Q. The best colours for a Sun umbrella will be -
1) white on top and black on inside
2) red on top and black on inside
3) black on top and white on inside
4) black on top and red on inside
Q. Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because -
1) barium is a good absorber of X-rays and helps stomach to appear clearly
2) barium salts are white in colour and this helps stomach to appear clearly
3) barium allows X-rays to pass through the stomach
4) barium salts are easily available
Q. The elements of a group in the periodic table-
1) are isobars
2) have consecutive atomic numbers
3) have similar chemical properties
4) are isotopes
Q. The pH of human blood is normally around-
1) 7.5-8.0
2) 4.5-5.5
3) 5.5-6.5
4) 8.5-9.0
Q. The pH of fresh groundwater slightly decreases upon exposure to air because -
1) carbon dioxide from air is dissolved in the water
2) oxygen from air is dissolved in the water
3) the dissolved oxygen of the groundwater escapes into air
4) the dissolved carbon dioxide of the groundwater escapes into air
Q. Which among the following countries has given a grant of US $ 1 billion for the reconstruction of the Nalanda University?
1) Japan
2) UK
3) USA
4) China
Q. Which one among the following is the fastest Indian Super-computer recently developed by ISRO?
1) Saga-220
2) Aakash-A1
3) Tianhe-1A
4) Jaguar-Cray
Q. Which one among the following vitamins is necessary for blood clotting?
1) Vitamin D
2) Vitamin A
3) Vitamin K
4) Vitamin C
Q. The Nehru-Mahalanobis strategy of development guided the planning practice in India from the-
1) Fourth Five-Year Plan to the Eight Five-Year Plan
2) First Five-Year Plan to the Sixth Five-Year Plan
3) Second Five-Year Plan to the Seventh Five-Year Plan
4) First Five-Year Plan to the Eight Five-Year Plan
Q. While a proclamation of emergency is in operation, the duration of the Lok Sabha can be extended for a period -
1) not exceeding nine months
2) not exceeding three months
3) of two years at a time
4) of one year at a time
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