Q. Tetraethyl Lead (TEL) is added to petrol to -
1) Prevent freezing
2) Increase boiling point
3) Increase flash point
4) Increase anti-knocking rating
Q. We always see the same face of the moon because -
1) It is smaller than the earth
2) It revolves on its axis in a direction opposite to that of the earth
3) It takes equal time for both revolutions around the earth and rotation on its axis
4) It rotates at the same speed as the Earth around the sun
Q. When an electric bulb breaks, there is a mild bang due to -
1) The chemical reaction between the enclosed gases
2) The compressed gases rushed out suddenly
3) The air rushing in to fill the evacuated space
4) Some other reason
Q. What is the chief function of the UPSC?
1) To conduct examination for appointment to all India and Central Services
2) To Advise the President regarding the claim of civil servants for costs incurred in the course of execution of duties
3) To advise the President regarding disciplinary action against a civil servant
4) All the above
Q. The best fertilizer for plants is -
1) Compost
2) Ammonium sulphate
3) Super phosphate of lime
4) Urea
Q. Which of the following powers is exclusively vested in the Rajya Sabha?
1) To initiate impeachment proceedings against the President
2) To recommend the creation of new All India Services
3) To remove the Vice- President
4) All the above power
Q. The most abundant source of iron is -
1) Milk
2) Green vegetables
3) Eggs
4) Beans
Q. The concept of Total Fertility Rate (TFR) in population means -
1) The average number of children born to a woman during her lifetime
2) The average number of children born to an adult male during his lifetime
3) The average number of children born in family
4) The average rate of growth of population
Q. A chemical reaction that takes place with the evolution of heat is called a/an -
1) Reversible reaction
2) Endothermic reaction
3) Thermal reaction
4) Exothermic reaction
Q. The bacteria responsible for nitrogen fixation is found in the roots of -
1) Grass
2) Citrus plants
3) Leguminous plants
4) Neem tree
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