Govt Jobs Test Preparation (Everyday Science)

Govt Jobs Test Preparation of Everyday Science MCQS for LDC, UDC, Assistant, Data Entry Operator, Stenographer and Computer Operator

1. One of the following ways of expressing the concentration of a solution does not depend on temperature. It is--------?

A) Molarity
B) Molality
C) Normality
D) Formality

ANSWER= (B) Molality
Explain:-

 

2. A substance which increases the efficiency of a catalyst is termed as:

A) Promoter
B) Activator
C) Retarder
D) Super catalyst

ANSWER= (A) Promoter
Explain:-

 

3. The amount of energy required by the children of age between one to three years is-----------?

A)300 k Calories
B) 600 k Calorie
C) 900 k Calories
D) 1200 k Calories

ANSWER= (D) 1200 k Calories
Explain:-

 

4. According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in------------?

A) 1 hours
B) 5 hours
C) 10 hours
D) 15 hours

ANSWER= (C) 10 hours
Explain:-

 

5. In eye donation, which one of the following parts of donor’s eye is utilized ?

A) Iris
B) Lens
C) Cornea
D) Retina

ANSWER= (C) Cornea
Explain:-

 

6. The ‘stone’ formed in human kidney consist mostly of-------------?

A) Calcium oxalate
B) Sodium acetate
C) Magnesium sulphate
D) Calcium

ANSWER= (A) Calcium oxalate
Explain:-

 

7. Approximately, how many times each day do our heart valves open and close normally?

A) 10,000
B) 1,00,000
C) 1,50,000
D) 2,00,000

ANSWER= (B) 1,00,000
Explain:-

 

8. Quantity of fresh air required for a man is 1000 cubic feet of air for every------------?

A) 5 minutes
B) 10 minutes
C) 15 minutes
D) 20 minutes

ANSWER= (D) 20 minutes
Explain:-

 

9. What kind of weathering takes place on the valley side above the surface of the glacier?

A)Plucking
B)Abrasion
C)Chemical weathering
D) Frost shattering

ANSWER= (D) Frost shattering
Explain:-

 

10. Rainfall related to mountains is:

A) Orographic rainfall
B) Normal rainfall
C) Monsoon rains
D) Cyclonic rainfall

ANSWER= (A) Orographic rainfall
Explain:-

 

11. What is meant by “Equinox”?

A) The longest day
B) The shortest day
C) The sun-month long day
D) Equal duration of day and night

ANSWER= (D) Equal duration of day and night
Explain:-

 

12. The distance of longitude represents how many minutes difference in time?

A) 10 minutes
B) 4 minutes
C) 15 minutes
D) 1 minute

ANSWER= (B) 4 minutes
Explain:-

 

13. The season changes because of the ------------?

A) Moon is revolving round the earth
B) Earth is revolving round its axis
C) Earth is revolving round the sun
D) Planet Mars is attracting the sun

ANSWER= (C) Earth is revolving round the sun
Explain:-

 

14. The largest latitude circle on earth is --------?

A) Arctic circle
B) Tropic of cancer
C) Tropic of Capricorn
D) The Equator

ANSWER= (D) The Equator
Explain:-

 

15. The oldest barrage on the river Indus at Sukkur was built in-----?

A) 1932
B) 1940
C) 1930
D) 1928

ANSWER= (A) 1932
Explain:-

 

16. Afternoon rains in the equatorial region are the result of influences -------?

A) Land Breeze
B) Monsoon
C) Frontal
D) Convectional

ANSWER= (D) Convectional
Explain:-

 

17. When a warm air is lifted off the surface in temperature depression it is called --------?

A) An occlusion
B) A cold front
C) An anticyclone
D) A warm front

ANSWER= (A) An occlusion
Explain:-

 

18. Water vapour turns into clouds in the atmosphere when:

A) It rains
B) The temperature rise
C) Dew point is reached
D) Evaporation takes place

ANSWER= (C) Dew point is reached
Explain:-

 

19. Weather describe the condition of ------ at any one time

A) The earth
B) The land surface
C) The atmosphere
D) The ionosphere

ANSWER= (C) The atmosphere
Explain:-

 

20. The Stevenson screen contains all of these EXCEPT:

A) Wet bulb thermometer
B) Maximum thermometer
C) Ordinary thermometer
D) Anemometer

ANSWER= (D) Anemometer
Explain:-

 

21. A wind which reverses seasonally is known as-----?

A) Trade
B) Cyclonic
C) Monsoon
D) Polar

ANSWER= (C) Monsoon
Explain:-

 

22. A canyon is a large form of -------

A) Dry valley
B) Gorge
C) Pediment
D) Badiand

ANSWER= (B) Gorge
Explain:-

 

23. Which of the statements to about the Troposphere is not true?

A) It contains 85-90% of the atmosphere’s mass
B) It contains nearly all the water and oxygen of the atmosphere
C) It is the zone which exhibits changes in condition of weather
D) It is about 350 km thick

ANSWER= (D) It is about 350 km thick
Explain:-

 

24. What kind of weathering takes place on the valley side above the surface of the glacier?

A) Plucking
B) Abrasion
C) Chemical weathering
D) Frost shattering

ANSWER= (D) Frost shattering
Explain:-

 

25. The final phase of a star’s evolution is determined by the star’s:

A) Age
B) Gravitational pull
C) Density
D) Mass

ANSWER= (D) Mass
Explain:-

 

26. Which of these is not a Metamorphic rock?

A) Quartzite
B) Slate
C) Gneiss
D) Schist

ANSWER= (A) Quartzite
Explain:-

 

27. Bore is caused by------?

A) Rising tide while meeting river currents
B) Friction from prevailing winds
C) Spring tide and strong winds
D) Unequal heating of ocean

ANSWER= (A) Rising tide while meeting river currents
Explain:-

 

28. The strength of wave action depends on all these EXCEPT:

A) Currents in the sea
B) Wind strength
C) Depth of coastal water
D) Height of waves

ANSWER= (A) Currents in the sea
Explain:-

 

29. The areas around the North and South poles within the Polar circles is called -------------?

A) The Torrid Zone
B) The Frigid Zone
C) The Temperature Zone
D) The Hardiness Zone

ANSWER= (B) The Frigid Zone
Explain:-

 

30. In the Composition of the earth, Aluminum is ---------------?

A) 27.5%
B) 20.3%
C) 14.5%
D) 8.23%

ANSWER= (D) 8.23%
Explain:-

 

31. “Rancidity produced in butter can be decreased by adding quinoline to the butter”. This statements shows that -------?

A) Nothing is impossible
B) Quinoline is an inhibitor
C) Quinoline is a catalyst
D) Quinoline is an activator

ANSWER= (B) Quinoline is an inhibitor
Explain:-

 

32. Gulf streams are caused by----------.

A) Cyclones
B) Ocean Pressure
C) Temperature
D) Difference in water level

ANSWER= (B) Ocean Pressure
Explain:-

 

33. The production of rubber tree is better adopted to areas where the climate is---------

A) Warm and humid
B) Warm and dry
C) Cool and moist
D) cool and dry

ANSWER= (A) Warm and humid
Explain:-

 

34. There are three types of plate boundaries i.e Divergent, Convergent and------------

A) Normal
B) Transform
C) Complex
D) Plain

ANSWER= (B) Transform
Explain:-

 

35. The speed of light with the rise in the temperature of the medium------------?

A) Decrease
B) Increase
C) Remain the same
D) First decrease then increase

ANSWER= (C) Remain the same
Explain:-

 

36. AIDS virus is----------------------

A) Single-stranded RNA
B) Single-stranded DNA
C) Double-stranded RNA
D) Double-stranded DNA

ANSWER= (A) Single-stranded RNA
Explain:-

 

37. Which Vitamin gets destroyed on heating?

A) B
B) E
C) K
D) C

ANSWER= (D) C
Explain:-

 

38. Cow milk is a rich source of------------?

A) vitamin C
B) vitamin B
C) vitamin A
D) vitamin K

ANSWER= (C) vitamin A
Explain:-

 

39. Which of the following vitamins is synthesized in the body by intestinal bacteria-------?

A) Vitamins B1
B) Vitamins B12
C) Vitamins E
D) Vitamins K

ANSWER= (D) Vitamins K
Explain:-

 

40. Mercury is also known as---------?

A) Shine Silver
B) Quick Silver
C) Slow Silver
D) Slippery Silver

ANSWER= (B) Quick Silver
Explain:-

 

41. what kind of soil is treated with gypsum to make it suitable for cropping------?

A) Alkaline
B) Acidic
C) Waterlogged
D) Soil with excessive clay content

ANSWER= (A) Alkaline
Explain:-

 

42. Phobos is the natural satellite of which planet---------- ?

A) Mars
B) Venus
C) Saturn
D) Neptune

ANSWER= (A) Mars
Explain:-

 

43. Galvanised Iron sheets have a coating of------------

A) Tin
B) Silver
C) Zinc
D) Chromium

ANSWER= (C) Zinc
Explain:-

 

44. Spinach leaves are rich source of--------

A) Amino acid
B) Iron
C) Vitamin E
D) Carotene

ANSWER= (B) Iron
Explain:-

 

45. Which pollutant from motor car exhaust causes mental disease -----?

A) Carbon dioxide
B) Lead
C) Sulpher Dioxide
D) Mercury

ANSWER= (B) Lead
Explain:-

 

46. The ratio of pure gold in 18 carat gold is ---------------?

A) 0.5
B) 0.9
C) 0.8.5
D) 0.75

ANSWER= (D) 0.75
Explain:-

 

47. What is the element required for solar energy conversion ------?

A) Ultra pure carbon
B) Silicon
C) Beryllium
D) Tantalum

ANSWER= (B) Silicon
Explain:-

 

48. An element that does not occur in nature but can be produced artificially is----------?

A) Plutonium
B) Uranium
C) Radium
D) Thorium

ANSWER= (A) Plutonium
Explain:-

 

49. Muscle fatigue is caused by the accumulation of-----------?

A) Uric acid
B) Lactic acid
C) Oxalacetic acid
D) Fyruvie acid

ANSWER= (B) Lactic acid
Explain:-

 

50. The total energy of revolving electron in an atom-------------

A) Will always be positive
B) Can never be positive
C) Can have any value above zero
D) Cannot be negativeH

ANSWER= (B) Can never be positive
Explain:-

 

51. The Virus of AIDS affects the growth of-------------?

A) Hemoglobin
B) RBCs in blood
C) T cells in blood
D) Grey Cells in blood

ANSWER= (C) T cells in blood
Explain:-

 

52. The vitamin which is generally excreted by humans in urine is----------?

A) Vitamin A
B) Vitamin B
C) Vitamin B12
D) Vitamin C

ANSWER= (B) Vitamin B
Explain:-

 

53. Which of the following metal occurs in free state --------------?

A) Lead
B) Iron
C) Mercury
D) Copper

ANSWER= (A) Lead
Explain:-

 

54. Magnalium is an alloy of-------------?

A) Magnesium and Lead
B) Aluminium and Zinc
C) Aluminium and Magnesium
D) Aluminium and Mercury

ANSWER= (C) Aluminium and Magnesium
Explain:-

 

55. By which process copper is refined ------------?

A) Roasting
B) Oxidation
C) Zone Refining
D) Electrolysis

ANSWER= (A) Roasting
Explain:-

 

56. In which part of the eye lies the pigment that decides the colour of the eyes of a person---?

A) Retina
B) Iris
C) Cornea
D) Pupal

ANSWER= (B) Iris
Explain:-

 

57. Which among the following is responsible for producing color of human skin ---?

A) Insulin
B) Vitamin K
C) Melanin
D) DNA

ANSWER= (C) Melanin
Explain:-

 

58. Which one of the following can be synthesized by Liver -------?

A) Vitamin B6
B) Vitamin B12
C) Vitamin K
D) Vitamin K

ANSWER= (C) Vitamin K
Explain:-

 

59. What is/are the basic purpose(s) of dams?

A) Storage of water in a large reservoir
B) Generation of electricity
C) Control of floods
D) All of the above

ANSWER= (D) All of the above
Explain:-

 

60. Which one is the world’s largest mangrove forest(s)?

A) Changa Manga Forest
B) Amazon Forest
C) Sundarbans Forest
D) None of the above

ANSWER= (C) Sundarbans Forest
Explain:-

 

61. The rocks formed out of layers of sediment bonded together are known as ---------------?

A) Metamorphic rocks
B) Sedimentary rocks
C) Igneous rocks
D) All of the above

ANSWER= (B) Sedimentary rocks
Explain:-

 

62. What is the name of the central part of the earth?

A) Mantle
B) Core
C) Crust
D) None of the above

ANSWER= (B) Core
Explain:-

 

63. Evaporation from ice and snow is known as-----------?

A) evaporation
B) sublimation
C) hydrogenation
D) insolation

ANSWER= (B) sublimation
Explain:-

 

64. Ice mass that covers more than fifty-thousand square kilometers of land area is classified as------------?

A) ice sheet
B) ice field
C) glacier erosions
D) ice cap

ANSWER= (A) ice sheet
Explain:-

 

65. Pedosphere is sum of-------------?

A) Organisms
B) Soil and water
C) Air
D) All of above

ANSWER= (D) All of above
Explain:-

 

66. Sum of all ecosystems is classified as-----------?

A) Aero sphere
B) Ionosphere
C) Biosphere
D) Ozonosphere

ANSWER= (C) Biosphere
Explain:-

 

67. Average salinity or ratio of salt as per kilogram of water of ocean is----------?

A) 35 grams
B) 55 grams
C) 32 grams
D) 42 grams

ANSWER= (A) 35 grams
Explain:-

 

68. The protein content in wheat is approximately---------------?

A) 6%
B) 9%
C) 12%
D) 15%

ANSWER= (C) 12%
Explain:-

 

69. Alzheimer’s disease in human beings is characterized by the degeneration of -------

A) Kidney cells
B) Nerve cells
C) Liver cells
D) Spleen cellsH

ANSWER= (B) Nerve cells
Explain:-

 

70. The protein content of edible portion of egg is-----------?

A) 13%
B) 13.3%
C) 14
D) 14.5%

ANSWER= (B) 13.3%
Explain:-

 

71. Vitamin A is found in the------------?

A) Green vegetables
B) white vegetables
C) Yellow vegetables
D) Red vegetables

ANSWER= (A) Green vegetables
Explain:-

 

72. On passing through food stuff, X-ray can kill the-----------?

A) Fungus
B) Virus
C) Bacteria
D) insects

ANSWER= (C) Bacteria
Explain:-

 

73. Intrinsic Semi-conductor is also known as----------?

A) Impure-Conductor
B) Pure-Conductor
C) Simple Conductor
D) None of these

ANSWER= (B) Pure-Conductor
Explain:-

 

74. Diameter of Sun is-------------?

A) 12 Lakh kms
B) 13 Lakh kms
C) 14 Lakh kms
D) 15 Lakh kms

ANSWER= (C) 14 Lakh kms
Explain:-

 

75. Which is correct order of solar system starting from Sun ?

A) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
B) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus C.
C) Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus D.
D) Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune

ANSWER= (A) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Explain:-

 

76. Big Bang was an explosion that occurred ?

A) 10 Billion years ago
B) 15 Billion years ago
C) 20 Billion years ago
D) 25 Billion years ago

ANSWER= (B) 15 Billion years ago
Explain:-

 

77. Big Bang theory explains-------------?

A) Origin of Universe
B) Origin of Sun
C) Laws of physics
D) None of above

ANSWER= (A) Origin of Universe
Explain:-

 

78. Approximately how many Galaxies are there ?

A) 10 Billion Galaxies
B) 100 Billion Galaxies
C) 1000 Billion Galaxies
D) 10000 Billion Galaxies

ANSWER= (B) 100 Billion Galaxies
Explain:-

 

79. Study of the Universe is known as-----------?

A) Sociology
B) Cosmology
C) Universology
D) Petology

ANSWER= (B) Cosmology
Explain:-

 

80. Hydrogen peroxide (H2O2)--------------?

A) helps line up cell proteins
B) is poisonous to tissues
C) is often needed as a catalyst
D) aids in oxidation of glucose

ANSWER= (B) is poisonous to tissues
Explain:-

 

81. Which of the following is a mammal?

A) Ostrich
B) Crocodile
C) Platypus
D) Duck

ANSWER= (C) Platypus
Explain:-

 

82. A man can survive without food for atleast?

A) 1 month
B) 2 month
C) 3 month
D) 4 month

ANSWER= (A) 1 month
Explain:-

 

83. Places experiencing equal impact of an earthquake are called-----------------?

A) Seismic lines
B) Seismic built
C) Seismic plates
D) Seismic waves

ANSWER= (A) Seismic lines
Explain:-

 

84. Border line which separates outer space from Earth’s atmosphere is known as-----------?

A) Durand line
B) Space line
C) Venus line
D) Karman line

ANSWER= (D) Karman line
Explain:-

 

85. Second highest layer of Earth’s atmosphere is----------?

A) Stratosphere
B) Mesosphere
C) Troposphere
D) Thermosphere

ANSWER= (A) Stratosphere
Explain:-

 

86. what is the height of The atmosphere layer mesosphere?

A) 85 km
B) 50 km
C) 40 km
D) 30 km

ANSWER= (A) 85 km
Explain:-

 

87. Bromine is a-------------------?

A) black solid
B) red-brown liquid
C) colourless gas
D) highly inflammable gas

ANSWER= (B) red-brown liquid
Explain:-

 

88. The variety of coal in which the deposit contains recognizable traces of the original plant material is------------?

A) bitumen
B) anthracite
C) lignite
D) peat

ANSWER= (C) lignite
Explain:-

 

89. The property of a substance to absorb moisture from the air on exposure is called------------?

A) osmosis
B) deliquescence
C) efflorescence
D) desiccation

ANSWER= (B) deliquescence
Explain:-

 

90. An extremely small piece of silicon on which integrated circuits are implicated is called ------------------?

A) Card Reader
B) Hollerith Code
C) Feed
D) Chip

ANSWER= (D) Chip
Explain:-

 

91. Earth is closest to the sun every year in early --------------, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early ------------------, during our Northern Hemisphere summer

A) January – July
B) June – December
C) July – January
D) December – June

ANSWER= (A) January – July
Explain:-

 

92. What is it called when the Earth is closest to the sun -------------?

A) Aphelion
B) Perihelion
C) Apoapsis
D) Periapsis

ANSWER= (B) Perihelion
Explain:-

 

93. Circadian Rhythm refers to -------------?

A) Planetary movements
B) Formation of galaxies
C) Human body cycles
D) Calisthenics

ANSWER= (C) Human body cycles
Explain:-

 

94. Fuzzy logic is a part of-----------------?

A) Aristotle’s philosophy
B) Computer science
C) Epicurianism
D) Sophism

ANSWER= (B) Computer science
Explain:-

 

95. Periodontics deals with -------------?

A) Surgery of spine
B) Stomach disorders
C) Ligaments restoration
D) Dentistry

ANSWER= (D) Dentistry
Explain:-

 

96. Which of the following conditions related to smoking involves damage to the alveoli sacs?

A) Lung Cancer
B) Atherosclerosis
C) Emphysema
D) Asthma

ANSWER= (C) Emphysema
Explain:-

 

97. How does smoking cigarettes impact the red blood cells?

A) Decreases their ability to congeal
B) Decreases their ability to carry oxygen
C) Decreases their ability to reach their typical life duration
D) Decreases their ability to cleanse wounds

ANSWER= (B) Decreases their ability to carry oxygen
Explain:-

 

98. What is the addictive drug in tobacco --------------?

A) Ethanol
B) Nicotine
C) Ammonia
D) Tar

ANSWER= (B) Nicotine
Explain:-

 

99. Which of the following chemicals is not found in tobacco smoke?

A) Chlorine bleach
B) Rocket fuel
C) Nail polish remover
D) Barbecue lighter fluid

ANSWER= (C) Nail polish remover
Explain:-

 

100. The atmospheric greenhouse effect is produced mainly by the ------------------?

A) Absorption and re-emission of visible light by the atmosphere
B) Absorption and re-emission of ultraviolet radiation by the atmosphere
C) Absorption and re-emission of infrared radiation by the atmosphere
D) Absorption and re-emission of visible light by clouds

ANSWER= (C) Absorption and re-emission of infrared radiation by the atmosphere
Explain:-