everyday science MCQs – Page 3

Practise multiple-choice questions from everyday science for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

everyday science Mcqs
41. Materials for rain-proof coats and tents owe their water proof properties to________?
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A. Viscosity

B. Specific gravity

C. Elasticity

D. Surface tension
42. Defeciency of following vitamin decreases hemoglobin production ?
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A. Thiamine

B. Pyridoxine

C. Biotin

D. Niacin

E. None of these

43. According to Big Bang Theory, the Universe began about __________ billion years ago.
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A. 40 50

B. 10 20

C. 20 30

D. 30 40

44. Which form of drug abuse involves most risk of infection with the HIV (AIDS) virus ?
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A. Injection of heroine

B. None of these

C. Taking too much aspirin

D. Cigarette smoking

E. Using alcholo

45. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________?
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A. increase

B. remains constant

C. also decrease

D. none of these

46. Ozone layer prevents ______________ radiation from entering the atmosphere?
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A. Ultraviolet

B. Infra-red

C. Gamma rays

D. None of these

E. X-rays

47. The rear view mirror of a motor vehicle is ________?
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A. Plane

B. Concave

C. Convex

D. Biconcave

48. The instrument which measures very high temperature is____________?
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A. Chronometer

B. Pyrometer

C. Thermostat

D. Manometer

49. Radioactivity was discovered by __________?
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A. Rutherford

B. Thomson

C. Bacquerel

D. Kelvin

50. Lead ball falls through water more slowly than through air because __________?
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A. Of the viscous force in water

B. Of The surface tension of water

C. Density of air is less than that of water

D. The value of g is less in water

51. Which one of the following sets of color combinations is added in color vision in TV?
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A. Red, green and blue

B. White. red and yellow

C. Yellow, green and blue

D. Orange, back and violet

52. Name the famous book of Ibn-Sina in which he discussed human physiology and medicine ?
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A. New Renaissance

B. Tadhkira

C. Al-Qanun

D. Al-Masudi

E. None of these

53. A lake starts freezing because of the cold atmosphere. It will first freeze
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A. ln the middle pan

B. At the bottom

C. Uniformly throughout the water body

D. At the top surface
54. In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?
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A. Chemical Reaction

B. None of these

C. Nuclear reaction

D. Fission nuclear reaction

E. Fusion nuclear reaction
55. The most abundant element in the universe is __________.
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A. Hydrogen

B. Oxygen

C. Carbon Dioxide

D. Silicon

56. The average adult has a blood volume of about __________ liters.
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A. 4

B. 6

C. 5

D. 7

57. An astronaut inside a spacecraft is in a state of weightlessness. This implies that?
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A. The mass of the astronaut is reduced to zero

B. Gravity inside the spacecraft ceases to act

C. The astronaut is outside the influence of the earths gravitational force

D. The astronaut and the spacecraft are both in a free-failing state
58. Who proposed this concept All motion is relative?
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A. Galileo Galilie

B. None

C. Albert Einstein

D. John Kepler

59. Orbital period of the planet Mercury around the sun is _____________?
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A. 2 years

B. 88 days

C. 98 days

D. None of these

E. 365 days

60. A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?
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A. 4 feet

B. 12 feet

C. None of these

D. 6 feet

E. 3 feet