Atif Pedia

01. Jupiter is the fifth planet from the sun. It is named after the greatest of the roman gods. It is much bigger than Earth. About how many earths would equal to one jupiter ?

a. 100
b. 500
c. 700
d. 1000

02. Physicists have known about these high energy invisible rays for 80 years , but their precise nature is still a mystery. they come from unknown parts. they pack a mean energy. And they seem to break the laws of physics. Name them.

a. X-rays
b. UV-rays
c. Visible rays
d. Cosmic rays

03. Faster than a speeding bullet, more powerful than a supernova, able to crush small planets with a single swipe these are primordial, angel-hair thin cracks in the structure of the space. Name them

a. Cosmic strings
b. Saturn rings
c. Newton`s rings
d. Black holes

04. Name the instrument which is used to measure the speed of an aircraft relative to the speed of sound.

a. Speedometer
b. Altimeter
c. Telemeter
d. Machmeter

05. A layer of Ozone in the stratosphere protects the earth by blocking most of the sun`s harmful ultraviolet light. These are high energy radiations. Which of the following can have the potential effect of UV light.

a. Eyes
b. Skin
c. Crops
d. All the above

06. For growth , Viruses require

a. Dead host
b. Living host
c. Minerals
d. Simple sugars

07. In which of the following are Mitochondria absent ?

a. Fungi
b. Andiosperms
c. Green algae
d. Blue-green algae

08. Eucaryotic organisms are those that contains

a. DNA threads
b. Plastids
c. True nucleus
d. Vacuoles

09. The merismatic cells are

a. Thin walled
b. Isodiametric
c. Richly protoplasmic
d. All of above

10. The deficiency of which of the following micronutrients causes the death of the stem and root apices ?

a. Boron
b. Copper
c. Manganese
d. Zinc

11. Plant development is influenced by

a. Quality of light
b. Quality and quantity of light
c. Quality and duration of light
d. Quality , quantity and duration of light

12. Critical day length Varies from plant to plant and lies between

a. 6 to 100 hours
b. 8 to 12 hours
c. 10 to 14 hours
d. None of above

13. ATP is

a. An enzyme
b. A hormone
c. A protein
d. A molecule containing high energy bonds

14. The primary producers of organic matter in nature are

a. Bacteria
b. Fish
c. Green plants
d. Human beings

15 . Edible part of tomato is

a. Endocarp
b. Fleshy thalamus
c. Mesocarp
d. Whole fruit

16. Who amongst the following, started in 1850, a scientific approach to determine the role of mineral elements in the healthy growth and development of plants ?

a. Arnon and Knop
b. Sachs and Knop
c. Sachs and Stout
d. Arnon and Stout

17. The primary plant body consists of how many tissue systems ?

a. 2
b. 3
c. 4
d. 5

18. Bamboo is a

a. Herb
b. Grass
c. Shrub
d. Three

19. Cork cells are impervious to water because of the presence of

a. Cellulose
b. Cutin
c. Lignin
d. Suberin

20 . Ethylene is a hormone concerned with

a. Respiration
b. Ripening of fruits
c. Cell division
d. None of the above

21. The cavity of Ascaris is known as

a. Ceolom
b. Haemocoel
c. Pseudocoel
d. Visceral cavity

22. Crura-cerebri is found in

a. Fore-brain
b. Hind-brain
c. Mid-brain
d. None of above

23. Man is

a. Biothermic
b. Homoiothermic
c. Oilgothermic
d. Poikilothermic

24. The compound eye of insect produces

a. Binocular vision
b. Monocular vision
c. Mosaic vision
d. None of above

25. The post embryonic stages in the life history of cockroach is known as

a. Caterpillar
b. Grubs
c. Larval
d. Nymohs

26. Which of the following control the reflex action in the body ?

a. Central nervous system
b. Motor nerves
c. Sensory nerves
d. sympathetic nervous system

27. The terminal part of vertebral column in man is called

a. Telson
b. Urostyle
c. Coceyx
d. Pygostyle

28. The life history of human malarial parasite in Anopheles was first described by

a. Grassi and his pupil
b. Sir Patrick Manson
c. Sir Ronald Ross
d. Richard Pfeiffer

29. The " Urinary system " of the body consists of how many organs ?

a. 2
b. 3
c. 4
d. 5

30. Haryersion canals are present in

a. Bone
b. Cartilage
c. Kidney
d. Liver

31. The gestation period of human being is

a. one month
b. five months
c. seven months
d. Nine months

32. RNA differs from DNA in containing

a. Cytocine
b. Deoxyribose
c. Ribose
d. Phosphate

33. The first heart is produced when

a. Bisuspid and tricuspid close quickly
b. Semilunar value snaps shut
c. Intraventricular pressure decreases
d. Diastole begins

34. Who discovered the blood group of man ?

a. Edward Jenner
b. Larven
c. Kari Landsteiner
d. William Harvey

35. Which of the following glands has both an endocrine and an exocrine function ?

a. Adrenal
b. Mammary
c. Pancreas
d. Thyroid

36. Radio carbon dating is used to find the age of

a. Fossils
b. Buildings
c. Rocks
d. Babies

37. Geiger Counter is an instrument

a. Determine the heart beat rate
b. To detect radioactive radiation
c. To measure intensity of visible light
d. To count the baggage of an airport

38. The instrument used in a submarine to see the object on the surface of water is

a. Periscope
b. Telescope
c. Kaleidoscope
d. Microscope

39. Three primary colours used in the colour TV are

a. Green-yellow-blue
b. Yellow-blue-red
c. Red-green-yellow
d. Green-blue-red

40. Anemometer is used to measure

a. Wind gustiness
b. Wind direction
c. Wind speed
d. Vertical variation of wind speed

41. Which of the following gives the correct indication of composition of bronze ?

a. Copper and tin
b. Iron and zinc
c. Copper and silver
d. Lead and oxygen

42. The hardest of all metals is

a. Gypsum
b. Diamond
c. Topaz
d. Corundum

43. In electrolysis , the reaction at anode is

a. Ionisation
b. Polymerization
c. Reduction
d. Oxidation

44. Carbon dioxide is a good fire extinguisher because

a. It is a combustible gas
b. it excludes air from the flames
c. It lowers the killing temperature
d. It is plentiful

45. If a body is moved from equator to pole on the mean sea level , then its weight

a. Decrease always
b. Increases always
c. Constant
d. None of above

46. To an astronaut in the spacecraft , the sky appears to b

a. Blue
b. White
c. Dark
d. Red

47. When a ship enters a sea from a river , Its portion under water will

a. Increase
b. Decrease
c. Show no change
d. Increase and decrease alliteratively

48. Kilowatt is the unit of

a. Voltage
b. Power
c. Resistance
d. Current

49. The sun derives its energy from

a. Nuclear fission reactions
b. Nuclear fusion reactions
c. Oxidation of helium
d. Fission of noble metals

50. Which of the following is useful in the chemistry of photography ?

a. Silver bromide
b. Aluminum hydroxide
c. Sodium chloride
d. Potassium nitrate

Answers

01. d , 02. d , 03. a , 04. d , 05. d
06. b , 07. d , 08. c , 09. d , 10. a
11. d , 12. c , 13. d , 14. c , 15. d
16. b , 17. b , 18. b , 19. d , 20. b
21. a , 22. c , 23. b , 24. c , 25. d
26. a , 27. c , 28. c , 29. b , 30. a
31. d , 32. c , 33. d , 34. c , 35. c
36. a , 37. b , 38. a , 39. d , 40. a
41. a , 42. b , 43. d , 44. b , 45. b
46. a , 47. b , 48. b , 49. b , 50. a

1. What is the approxiate mean distance that separates the sun from the earth?

a. 1600,90,000 kms
b. 1480,00,000 kms
c. 1500,00,000 kms
d. 1890,70,000 kms

2. The outer surface of the sun is called ?

a. Thermosphere
b. Lithosphere
c. Lonosphere
d. Photosphere

3. Which planet has the maximum number of satellites?

a. Mars
b. Mercury
c. Venus
d. Jupiter

4. What is a light year?

a. The year marked by extraordinary amount of radiation of sleight
b. The year marked by the extraordinary less amount of radiation of sunlight reaching the earth due to protracted cloudy weather on earth making that year lighter than the normal
c. The year in which the sun radiates more light making one complete extra day in february
d. The distance travelled by light in 01 year.

5. What are Red Giants?
a. Stars which appear red because of their consuming a portion of their hydrogen.
b. The cluster of giant sized stars visible near mars
c. Stars which consume some of their oxygen and thus appear red due to lack of O2
d. Powerful communist countries.

6. What are asteriods?
a. Piece of falling stares
b. Satellite ofother planets
c. Very small planet revolving around the sun
d. Rocks found on the moon

7. What is the temperature at the centre of the sun?
a. 6 million k
b. 10 million k
c. 12 million k
d. 20 million k

8. The phase of moon are partially the result of the ?
a. Changes in the shape of the moon
b. Revolution of the moon about the earth
c. Variation in the moon's gravitation
d. Variation in the speed of rotation of the moon

9. Constellations referred to as Zodiac are ?
a. Imaginary region that encompass the path of the planets
b. Signs of Roman god
c. A group of stars
d. None

10. The height of a geo-stationary satellite from the surface of the earth is about ?
a. 360 km
b. 3600 km
c. 23000 km
d. 360,000 km

11. Which of the following explain the reasons why there is no total eclipse of the sun?
a. Area of the sun covered by the moon
b. Direction rotation around the sun
c. Orbit of moon around the sun
d. Size of earth in relation to that of moon

12. The instrument used to measure the specific gravity of milk is?
a. Barometer
b. Hygrometer
c. Lactometer
d. None of these

13. The internal antenna of transistor set is made of ?
a. Iron
b. Ferror Chrome
c. Copper
d. Alnico

14. Gerontology is the study of ?
a. Process of ageing
b. Growth of cells
c. Birds
d. Vegetables

15. Helium is used for respiration in deep water instead of nitrogen because
a. It is heavier than nitrogen
b. It is higher than nitrogen
c. It mixes less in blood than nitrogen
d. It helps oxygen to burn more quickly

16. In a fluorescent tube which of the following components are found?
a. Mercury vapour
b. Argon and carbon dioxide
c. Helium and oxygen
d. Argon and neon

17. The common ore of aluminium is ?
a. Chromite
b. Cryolite
c. Bauxite
d. Monazite

18. When one enters a dark room, he is not able to see anything but, after sometime vision improves. This is because ?
a. The retina of the eye comes forward
b. The retina of the eye moves backward
c. The pupil of the eye contracts
d. The pupil ofthe eye dilates

19. Radio carbon dating is used to find the age of ?
a. Fossils
b. Building
c. Rocks
d. Babies

20. What is periscope used for ?
a. To survey the ships on the surface of the sea when the submarine is under water
b. To extinguish fire
c. To measure purity of milk
d. None of the above

21. Seismology is the science of ?
a. Silkworm breeding
b. Earthquakes
c. Atmospheric phenomenon
d. Study of fossils

22. The source of solar energy is ?
a. Light energy
b. Gravitational energy
c. Kinetic energy of rotation of sun
d. Nuclear energy

23. If an object is placed midway between two parallel plane mirrors facing each other, then the number of images that appear in mirrors is
a. Four
b. Infinite
c. Two
d. Zero because the images will cancel each other

24. In vacuum , What will be common among X rays visible light , radiowaves
a. Amplitude
b. Frequency
c. speed
d. wavelength

25. Barometer is used to measure
a. Atmospheric pressure
b. Humidity
c. Rainfall
d. Temperature

26. If u use a microscope to watch smoke particles in still air, u ll see them moving about all the time. This phenomenon is called ?
a. Brownian movement
b. Osmosis
c. Tyndall effect
d. Diffusion

27. The mass of a neutron is approximately
a. Equal to the mass of proton
b. Three times the mass of a proton
3. Twice the mass of a proton
4. Zero

28. The spherical shape of rain drops is due to
a. Atmospheric friction of air
b. Gravity of spherical earth
c. Surface tension of rain water
d. Viscosity of rain water

29. Galvanometer is an instrument
a. For measuring volume change in chemical reactions btw gases
b. For measuring currents of small magnitude
c. Which prints automatically messages sent from one place to another
d. For recording high temperature from a distance

30. Which of the following has highest frequency?
a. Gamma rays
b. Microwaves
c. Light waves
d. Radio waves

31. If an iron is marked 750 watts by 250 volts, then it was designated to take a current of
a. 3 Amperes
b. 9 Amperes
c. 6 Amperes
d. 15 Amperes

32. The blue colour of the sky is due to
a. Polarization of light
b. Scattering of light
c. Reflection of light
d. None of these

33. Geiger counter is an instrument
a. Determine the heart beat rate
b. To detect radioative radiation
c. To measure intensity of visible light
d. To count the baggage of an airport

34. When we are looking at a rainbow in front of us, The sun must be
a. high in the sky and is located either on our rigght or left
b. In front of us
c. Behind us

35. When as the satellite is in thhe geostationary orbit , its
a. Orbital distance is equal to the radius of the earth
b. Acceleration is zero
c. Orbital period is about 24 hours
d. Angular velocity is zero

36. The most intense man-made light souce is
a. Master
b Laser
c. Mercury Vapour Lamp
d. Light emitting diode (LED)

37. How many calories will b needed to raise the temperature of 10 grams of water from 200 to 3000?
a. 1
b. 10
c. 100
d. 200

38. The branch of biological science " Ecology " deals with the study of
a. Plants in relation to their environment
b. Animals in relation to plants
c. All living things in relation to their environment
d. Animals in relation to their environment

39. The film of oil and soapy water owe their brilliant colours to a combination of light reflection and
a. Refraction
b. Polarization
c. Diffraction
d. Interference

40. The solar ultraviolet rays fo not harm living organism because
a. The ozone layer of the atmosphere weakens them
b. They are weak rays
c. They have to pass through a thich column of the atmosphere
d. The atmospheric nitrogen dilutes them

41. Most important effect of moon on earth is that
a. Gives light
b. Causes earthquake
c. Causes solar & lunar eclipse
d. Effects tides of ocean

42. The term " Meteor" is applied to an interplanetary body,
a. Before it enter the earth`s atmosphere
b. After it enters the earth`s atmosphere
c. After it centers the earth`s atmosphere
d. After it centers the earth`s atmosphere and lands on the surface of the earth without exploding in mid air

43. Newton`s rings are
a. Celestial body named by newton
b. Rings presented to newton by a king
c. An optical phenomenon
d. Coloured rings observed around the point of contact of a convex lense

44. The heat recieved by earth from the sun is known as
a. Insulation
b. Solar heat
c. Solar radiation
d. Thermal radiation`s

45. Constellation is
a. Configuration of fixed stars resembling a figure
b. Group of satellites
c. Group of comets
d. None of above

46. Which of the following part of the atmosphere is nearest to the earth
a. Troposphere
b Stratosphere
c. Lonosphere
d. Mesosphere

47. To an astronaut in space sky looks
a. Deep blue
b. White
c. Black
d. Orange red

48. Why does the sun looks oval when it is at the horizon ?
a. When the sun is at the horizon rays from the longer edge are refracted more coz it passes through greater thickness of air so vertical diameter is shortened to give an oval shape
b. When at the horizon sun is pulled by other planets and becomes elongated
c. While setting or rising sun is elliptical
d. None of these

49. The moon has period of rotation which is equal to period of revolution . It is
a. 29 days, 7 hours , 43 min , 1147 sec
b. 20 days, 6 hours , 50 min , 20 sec
c. 31 days, 8 hours , 42 min , 10 sec
d. None of these

50. The composition of the sun is
a. hydrogen 90% , Helium 8% , Heavy elements 2%
b. hydrogen 95% , Helium 3% , Heavy elements 2%
c. hydrogen 80% , Helium 10% , Heavy elements 10%
d. None of above

Answers

1. b , 2. d , 3. d , 4. d , 5. a
6. c , 7. d , 8. b , 9. a , 10. b
11. a , 12. c , 13. b , 14. a , 15. a
16. a , 17. a , 18. d , 19. a , 20. a
21. b , 22. d , 23. b , 24. a , 25. a
26. a , 27. a , 28. a , 29. b , 30. a
31. a , 32. b , 33. b , 34. a , 35. a
36. a , 37. a , 38. b , 39. a , 40. a
41. d , 42. b , 43. d , 44. c , 45. a
46. a , 47. c , 48. a , 49. a , 50. a