4491: A passing motorcycle causes distortion or disturbance with reception of signal in radio and T.V. The cause of this is
(a) The intense sound waves effect the small electronic devices of the receptor
(b) The vehicle's metal parts block/distort the radio waves
(c) The spark plug fitted in the engine produces electro-magnetic signals due to sparking
(d) Modern motor-cycles are fitted with electric ignition system which produces radio waves
4492: The original inhabitants of India are believed to be of the ethnic type known as
(a) Negrito
(b) Proto-Australoids
(c) Mongoloids
(d) Dravidians
4493: In making the saffron spice, which one of the following parts of the plant is used?
(a) Sepal
(b) Stigma
(c) Leaf
(d) Petal
4494: In which one of the following countries did hundreds of people die in year 2004 as a result of flooding and mudslides triggered by Tropical Storm Jeanne?
(A) Ghana
(B) Haiti
(C) Colombia
(D) Sudan
4495: To elect the President of India which one of the following election procedures is used?
(a) System of proportional representation by means of a single transferable vote
(b) Proportional representation through list system
(c) Collective voting system
(d) Secondary voting system