Q. Bronze is often used to make statues and medals whereas brass is used in making utensils, scientific apparatus and cartridges. Both brass and bronze are copper containing alloys, yet they differ in their chemical composition for additionally containing:
1) Zinc in brass and tin in bronze
2) Chromium in brass and nickel in bronze
3) Nickel in brass and tin in bronze
4) Iron in brass and nickel in bronze
Q. Which of the statements about glass are correct?
1. Glass is a super-cooled liquid having infinite viscosity
2. Violet coloured glass is obtained by adding MnO2
3. Glass is a man-made silicate
4. Glass is a crystalline substance
Select the correct answer using the code given below:
1) 1, 2 and 3
2) 1, 2 and 4
3) 2, 3 and 4
4) 1 and 3 only
Q. Which one among the following statements about stomach is not correct?
1) Stomach acts as a temporary reservoir
2) Stomach mixes food with gastric juice
3) Stomach secretes lipase and amylase in gastric juice
4) Rate of stomach emptying depends on the type of food
Q. Which one of the following organs break fat to produce cholesterol?
1) Intestine
2) Liver
3) Lungs
4) Kidneys
Q. Venkataraman Ramakrishnan was jointly awarded Nobel Prize in Chemistry in the year 2009 for the:
1) theory of electron transfer
2) studies of the structure and function of the ribosome
3) palladium catalysed cross couplings in organic synthesis
4) work in the area of olefin metathesis
Q. Which one among the following statements regarding cell is not correct?
1) Shape and size of cells are related to specific function
2) Some cells have changing shapes
3) Each cell has its own capacity to perform
4) Same type of cells are present in all body tissues
Q. Jet streams are usually found in the:
1) Ozonosphere
2) Mesosphere
3) Tropopause
4) Ionosphere
Q. The Narmada river in the Peninsular plateau flows westward with a remarkably straight channel. It is because the:
1) slope gradient in this part controls the river channel pattern.
2) river carries a huge amount of water which has created a straight channel course
3) river forms the boundary between the Central Highlands and the Deccan Plateau
4) river flows through the trough of a rift valley inclined westward
Q. Why the summer monsoon winds blow from south-western direction in the northern hemisphere?
1) The general direction of wind from the Indian Ocean is south-western
2) The presence of the the doldrums around the Equator
3) The low pressure conditions in northwest India
4) Due to the effect of Coriolis force
Q. Which one among the following is the best reason for the marked increase in the agricultural production in India in the past decades?
1) Increase in the area under cultivation
2) Conversion of barren land into agricultural land
3) Use of improved agricultural methods and technologies
4) Priority status given by the successive governments to agricultural sector over the industry sector
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