PART – I (MCQs) (COMPULSORY)

Q.1. Select the best option/answer and fill in the appropriate box on the Answer Sheet. (50 Marks)

1. Persons with the following blood group are considered to be universal recipients:

(a) A+
(b) B+
(c) AB+
(d) O+
(e) None of these

2. Study of life in outer space is known as:

(a) Endobiology
(b) Exobiology
(c) Enterobiology
(d) Neobiology
(e) Microbiology

3. The name of the common mineral salt present in sweat is:

(a) Calcium Oxalate
(b) Potassium Sulphate
(c) Sodium Chloride
(d) Iron Sulphide
(e) None of these

4. The sensitive layer of the eye is:

(a) Choroid
(b) Sclerotic
(c) Retina
(d) Cornea
(e) None of these

5. Laughing gas has the chemical composition of the following two elements:

(a) Nitrogen + Hydrogen
(b) Nitrogen + Carbon
(c) Nitrogen + Oxygen
(d) Oxygen + Carbon
(e) None of these

6. Dr. Abdus Salam of Pakistan was one of the contributors to the unification of:

(a) Electromagnetic force and gravitational force
(b) Electromagnetic force and weak nuclear force
(c) Gravitational force and weak nuclear force
(d) Weak nuclear force and strong nuclear force
(e) None of these

7. Which triplet in DNA codes for valine?

(a) CTT
(b) AGU
(c) CAT
(d) AAT
(e) None of these

8. What is the chance of a diabetic baby being born to parents who are both heterozygous normal?

(a) Zero
(b) 1/4
(c) 1/2
(d) 3/4
(e) None of these

9. Which of the following is not a part of Darwinism?

(a) Overproduction
(b) Natural selection
(c) Inheritance of acquired characters
(d) Competition for survival
(e) None of these

10. The role of biotechnology in the production of food is based on:

(a) Decomposition
(b) Respiration
(c) Digestion
(d) Fermentation
(e) None of these

11. Which form of drug abuse involves the greatest risk of infection with the HIV (AIDS) virus?

(a) Cigarette smoking
(b) Using alcohol
(c) Injection of heroin
(d) Taking too much aspirin
(e) None of these

12. The founder of modern astronomy was:

(a) Archimedes
(b) William Gilbert
(c) Nicolas Copernicus
(d) Michael Faraday
(e) None of these

13. The instrument used to measure very high temperatures is:

(a) Manometer
(b) Thermostat
(c) Chronometer
(d) Pyrometer
(e) None of these

14. The science which deals with the study of the manners and customs of peoples is:

(a) Ethnology
(b) Morphology
(c) Ethics
(d) Genetics
(e) None of these

15. Chemicals used to kill rats and mice are called:

(a) Insecticides
(b) Rodenticides
(c) Fungicides
(d) Herbicides
(e) None of these

16. Dry ice is:

(a) Methane hydrate
(b) Liquid nitrogen
(c) Solid carbon dioxide
(d) Frozen water
(e) None of these

17. The chemical name of vinegar is:

(a) Sodium Nitrate
(b) Dilute Acetic Acid
(c) Chloride of Lime
(d) Calcium
(e) None of these

18. Deficiency of the following vitamin decreases haemoglobin production:

(a) Biotin
(b) Thiamine
(c) Niacin
(d) Pyridoxine
(e) None of these

19. A hygrometer is used for measuring the:

(a) Speed of sound
(b) Density of milk
(c) Humidity of air
(d) Specific gravity of liquids
(e) None of these

20. Bronze is an alloy of:

(a) Copper and Zinc
(b) Tin and Zinc
(c) Copper and Tin
(d) Iron and Zinc
(e) None of these

21. Which of the following is most elastic?

(a) Steel
(b) Rubber
(c) Glass
(d) Sponge
(e) None of these

22. The orbital period of the planet Mercury around the Sun is:

(a) 88 days
(b) 365 days
(c) 2 years
(d) 98 days
(e) None of these

23. The most splendid and magnificent constellation in the sky is:

(a) Orion
(b) Columba
(c) Canis Major
(d) Taurus
(e) None of these

24. “Black holes” refer to:

(a) Holes occurring in heavenly bodies
(b) Bright spots on the Sun
(c) Collapsing objects of high density
(d) Collapsing objects of low density
(e) None of these

25. Eugenics is the study of:

(a) Altering human beings by changing their genetic components
(b) People of European origin
(c) Different races of mankind
(d) Genetics of plants
(e) Eunuchs

26. The position of Earth in its orbit, when it is at its greatest distance from the Sun, causing northern summer, is called:

(a) Aphelion
(b) Perihelion
(c) Perigee
(d) Apogee
(e) None of these

27. Diamond is a very expensive ornament. It is composed of a single element:

(a) Carbon
(b) Gold
(c) Silver
(d) Platinum
(e) None of these

28. Which of the following layers makes radio transmission possible?

(a) Troposphere
(b) Ionosphere
(c) Mesosphere
(d) Stratosphere
(e) None of these

29. Which of the following explains the reason why there is no total eclipse of the Sun?

(a) Size of the Earth in relation to that of the Moon
(b) Orbit of the Moon around the Earth
(c) Direction of rotation of the Earth around the Sun
(d) Area of the Sun covered by the Moon
(e) None of these

30. Television signals are converted into light signals by:

(a) Optical fibre
(b) Transistor
(c) Decoder
(d) Photodiode
(e) None of these

31. Where do most asteroids lie?

(a) In the asteroid belt between the orbits of Mars and Jupiter
(b) In the asteroid belt between the orbits of Mars and Venus
(c) In the asteroid belt between the orbits of Jupiter and Venus
(d) Everywhere in the sky
(e) None of these

32. The number of spark plugs needed in a diesel engine is:

(a) 2
(b) 3
(c) 0
(d) 4
(e) None of these

33. The half-life of a radioactive element is 8 days. How long will it take to reduce it from 10 mg to 5 mg?

(a) 4 days
(b) 12 days
(c) 16 days
(d) 8 days
(e) None of these

34. The term “Blue Shift” is used to indicate:

(a) The Doppler effect in which an object appears bluer when it is moving towards the observer, or the observer is moving towards the object
(b) Turning a star from white to blue
(c) In the future, the Sun would become blue
(d) A black hole was blue at its start
(e) None of these

35. Kilowatt-hour is a unit of:

(a) Power
(b) Electric current
(c) Energy
(d) Time
(e) None of these

36. Fuel used in a Fast Breeder Reactor is:

(a) Uranium Oxide
(b) Uranium-Plutonium Carbide
(c) Uranium-Plutonium Oxide
(d) Uranium-Thorium Oxide
(e) None of these

37. Monsoon is caused by:

(a) Seasonal reversal of winds
(b) Revolution of the Earth
(c) Movement of the clouds
(d) Rise in temperature
(e) Rain forests

38. Which of the following atmospheric layers helps in radio communication?

(a) Exosphere
(b) Ionosphere
(c) Troposphere
(d) Stratosphere
(e) Ozone layer

39. A moderator is used in a nuclear reactor in order to:

(a) Accelerate the neutrons
(b) Slow down the speed of the neutrons
(c) Increase the number of electrons
(d) Decrease the number of electrons
(e) None of these

40. Sedimentary rocks are:

(a) Porous
(b) Hard
(c) Rough
(d) Brittle
(e) Volcanic

41. Which one of the following is a non-metallic mineral?

(a) Manganese
(b) Magnesium
(c) Gypsum
(d) Bauxite
(e) None of these

42. The ozone layer prevents the following radiation from entering the atmosphere:

(a) Infrared
(b) Ultraviolet
(c) X-rays
(d) Gamma rays
(e) None of these

43. The phenomenon of Aurora Borealis, the display of red and green lights in the Northern Hemisphere, is due to radiations from:

(a) Ionosphere
(b) Troposphere
(c) Mesosphere
(d) Stratosphere
(e) None of these

44. Yeast is used in making bread because it produces:

(a) Carbon dioxide
(b) Sugar
(c) Bacteria
(d) Oxygen
(e) None of these

45. Oasis is associated with:

(a) Glaciers
(b) Desert
(c) Islands
(d) Volcanoes
(e) Fertile land

46. Quartz crystal in quartz watches works on the principle called:

(a) Photoelectric effect
(b) Stark effect
(c) Thermionic effect
(d) Piezoelectric effect
(e) None of these

47. Fruits without seeds, like bananas, are called:

(a) Seedless fruits
(b) Parthenogenesis fruits
(c) Parthenocarpic fruits
(d) Placental fruits
(e) Organic fruits

48. An animal which captures and readily kills living animals for its food is called:

(a) Parasite
(b) Scavenger
(c) Predator
(d) Mammal
(e) None of these

49. In a railway track, two rails are joined end to end with a gap between them because:

(a) Steel can be saved
(b) Accidents due to contraction in winter can be avoided
(c) Air gaps are necessary for bearing the weight of a running train
(d) Accidents due to expansion in summer can be avoided
(e) All of these

50. Name the famous book of Ibn Sina in which he discussed human physiology and medicine:

(a) Al-Qanoon
(b) Al-Masudi
(c) New Renaissance
(d) Tadhkira
(e) None of these