorption
257. Who is the author of “Kapal Kundala”?
Bankim Chandra Chatterjee
258. Who earned the title of a 'Liberator' ?
Ashoka
259. ‘Man-The Maker of His Own Destiny’ book was written by which person?
Swami Vivekananda
260. Hydraulic brakes and "Hydraulic lift" are devices, why are fluids used in them?
For transmitting pressure