681: In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?
(a) 9
(b) 12
(c) 18
(d) 14
682: In which one of the following countries is rupee its currency?
(a) Bhutan
(b) Malaysia
(c) Maldives
(d) Seychelles
683: Consider the following statements :
1. India launched its first full-fledged meteorological satellite (METSAT) in September 2002.
2. For the first time, the space vehicle PSLV- C4 carried a payload of more than 1000 kg into a geosynchronous orbit.
Which of these statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
684: What is Medecins Sans Frontieres (MSF)?
(a) An agency formed by the International Olympic Committee (IOC) to check misuse of drugs by sports persons
(b) A non-governmental organization which specialized in international humanitarian aid and emergency medical assistance.
(c) An organization to develop applications of nanotechnology in medicine
(d) An organization of medical practitioners funded by the European Union which carries out research against spread of AIDS
685: What is the difference between Bluetooth and Wi-Fi devices?
(a) Bluetooth uses 2-4 GHz radio frequency band, whereas Wi-Fi can use 2-4 GHz or 5 GHz frequency band
(b) Bluetooth is used for Wireless Local Area Networks (WLAN) only, whereas Wi-Fi is used for Wireless Wide Area Networks (WWAN) only
(c) When information is transmitted between two devices using Bluetooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other
(d) The statement (a) and (b) given above are correct in this context