416: An objective of the National Food Security Mission is to increase the production of certain crops through area expansion and productivity enhancement in a sustainable manner in the identified districts of the country. What are those crops ?
(a) Rice and Wheat only
(b) Rice, Wheat and pulses only
(c) Rice, wheat, pulses and oil seeds
(d) Rice, Wheat, pulses, oil seeds and vegetables
417: A Person has to completely put each of three liquids : 403 litres of petrol, 465 litres of diesel and 496 litres of the Mobil Oil in bottles of equal size without mixing any of the above three types of liquids such that each bottle is completed filled. What is the least possible number of bottles required ?
(A) 46
(B) 34
(C) 44
(D) None of the above
418: A hemispherical bowl is filled to the brim with a beverage. The contents of a bowl are transferred into a cylindrical vessel whose radius is 50% more than its height. If the diameter is same for both bowl and cylinder, then the volume of the beverage in the, cylindrical vessel will be
(a) 66(2/3)%
(b) 78½%
(c) 100%
(d) more than 100% (that is, some liquid will still be left in the bowl)
419: The deficiency of Vitamin D causes:
(a) Rickets
(b) Night blindness
(c) Pellagra
(d) Scurvy
420: Microbial fuel cells are considered a source of sustainable energy, Why ?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
Which of the Statements given above is/are correct?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3