2621: Which one of the following sets is correctly matched ?
(a) Diphtheria, Pneumonia and Leprosy : Hereditary
(b) AIDS, Syphilis and Gonorrhoea : Bacterial
(c) Colour blindness, Hemophilia and Sickle cell anaemia : Sex linked
(d) Polio, Japanese B encephalitis and plague : Viral
2622: What is the principle by which a cooling system (Radiator) in a motor car works ?
(a) Convection
(b) Conduction only
(c) Both conduction and radiation
(d) Radiation only
2623: Consider the following statements:
1. Assam shares a border with Bhutan and Bangladesh.
2. West Bengal shares a border with Bhutan and Nepal
3. Mizoram shares a border with Bangladesh and Myanmar
Which of the statements given above are correct?
(a) 1 and 2, only
(b) 2 and 3, only
(c) 1 and 3, only
(d) 1, 2 and 3
2624: Who is regarded as the greatest lawgiver of ancient India?
(a) Megasthanese
(b) Panini
(c) Manu
(d) Kautilya
2625: A car runs at a speed of 40 km per hour during the first half of the journey and at a speed of 60 km per hour during the second half of the journey. The average speed of the car is:
(a) 48 kmph
(b) 50 kmph
(c) 52 kmph
(d) 54 kmph