684 MCQ Questions in english

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684 MCQ Questions in english हिन्दी

68. 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

67. 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

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

A. Efflorescence

B. Desiccation

C. Deliquescence

D. Osmosis

65. 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

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

A. Nitrous oxide

B. Methane

C. Hydrogen

D. Carbon dioxide

63. A kilobyte is equivalent to...?

A. 1000 bytes

B. 100 bytes

C. 1024 bytes

D. 1023 bytes

62. What is bromine?

A. Red Liquid

B. Colourless Gas

C. Highly Inflammable Gas

D. Black Solid

61. The material that is the toughest on earth is

A. Iron

B. Gold

C. Platinum

D. Diamond

60. 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

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

A. lymphocytes

B. monocytes

C. blood platelets

D. erythrocytes

58. How many buses are connected to the microprocessor 8085?

A. 2

B. 3

C. 5

D. 8

57. An assembler is?

A. Programming language-dependent

B. Syntax dependant

C. Machine dependant

D. Data dependant

56. What ingredient(s) is(are) utilised in pencils?

A. Charcoal

B. Silicon

C. Phosphorous

D. Graphite

55. Which of the following metals combines with other metals to produce an amalgam?

A. Mercury

B. Tin

C. Zinc

D. Lead

54. Water's chemical formula is

A. NaA1O2

B. Al2O3

C. CaSiO3

D. H2O

53. Typically, the gas in an electric bulb is

A. Hydrogen

B. Carbon dioxide

C. Nitrogen

D. Oxygen

52. The generic term for washing soda is

A. Calcium Bicarbonate

B. Sodium Carbonate

C. Calcium Carbonate

D. Sodium Bicarbonate

51. The filament used in electric light bulbs is made up of

A. Copper

B. Aluminium

C. Lead

D. Tungsten

50. The name of the tree that roots from its branches into the ground is:

A. Oak

B. Pine

C. Banyan

D. Palm

49. Which of the following gases causes brass to tarnish in the presence of air?

A. Carbon dioxide

B. Hydrogen Sulphide

C. Oxygen

D. Nitrogen

48. Which of the following is a liquid non-metal at normal temperature?

A. Bromine

B. Chlorine

C. Phosphorous

D. Helium

47. A naturally occurring chelate complex with a core metal is called chlorophyll?

A. Iron

B. Copper

C. Magnesium

D. Calcium

46. Which of the following is a non-volatile memory example?

A. Cache memory

B. RAM

C. ROM

D. None of the above

45. Which country made its debut in the 2018 World Cup Hockey?

A. Canada

B. Ireland

C. Poland

D. China

44. Which of the following is not an input device?

A. Mouse

B. Light pen

C. Keyboard

D. VDU

43. Compact discs, (according to the original CD specifications) hold how many minutes of music?

A. 74 mins

B. 90 mins

C. 56 mins

D. 60 mins

42. One Gigabyte is approximately equal is:

A. 1000,000 bytes

B. 1000,000,000 bytes

C. 1000,000,000,000 bytes

D. None of these

41. Which of the following is not an example of an Operating System?

A. Windows 98

B. BSD Unix

C. Microsoft Office XP

D. Red Hat Linux

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