2556: If the product of two numbers is 320 and their ratio is 1 : 5, what is the difference between the squares of these two numbers ?
(a) 1024
(b) 1365
(c) 1536
(d) 1635
2557: For election to the Lok Sabha, a nomination paper can be filed by
(a) anyone residing in India.
(b) a resident of the constituency from which the election is to be contested.
(c) any citizen of India whose name appears in the electoral roll of a constituency.
(d) any citizen of India.
2558: Galvanising of sheet iron is done by dipping the sheet metal into molten
(a) Mercury
(b) Cadmium
(c) Lead
(d) Zinc
2559: The term 'Domestic Content Requirement' is sometimes seen in the news with reference to
(a) Developing solar power production in our country
(b) Granting licenses to foreign T.V. channels in our country
(c) Exporting our food products to other countries
(d) Permitting foreign educational institutions to set up their campuses in our country
2560: In a dry cell (battery), which of the following are used as electrolytes?
(a) Ammonium chloride and Zinc chloride
(b) Sodium chloride and Calcium chloride
(c) Magnesium chloride and Zinc chloride
(d) Ammonium chloride and Calcium chloride