MCQOPTIONS
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MCQOPTIONS
This section includes 374 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What is an annual rising percentage of nitrous oxide? |
| A. | Month |
| B. | Day |
| C. | Year |
| D. | week |
| Answer» D. week | |
| 52. |
Which of the following devices can be used to measure ozone in the stratosphere from the ground? |
| A. | Spectrometer |
| B. | Photometer |
| C. | Spectrophotometer |
| D. | Spectro-ozonometer |
| Answer» D. Spectro-ozonometer | |
| 53. |
Methane is emitted through human activities, such as |
| A. | Deforestation |
| B. | Industrial construction |
| C. | Biomass Burning |
| D. | Soil fertility |
| Answer» D. Soil fertility | |
| 54. |
Most important greenhouse gase is: |
| A. | Water vapour |
| B. | Carbon dioxide |
| C. | Methane |
| D. | Nitrogen |
| Answer» B. Carbon dioxide | |
| 55. |
In which season is the ozone found at its maximum level in the northern hemisphere? |
| A. | Winter |
| B. | Summer |
| C. | Spring |
| D. | Autumn |
| Answer» D. Autumn | |
| 56. |
'Methane' is main component of: |
| A. | Fossil Fuel |
| B. | Gas oriente |
| C. | Natural Gas |
| D. | Gas exploration |
| Answer» D. Gas exploration | |
| 57. |
Where do we get mathane gas from? |
| A. | Mountainous Area |
| B. | wetland |
| C. | Coastal Area |
| D. | Plane Areas |
| Answer» C. Coastal Area | |
| 58. |
In 1992 and 1993 what was cause of methane concentration downfall in atmosphere? |
| A. | Closing down of Siberian Pipline |
| B. | Russian Recession |
| C. | Afoestation |
| D. | Mining |
| Answer» B. Russian Recession | |
| 59. |
Who discovered the ozone layer? |
| A. | Henri Buisson & Charles Fabry |
| B. | Carl Sagan & Charles Fabry |
| C. | G.M.B Dobson |
| D. | Carl Sagan & G.M.B Dobson |
| Answer» B. Carl Sagan & Charles Fabry | |
| 60. |
Which of the following chemicals are responsible for the depletion of the stratospheric ozone layer? |
| A. | Refrigerants |
| B. | Propellants |
| C. | Foam-blowing agents |
| D. | All of the mentioned |
| Answer» E. | |
| 61. |
What does EESC stand for in context of ozone depleting compounds? |
| A. | Equivalent Effective Stratospheric Chlorine |
| B. | Equivalent Effective Stratospheric Chlorofluorocarbons |
| C. | Equivalent Energy Saving Compounds |
| D. | Energy Effective Stratospheric Compounds |
| Answer» B. Equivalent Effective Stratospheric Chlorofluorocarbons | |
| 62. |
Largest nitrous oxide emission are associated with |
| A. | Natural and Agricultural Ecosystem |
| B. | Industrial and Agricultural system |
| C. | Natural and Social environment |
| D. | Industrial and Commercial system |
| Answer» B. Industrial and Agricultural system | |
| 63. |
Methane reacts with hydroxyl (OH): |
| A. | Electron |
| B. | Atom |
| C. | Radical |
| D. | Molecule |
| Answer» D. Molecule | |
| 64. |
The Montreal Protocol bans the production of which of the following chemical substances? |
| A. | Chlorine, bromine, CFCs, freons |
| B. | Carbon tetrachloride, halons, trichloroethane, CFCs |
| C. | CFCs, bromine, halons, freons |
| D. | CFCs, halons, freons |
| Answer» C. CFCs, bromine, halons, freons | |
| 65. |
Which city in India has the problem of air pollution mainly due to vehicles and industrial emissions? |
| A. | Delhi |
| B. | Mumbai |
| C. | Hyderabad |
| D. | Punjab |
| Answer» B. Mumbai | |
| 66. |
Which of the following greenhouse gas is contributed by cattle farming? |
| A. | Nitrous oxide |
| B. | Methane |
| C. | Carbon monoxide |
| D. | All of the mentioned |
| Answer» C. Carbon monoxide | |
| 67. |
Volcanic eruptions contribute to the global greenhouse phenomenon. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 68. |
Which of the following is a sink for carbon? |
| A. | Wetlands |
| B. | Old oil fields |
| C. | Saline waterbodies |
| D. | All of the mentioned |
| Answer» E. | |
| 69. |
What does the process of carbon sequestration mean? |
| A. | Removal of CO₂ from the atmosphere |
| B. | Storage of CO₂ by depositing in reservoir |
| C. | Removal of CO₂ from the atmosphere & Storage of CO₂ by depositing in reservoir |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 70. |
What is the average concentration of ozone in the ozone layer of the atmosphere? |
| A. | Nearly 100% |
| B. | Greater than 90% |
| C. | Between 10-50% |
| D. | Less than 10ppm |
| Answer» E. | |
| 71. |
'WEC' stands for: |
| A. | World economic chamber |
| B. | World energy council |
| C. | World economic council |
| D. | World economic and climate |
| Answer» C. World economic council | |
| 72. |
Methane' has a shorter lifespan in the |
| A. | Atmosphere |
| B. | Biosphere |
| C. | Biome |
| D. | Oceans |
| Answer» B. Biosphere | |
| 73. |
When was the ozone hole discovered? |
| A. | 1974 |
| B. | 1964 |
| C. | 1994 |
| D. | 1984 |
| Answer» E. | |
| 74. |
Why most of the power station are not using selective catalytic reduction? |
| A. | Less concern about the pollution |
| B. | Due to high cost |
| C. | They don?t have advance knowledge about pollution control |
| D. | More attention is paid to money making |
| Answer» C. They don?t have advance knowledge about pollution control | |
| 75. |
Carbondioxide has a lifespan of about |
| A. | 900 years |
| B. | 100-200 years |
| C. | 300 years |
| D. | 50 years |
| Answer» C. 300 years | |
| 76. |
How sulphur is scrubbed out from flue gases in the coal fired power plants? |
| A. | By using mixture of limestone and Lead |
| B. | By using mixture of limestone and water |
| C. | By using mixture of nitrogen oxide and water |
| D. | Bu using mixture of Sodium and water |
| Answer» C. By using mixture of nitrogen oxide and water | |
| 77. |
Occurance of 15% methane in atmosphere causes |
| A. | Pollution |
| B. | Global warming |
| C. | Humidity |
| D. | Acid Rain |
| Answer» C. Humidity | |
| 78. |
Greenhouse gases that are directly influenced by human activities are: |
| A. | C, CH₄ and O₃ |
| B. | N, P and Cl |
| C. | Ar, N and Nox |
| D. | H, O and p |
| Answer» B. N, P and Cl | |
| 79. |
Who discovered the formation of ozone from photochemical reactions? |
| A. | G.M.B Dobson |
| B. | Sydney Chapman |
| C. | Carl Sagan |
| D. | Henri Buisson |
| Answer» B. Sydney Chapman | |
| 80. |
The temperature decreases with altitude in the stratosphere layer. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 81. |
Which of the following indicates the correct order of the principal layers of the earth’s atmosphere from top to bottom? |
| A. | Troposphere – Stratosphere – Mesosphere – Thermosphere – Exosphere |
| B. | Thermosphere – Stratosphere – Troposphere – Mesosphere – Exosphere |
| C. | Exosphere – Thermosphere – Mesosphere – Stratosphere – Troposphere |
| D. | Exosphere – Mesosphere – Thermosphere – Stratosphere – Troposphere |
| Answer» D. Exosphere – Mesosphere – Thermosphere – Stratosphere – Troposphere | |
| 82. |
Match the following:A. Hurricane 1. Indian Ocean and South Pacific B. Typhoon 2. Low level air circulationC. Cyclone 3. Northeastern Pacific and AtlanticD. Tropical Cyclone 4. Northwestern Pacific |
| A. | A-1; B-3; C-2; D-4 |
| B. | A-3; B-4; C-1; D-2 |
| C. | A-2; B-3; C-4; D-1 |
| D. | A-3; B-2; C-1; D-4 |
| Answer» C. A-2; B-3; C-4; D-1 | |
| 83. |
Which layer of the atmosphere is responsible for aurora formation? |
| A. | Ozone layer |
| B. | Stratosphere |
| C. | Exosphere |
| D. | Ionosphere |
| Answer» E. | |
| 84. |
By international convention, which line marks the outermost boundary of the Earth’s atmosphere? |
| A. | Space line |
| B. | Boundary line |
| C. | Karman line |
| D. | Astronaut line |
| Answer» D. Astronaut line | |
| 85. |
The planetary boundary layer belongs to which of the following atmospheric layers? |
| A. | Exosphere |
| B. | Ionosphere |
| C. | Stratosphere |
| D. | None of the mentioned |
| Answer» E. | |
| 86. |
What is the atmospheric pressure at sea level? |
| A. | 101325 Pa |
| B. | 14.696 psi |
| C. | 760 Torr |
| D. | All of the mentioned |
| Answer» E. | |
| 87. |
Turbopause is highest layer of the homosphere. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 88. |
Which of the following mentioned layers is NOT a homosphere? |
| A. | Exosphere |
| B. | Troposphere |
| C. | Ionosphere |
| D. | Mesosphere |
| Answer» B. Troposphere | |
| 89. |
What would have been the average temperature of Earth without greenhouse gases? |
| A. | 0°C |
| B. | -7°C |
| C. | -9°C |
| D. | -19°C |
| Answer» E. | |
| 90. |
What is the emissivity of the Earth’s surface? |
| A. | 0.457 |
| B. | 0.578 |
| C. | 0.135 |
| D. | 1.42 |
| Answer» B. 0.578 | |
| 91. |
The Earth is still said to be in the “ice age” period. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 92. |
Ever since the industrial revolution, by how much has the average temperature of the Earth increased? |
| A. | 0.24°C |
| B. | 0.6°C |
| C. | 1.2°C |
| D. | 1.8°C |
| Answer» C. 1.2°C | |
| 93. |
How much of the sun’s radiation energy is absorbed by the greenhouse gases to warm the planet? |
| A. | 75PW |
| B. | 1750GW |
| C. | 1500MW |
| D. | 150TW |
| Answer» B. 1750GW | |
| 94. |
Troposphere contains nearly 80% of the atmosphere by mass. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 95. |
What does the term “overcast” define? |
| A. | Phenomenon of indirect radiation exposure due to scattering |
| B. | Weather when cloud cover is equal to 8 oktas |
| C. | Phenomenon of indirect radiation exposure due to scattering & Weather when cloud cover is equal to 8 oktas |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 96. |
In which layer of the ionosphere does the International Space Station orbit? |
| A. | D |
| B. | E |
| C. | F |
| D. | G |
| Answer» D. G | |
| 97. |
Which type of clouds is found in the highest altitude of the Earth’s atmosphere? |
| A. | Noctilucent |
| B. | Cirrostratus |
| C. | Stratus |
| D. | Cirrus |
| Answer» B. Cirrostratus | |
| 98. |
What is the significance of the ionosphere? |
| A. | Aviation movements |
| B. | High frequency radio transmission |
| C. | Regulates weather |
| D. | All of the mentioned |
| Answer» C. Regulates weather | |
| 99. |
Twinkling of stars is otherwise known as scintillation. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 100. |
What does ITCZ stand for corresponding to global wind patterns? |
| A. | Inner Tropospheric Convergence Zone |
| B. | Inter Tropical Convergence Zone |
| C. | Inner Tropical Continental Zone |
| D. | Inter Tropical Continental Zone |
| Answer» C. Inner Tropical Continental Zone | |