420 MCQ Questions in english

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420 MCQ Questions in english हिन्दी

84. How many square kilometers area of Carbet National Park Is

A. 90 square kilometers

B. 82 square kilometers

C. 101 square kilometers

D. None of the above

83. Which of the following is Uttarakhand's most populous city?

A. Dehradun

B. Uttarkashi

C. Chamoli

D. Tehri

82. “Har Ki Pauri” is considered the most sacred on the banks of river Ganga, located In which district of UK?

A. Tehri

B. Dehradun

C. Pauri

D. Haridwar

81. Keeping in view of the earthquake, Uttarakhand has been kept in what Zone?

A. Zone 4 and 5

B. Zone 1 and 2

C. Zone 6 and 7

D. None of the above

80. Which district of Uttarakhand is called “small Kashmir of Uttarakhand”?

A. Nanital

B. Haridwar

C. Uttarkashi

D. Pithoragarh

79. Heavy water is defined as:

A. Rain water

B. Deuterium oxide

C. PH7

D. Tritium oxide

78. The group of metals Fe, Co, and Ni is best known as:

A. Main group metals

B. Alkali metals

C. Transition metals

D. Rare metals

77. The chemical (Ethyl Mercaptan) added to otherwise odourless LPG cooking gas to give it a perceptible odour is a compound of:

A. Chlorine

B. Bromine

C. Sulphur

D. Fluorine

76. The element that all acids share is

A. Oxygen

B. Sulphur

C. Hydrogen

D. Carbon

75. Cooking utensils that are nonstick are coated with

A. Teflon

B. Black paint

C. Polystyrene

D. PVC

74. Silicon carbide is used in which of the following activities?

A. Disinfecting water of ponds

B. Cutting very hard substances

C. Making cement and glass

D. Making casts for statues

73. What is the approximate salinity of seawater?

A. 2.5%

B. 3%

C. 3.5%

D. 2%

72. Iron oxide is created when an iron nail rusts.

A. With decrease in the weight of the nail

B. Without any change in the weight of the nail

C. Without any change in colour or weight of the nail

D. With increase in the weight of the nail

71. The coating on galvanized iron sheets is

A. Chromium

B. Zinc

C. Tin

D. Lead

70. Among the different carbon allotropes

A. Diamond is the hardest, graphite is the softest

B. Diamond is the hardest, lamp black is the softest

C. Coke is the hardest, graphite is the softest

D. Diamond is the hardest, coke is the softest

69. Where does a computer's data get added and compared?

A. CPU

B. Memory

C. Hard disk

D. Floppy disk

68. Which of the following work as lubricant?

A. Iron Oxide

B. Diamond

C. Silica

D. Graphite

67. Lead tetraethyl is used as

A. Mosquito Repellent

B. Fire Extinguisher

C. Pain Killer

D. Petrol Additive

66. The inert gas that deep sea divers use to breathe in place of the nitrogen in the air is

A. Helium

B. Argon

C. Xenon

D. Krypton

65. The gases utilised in various forms of welding consist;

A. Oxygen, Hydrogen, Acetylene and Nitrogen

B. Oxygen and Acetylene

C. Oxygen, Acetylene and Argon

D. Oxygen and Hydrogen

64. When a material is exposed to air, it has the ability to absorb moisture from

A. Efflorescence

B. Desiccation

C. Deliquescence

D. Osmosis

63. Typically employed in quartz clocks and other devices, quartz crystals are chemically

A. A mixture of Germanium Oxide and Silicon dioxide

B. Sodium Silicate

C. Germanium Oxide

D. Silicon Dioxide

62. Which gas is not referred to as a greenhouse gas?

A. Nitrous oxide

B. Methane

C. Hydrogen

D. Carbon dioxide

61. A kilobyte is equivalent to...?

A. 1000 bytes

B. 100 bytes

C. 1024 bytes

D. 1023 bytes

60. What is bromine?

A. Red Liquid

B. Colourless Gas

C. Highly Inflammable Gas

D. Black Solid

59. The material that is the toughest on earth is

A. Iron

B. Gold

C. Platinum

D. Diamond

58. The type of coal where the deposit may be seen to include remnants of the original plant matter is

A. Lignite

B. Bitumen

C. Peat

D. Anthracite

57. Prothrombin, a substance that aids in blood clotting, is released by

A. lymphocytes

B. monocytes

C. blood platelets

D. erythrocytes

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