50 important questions for improving your general knowledge

50 important questions for improving your general knowledge

51. The calorific value of a coal sample is high, if it’s:

A. fixed carbon is high

B. moisture content is high

C. volatile matter sleigh

D. All of the above

52. Which of the following is NOT correctly matched?

A. OTEC -> Ocean Thermal Energy Conservation

B. CNG -> Compressed Natural Gas

C. BOD -> Biological Oxygen Demand

D. LPG -> Low Petroleum Gas

53. Electricity can be directly generated from solar radiation by using:

A. photovoltaic cells

B. solar collectors

C. both of these

D. None of these

54. Geothermal reservoirs are:

A. absorbed energy on the earth

B. hot underground pools of water

C. hot Magma under the earth

D. None of the above

55. What percentage of energy coming from the sun is re-radiated to space?

A. 30%

B. 35%

C. 20%

D. 25%

56. Which of the following is NOT a human related activity causing Global Warming?

A. Volcanic eruptions

B. Locomotives

C. Power Plants

D. Coal combustion

58. The geothermal energy utilizes potential of:

A. The earth processes

B. temperature underneath the earth surface

C. magma of volcano

D. volcano eruptions

59. The inexhaustible power is

A. tidal energy

B. ocean energy

C. hydroelectric power

D. All of these

60. The process of ocean thermal energy conversion is based on:

A. the utilization of the potential of tidal

B. the utilization of the temperature differences between warm surface sea and cold deep sea water

C. temperature underneath the surface of earth

D. All of the above

61. At present, the generation of electricity is based mainly on the burning of:

A. fossils fuels

B. natural gas

C. CNG

D. garbage

62. Of the total water vapour potential of the world is:

A. only 1/6th has so far been developed

B. only 1 /5th has so far been developed

C. only 1/10th has so far been developed

D. None of the above

63. The total potential water power of the world is estimated as:

A. 496 million watt

B. 969 million watt

C. 171 million watt

D. 200 million watt

64. A fuel having high ignition temperature is:

A. wood

B. petrol

c. LPG

D. CNG

65. The calorific value of fuel is expressed as:

A. kcal/m³

B. kcal/cm³

C. cal/m³

D. N/m²

66. Natural gas is composed primarily of:

A. M-butane

B. n-octane

C. methane

D. a mixture of butane

67. Domestic cooking gas consists mostly of:

A. methane & ethane

B. ethylene & nylon

C. acetylene & hydrogen

D. CO + H₂

68. When petroleum is heated gradually, the first batch of vapor evolved will be rich in:

A. diesel oil

B. lubricating oil

C. petroleum ether

D. kerosene

69. Of the following fractions of petroleum, the fraction having lowest boiling point is:

A. gasoline

B. diesel

C kerosene oil

D. lubricating oil

70. In the proximate analysis of coal, the moisture is determined at a temperature of:

A. 105°C

B. 500°C

C. 25°C

D. 75°C

71. Anthracite is:

A. a lowest rank coal

B. a high percentage carbon molecule

C. a high percentage volatile matter

D. high calorific value and having high carbon percentage

72. The amount of nitrogen in coal is given by:

A. its proximate analysis

B. ultimate analysis

C. burning it in the absence of air

D. pyrolysis

73. Which of the following pairs regarding the composition of fuel substances is FALSE?

A. Natural Gas -> 4.5% Sulphur

B. Petroleum -> 3.5% Sulphur

C. Lignites -> 70% Carbon

D. Anthracite -> 92% Carbon

74. A good fuel should possess:

A. better anti-knock properties

B. poor anti-knock properties G low calorific value

D. None of the above

75. Which of the following is Biogas?

A. Water gas

B. Coal gas

c. Producer gas

D. Natural gas

76. Largest producer of Natural Gas in the world is:

A. Russia

B. USA

c. India

D. Bangladesh

77. Which of the following energy are the most important sources of energy?

A. Nuclear energy

B. Thermal energy

c. Hydroelectric energy

D. All of these

78. Petroleum refinery is situated near major ports mainly because:

A. they posses technical manpower

B. they have adequate facilities for handling tankers

C. it is cheaper to impart crude oil than refined products

D. All of the above

79. Petroleum products are indispensable for:

A. manufacturing of variety of products

B. lubricants of machines

C. generation of thermal power

D. internal combustion engines

80. Which amongst the following provides the largest source of commercial energy?

A. Oil

B. Coal

C. Natural Gas

D. Hydropower

81. Which of the following is not a desert animal?

A. Camel

B. Mulch

C. Horn toad

D. Salamandra

82. Which of the following terms is related to Coal?

A. Magnesite

B. Limonite

C. Bituminous

D. Haematite

83. Hydroelectric power stations are generally located in mountainous regions, because:

A. dams can be constructed easily

B. rivers have steep gradients in these areas

C. these receive heavy rainfall

D. All of the above

84. A source of renewable power which can be developed with minimum cost is:

A. wind mills

B. tidal power

C. geothermal energy

D. biomass power

85. The future prospects of Nuclear energy in India is:

A. blocked

B. bright

C. doomed

D. Can’t say

86. Which of the following is/are TRUE?

A. CO₂ tends to increase the temperature of the stratosphere by trapping their radiation

B. CO₂ has long term effects due to its adsorption features

C. CO₂ is released in nature by the oxidation of organic substances

D. (B) & (C) only

87. Plant cells can withstand temperatures up to only:

A. – 15°C

B. – 30°C

C. 45°C

D. – 1°C

88. The heating value of wood is:

A. 28,000 kJ/kg

B. 26,000 kJ/kg

C. 24,000 kJ/kg

D. 19,000 kJ/kg

90. Super thermal power stations are located near large coalfields because:

A. cost of coal is low

B. cost of generation is cheap

C. it is cheaper to transport electricity than coal

D. more land is available

91. Atomic power is derived from:

A. Platinum

B. Gold

C. Silver

D. Uranium

93. Petroleum products are more widely used than coal, because they:

A. are cheaper than coal

B. does not leave any residue

C. is indispensible for transport on land, sea and air

D. is easily available

94. Which of the following has highest carbon composition?

A. Peat

B. Gasoline

C. Diesel

D. Kerosene

95. Which of the following is a renewable resource?

A. Soil

B. Minerals

C. Forests

D. Kerosene

96. Petroleum is a mixture of:

A. Hydrocarbons

B. CO + H₂

C. Sulphur and nitrogen

D. Oxygen and water

97. The generation of hydroelectric power depends on:

A. capital of country

B. rainfall of the country

C. slope of the valley

D. load of the river

98. Wildlife refers to:

A. plants in water and on land

B. animals in the forests

C. living organisms in their natural habitats

D. carnivorous animals such as lion, tiger, etc.

99. Importance of wildlife lies in:

A. balancing the population

B. maintenance of food chains and natural cycles

C. usefulness in breeding programmes

D. All of the above

100. Which one of the following would be more appropriate in producing high yielding varieties?

A. More application of fertilizers, irrigation and use of pesticides.

B. Breeding with wild varieties of organisms with genetic potentiality to respond to improved inputs

C. Development of disease resistant varieties of plants

D. Selection of wild organisms and their subsequent preservation

Answers:

51	52	53	54	55	56		58	59	60
A	D	A	B	A	C		B	D	B
61	62	63	64	65	66	67	68	69	70
A	B	A	A	A	C	A	C	A	A
71	72	73	74	75	76	77	78	79	80
D	B	A	A	A	A	B	C	B	A
81	82	83	84	85	86	87	88		90
D	C	B	D	B	D	A	D		C
91		93	94	95	96	97	98	99	100
D		C	B	C	A	B	C	D	B