3186: The length, breadth and height of a room are 1, b and h respectively. The perimeter of the ceiling expressed as a percentage of the total area of the four walls is
(a) 100 h
(b) 100/h
(c) h
(d) h/100
3187: Which one of the following scripts of ancient India was written from right to left?
(a) Brahmi
(b) Nandnagari
(c) Sharada
(d) Kharoshti
3188: The minute arm of a clock is 10 cm long. The number of minutes taken by the tip of the arm to travel a length of 10 cm is nearly equal to:
(a) 5
(b) 10
(c) 15
(d) 20
3189: The difference between a nuclear reactor and an atomic bomb is that
(a) no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
(b) the chain reaction in nuclear reactor is controlled
(c) the chain reaction in nuclear reactor is not controlled
(d) no chain reaction takes place in atomic bomb while it takes place in nuclear reactor
3190: As per the UN-Habitat's Report on Human Settlements 2009, which one among the following regions has shown the fastest growth rate of urbanization in the last three decades ?
(A) Europe
(B) Asia
(C) Latin America and Caribbean
(D) North America