McqMate
Chapters
| 1. |
Any type of rainfall has the following aspects: |
| A. | ascent and descent of air |
| B. | horizontal movement of air |
| C. | ascent of air leading to cooling and condensation |
| D. | all of above |
| Answer» C. ascent of air leading to cooling and condensation | |
| 2. |
Convectional rainfall is highly localized and is associated with minimum cloudiness. Which of the statements given above is/are correct? |
| A. | 1 only |
| B. | Both 1 and 2 |
| C. | 2 only |
| D. | Neither 1 nor 2 |
| Answer» A. 1 only | |
| 3. |
Which of the following places are favourably influenced by the Trade winds? 1. West Indies 2. Brazil 3. Mexico 4. Medagascar |
| A. | I and II |
| B. | I, II, III and IV |
| C. | III and IV |
| D. | II and IV |
| Answer» B. I, II, III and IV | |
| 4. |
Which of the following are true regarding ionosphere? 1. It is the uppermost layer of atmosphere 2. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized 3. This layer is responsible for reflecting back the radio wave~ transmitted from the earth |
| A. | I and II |
| B. | I and II |
| C. | II and III |
| D. | I, II and III |
| Answer» C. II and III | |
| 5. |
The type of rainfall shown in figure is: |
| A. | orographic |
| B. | convectional |
| C. | cyclonic |
| D. | relief |
| Answer» B. convectional | |
| 6. |
Which of the following is the annual precipitation of an area? |
| A. | All forms of precipitation converted to the quantity of liquid water |
| B. | The total actual amount of rain, snow, hail and sleet |
| C. | The total amount of rain per year, irrespective of snow, hail and sleet |
| D. | All forms of precipitation measured after conversion to equal quantity of ice |
| Answer» A. All forms of precipitation converted to the quantity of liquid water | |
| 7. |
Fogs formed along, the sea-coast are due to: |
| A. | advection |
| B. | radiaton |
| C. | convection |
| D. | conduction |
| Answer» A. advection | |
| 8. |
Which of the following is produced by the rapid ascent of moist air? |
| A. | Frost |
| B. | Fog |
| C. | Hail |
| D. | Snow |
| Answer» C. Hail | |
| 9. |
In the atmosphere of the primitive earth there was no : |
| A. | oxygen |
| B. | carbon dioxide |
| C. | nitrogen |
| D. | ammonia |
| Answer» A. oxygen | |
| 10. |
The January isotherm taken as a basis for dividing India into tropical and subtropical zones is : [IAS 1997] |
| A. | 21° C |
| B. | 18° C |
| C. | 12° C |
| D. | 15° C |
| Answer» B. 18° C | |
| 11. |
A temperature inversion is most likely to occur under which of the following conditions? [IAS 2004] |
| A. | Mountain top in late evening |
| B. | Windy but cloudy night |
| C. | Calm, cloudy and humid night |
| D. | Calm, clear and cool winter night |
| Answer» D. Calm, clear and cool winter night | |
| 12. |
Which of the following are the ideal conditions for the phenomenon of temperature inversion to occur? [IAS 2001] 1. Long nights 2. Cloudy sky 3. Calm and stable air 4. Dry air |
| A. | I and II |
| B. | I, II and III |
| C. | II, III and IV |
| D. | I, III and IV |
| Answer» D. I, III and IV | |
| 13. |
Agents of fog formation do not include: |
| A. | high relative humidity |
| B. | diurnal temperatures of short ranges |
| C. | winter season |
| D. | rapid radiation |
| Answer» B. diurnal temperatures of short ranges | |
| 14. |
Which one of the following is the cloud that is dark-grey or black, found at very low height and brings the real rain? [CDS 2004] |
| A. | Altocumulus |
| B. | Cirrus |
| C. | Cirrostratus |
| D. | Nimbostratus |
| Answer» D. Nimbostratus | |
| 15. |
Which one of the following statements is correct? [IAS 2004] |
| A. | Cirrus clouds are composed of ice crystals |
| B. | Cirrus clouds exhibit a flat base and have the appearance of rising domes |
| C. | Cumulus clouds are white and thin, and form delicate patches and give a fibrous and feathery appearance |
| D. | Cumulus clouds are classified as high clouds |
| Answer» A. Cirrus clouds are composed of ice crystals | |
| 16. |
The cauliflower shape is associated with which of the following cloud formations? |
| A. | Stratus |
| B. | Cumulus |
| C. | Nimbus |
| D. | Cirrus |
| Answer» B. Cumulus | |
| 17. |
Winds and air currents differ in the aspect that: |
| A. | air currents blow much faster than winds |
| B. | air currents are always moisture laden while the winds are usually dry |
| C. | the winds blow on lands while air currents blow over seas and oceans |
| D. | winds are horizontal movements of air while air currents are the vertical movements of air |
| Answer» D. winds are horizontal movements of air while air currents are the vertical movements of air | |
| 18. |
In USA, which one of the following regions Receives heavy rainfall throughout the year under the influence of Wester lies? [IAS 2009] |
| A. | North-western |
| B. | North-eastern |
| C. | South-western |
| D. | South-eastern |
| Answer» A. North-western | |
| 19. |
The cold and dense air blowing down the mountain slope during the night is known as: |
| A. | anabatic wind |
| B. | khamsin |
| C. | katabatic wind |
| D. | harmattan |
| Answer» C. katabatic wind | |
| 20. |
When the wind is deflected due to the rotation of the Earth, it is called as: [NDA 1994] |
| A. | geostropic wind |
| B. | polar wind |
| C. | westerlies |
| D. | trade winds |
| Answer» A. geostropic wind | |
| 21. |
Which of the following statements is incorrect? |
| A. | Roaring forties are the southern latitudes where Westerlies are prevalent |
| B. | Monsoons are local seasonal winds |
| C. | Doldrum belt lies between 10°N and 10°S latitudes |
| D. | Horse latitudes are found between Trade winds and Westerlies |
| Answer» B. Monsoons are local seasonal winds | |
| 22. |
Temperate cyclones bring along with them: |
| A. | pleasant weather |
| B. | snowfall and hail |
| C. | thunderstorms and torrential rainfall |
| D. | mild rainfall |
| Answer» D. mild rainfall | |
| 23. |
Winds blow: |
| A. | in regions of low pressure |
| B. | from a region of high pressure to a region of low pressure |
| C. | from a region of low pressure to .a region of high pressure |
| D. | in regions of high pressure |
| Answer» B. from a region of high pressure to a region of low pressure | |
| 24. |
Doldrums are belts of low atmospheric pressure obtained in the regions adjoining the equator to a distance of : |
| A. | 5 degree latitude towards the north only |
| B. | 5 degree latitude towards the south only |
| C. | 5 degree latitude towards north and south |
| D. | 15 degree latitude towards north and south |
| Answer» C. 5 degree latitude towards north and south | |
| 25. |
The chemically inactive gas present in the atmosphere is : |
| A. | nitrogen |
| B. | argon |
| C. | water vapour |
| D. | oxygen |
| Answer» B. argon | |
| 26. |
Doldrums are: [NDA 1995] |
| A. | high latitudes with heavy snow |
| B. | equatorial zone with low pressure |
| C. | high pressure areas on mountains |
| D. | sub-polar zone with high pressure |
| Answer» B. equatorial zone with low pressure | |
| 27. |
With reference to the sub-tropical high pressure belt, consider the following statements: 1. It is affected by Earth's rotation and descent of winds from higher altitudes. 2. It is dynamically induced and characterized with anti-cyclonic conditions. Which of the statement(s) given above is/are correct? [IAS 2009] |
| A. | 1 only |
| B. | Both 1 and 2 |
| C. | 2 only |
| D. | Neither 1 nor 2 |
| Answer» C. 2 only | |
| 28. |
Atmospheric pressure exerted on earth is due to: |
| A. | Gravitational pull of the earth |
| B. | Rotation of earth |
| C. | Revolution of earth |
| D. | Uneven heating of earth |
| Answer» A. Gravitational pull of the earth | |
| 29. |
The Sea breeze blows during: [Senior Observer's Exam 1991] |
| A. | day from land to sea |
| B. | day from sea to land |
| C. | night from land to sea |
| D. | night from sea to land |
| Answer» B. day from sea to land | |
| 30. |
The instrument used for finding out wind-direction is : |
| A. | anemometer |
| B. | wind vane |
| C. | wind gauze |
| D. | hygrometer |
| Answer» B. wind vane | |
| 31. |
‘Beaufort Scale’ is used to measure: |
| A. | air pressure |
| B. | wind velocity |
| C. | wind direction |
| D. | humidity |
| Answer» B. wind velocity | |
| 32. |
Lapse rate is related to the decrease of : [IFS 1998] |
| A. | wind velocity with an ascent of 300 feet |
| B. | humidity with an ascent of 450 feet |
| C. | temperature at 1°F for an ascent of 330 feet |
| D. | pressure with an ascent of 500 feet |
| Answer» C. temperature at 1°F for an ascent of 330 feet | |
| 33. |
Which of the following constituents of the atmosphere are important from the climatic point of view ? [IFS 1993] 1. Nitrogen 2. Oxygen 3. Carbon dioxide |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1, 2 and 3 |
| D. | only 3 |
| Answer» D. only 3 | |
| 34. |
The Trade winds are caused by: |
| A. | rotation of the earth |
| B. | revolution of the earth |
| C. | inflowing movement of air along the earth's surface towards the equator |
| D. | none of these |
| Answer» C. inflowing movement of air along the earth's surface towards the equator | |
| 35. |
What is the correct sequence of the following zonal pressure belts? 1. Subpolar low 2. Equatorial low 3. Polar high 4. Subtropical high Select the correct answer using the codes given below: |
| A. | 2, 3, 1, 4 |
| B. | 1, 4, 2, 3 |
| C. | 2, 4, 1, 3 |
| D. | 1, 3, 2, 4 |
| Answer» C. 2, 4, 1, 3 | |
| 36. |
Which one of the following statements is correct? [IAS 2004] |
| A. | Jet streams are best developed in winters |
| B. | Jet streams have often developed oscillations |
| C. | Jet streams greatly influence our surface weather |
| D. | All the above three are correct in respect of jet streams |
| Answer» D. All the above three are correct in respect of jet streams | |
| 37. |
Arrange the following gases of the atmosphere in increasing order by volume: 1. Nitrogen 2. Oxygen 3. Carbon dioxide 4. Argon |
| A. | I, II, III, IV |
| B. | l, II, IV, III |
| C. | III, IV, II, I |
| D. | IV, III, II, I |
| Answer» C. III, IV, II, I | |
| 38. |
Land masses are heated and cooled much faster than water bodies. Identify the true statements in this regard: 1. Land gets heated by conduction 2. Water has higher specific heat 3. Only the surface layers of water are heated 4. Water gets heated by convection |
| A. | I, II and III |
| B. | II and III |
| C. | I and IV |
| D. | I, II and IV |
| Answer» D. I, II and IV | |
| 39. |
When can one record the lowest temperature of air? |
| A. | Just before sunrise |
| B. | At midnight |
| C. | At 3 a.m. |
| D. | No fixed time |
| Answer» A. Just before sunrise | |
| 40. |
What helps to maintain the heat budget on the surface of the earth? |
| A. | Incoming insolation in short waves and terrestrial radiation in long waves |
| B. | The atmosphere absorbs heat |
| C. | Incoming solar radiation is reflected |
| D. | The earth absorbs heat |
| Answer» A. Incoming insolation in short waves and terrestrial radiation in long waves | |
| 41. |
The water content in the atmosphere: |
| A. | is independent of temperature |
| B. | increases as temperature increases |
| C. | decreases as temperature increases |
| D. | either increases or decreases with temperature increase |
| Answer» C. decreases as temperature increases | |
| 42. |
An upper air wind system with very high velocities in certain parts of the atmosphere is called: |
| A. | a cyclone |
| B. | an anticyclone |
| C. | jet stream |
| D. | a tsunami |
| Answer» C. jet stream | |
| 43. |
Which one of the following conditions is NOT necessary for precipitation to occur? [NDA 2002] |
| A. | The air must be warm |
| B. | The air must be saturated |
| C. | The air must be cooled below its dew point |
| D. | The air must contain hygroscopic particles |
| Answer» A. The air must be warm | |
| 44. |
Very strong and cold icy winds that blow in the Polar regions are called: [CPO SI 2003] |
| A. | typhoons |
| B. | tornadoes |
| C. | blizzards |
| D. | polar winds |
| Answer» C. blizzards | |
| 45. |
The plane of contact of the troposphere and stratosphere is known as : |
| A. | mesosphere |
| B. | ionosphere |
| C. | stratopause |
| D. | tropopause |
| Answer» D. tropopause | |
| 46. |
The velocity of winds is related to : |
| A. | the amount of moisture they carry |
| B. | the nearness to the sea |
| C. | pressure gradient in the direction of their flow |
| D. | the direction in which they blow |
| Answer» C. pressure gradient in the direction of their flow | |
| 47. |
Increase in carbon dioxide in atmosphere causes: [Railways 1994] |
| A. | rise in earth temperature |
| B. | fall in earth temperature |
| C. | uniform earth temperature |
| D. | increase in Ultraviolet rays |
| Answer» A. rise in earth temperature | |
| 48. |
In the Southern hemisphere the Westerlies blow from : |
| A. | north |
| B. | north east |
| C. | north west |
| D. | south east |
| Answer» C. north west | |
| 49. |
Which of the following sequences of atmospheric layers is correct from below? |
| A. | Stratosphere, Ionosphere, Tropopause, Troposphere |
| B. | Ionosphere, Troposphere, Stratosphere, Tropopause |
| C. | Troposphere, Tropopause, Stratosphere, Ionosphere |
| D. | Tropopause, Troposphere, Ionosphere, Stratosphere |
| Answer» C. Troposphere, Tropopause, Stratosphere, Ionosphere | |
| 50. |
The layer of the atmosphere which provides ideal conditions for flying on et aeroplanes is : |
| A. | troposphere |
| B. | stratosphere |
| C. | ionosphere |
| D. | exosphere |
| Answer» B. stratosphere | |
| 51. |
Cyclone is a system of wind blowing: [CBI 1991] |
| A. | spirally outwards from a high pressure region |
| B. | spirally towards low pressure region |
| C. | in a straight line from high to low pressure region |
| D. | from Ball of Bengal towards Bangladesh annually |
| Answer» B. spirally towards low pressure region | |
| 52. |
Consider the following statements regarding general characteristics associated with tropical cyclones 1. Tropical cyclones move with very low velocity over the oceans but become strong while moving over the land areas. 2. They are confined to a particular period of the year (mainly summer) and normally move from east to west. Which of the statement(s) given above is/are correct? [IAS 2009] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» B. 2 only | |
| 53. |
Which one of the following constituents of the atmosphere causes greatest changes in climate and weather? [NDA 1995] |
| A. | Nitrogen |
| B. | Oxygen |
| C. | Ozone |
| D. | Water Vapour |
| Answer» D. Water Vapour | |
| 54. |
Consider the following statements with reference to tornadoes: 1. Tornadoes are smaller and more intense than hurricanes. 2. Tornadoes are most abundant along the eastern coast of India. 3. The average tornado lasts for less than one hour. 4. Tornadoes are most common in the afternoons in the early summer. Which of these statements are correct? [CDS 2002] |
| A. | 1, 3 and 4 |
| B. | 2, 3 and 4 |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3 |
| Answer» A. 1, 3 and 4 | |
| 55. |
The hot dry local winds that blow on the eastern side of the Alps Mountain are known as: [NDA 2003] |
| A. | Chinook |
| B. | Foehn |
| C. | Khamsin |
| D. | Sirocco |
| Answer» B. Foehn | |
| 56. |
Which one of the following characteristics is NOT associated with the tropical cyclones? [NDA 2002] |
| A. | Before the cyclone arrives the air becomes very still and temperature and humidity are high |
| B. | As the front of the vertex arrives, gusty winds develop and thick clouds appear |
| C. | As the cold front passes, the weather changes very rapidly |
| D. | Calm conditions return when the eye of the cyclone arrives |
| Answer» D. Calm conditions return when the eye of the cyclone arrives | |
| 57. |
Which of the following is/are wrongly matched? 1. Typhoon : China Sea 2. Tornado : Mid-Western United States 3. Hurricane : West Indies 4. Willy-Willies : Canada |
| A. | 2 and 4 |
| B. | 1, 2 and 4 |
| C. | 2 and 3 |
| D. | 4 only |
| Answer» D. 4 only | |
| 58. |
The clouds extending from one side of horizon to other as 3 dark grey sheet having uniform base are called: [IAS 2004] |
| A. | Stratus clouds |
| B. | Cumulus clouds |
| C. | Cirrus clouds |
| D. | Nimbus clouds |
| Answer» A. Stratus clouds | |
| 59. |
Because of which one of the following factors, clouds do not precipitate in deserts? [CDS 2009] |
| A. | Low pressure |
| B. | Low humidity |
| C. | High wind velocity |
| D. | High temperature |
| Answer» B. Low humidity | |
| 60. |
Consider the following statements: 1. Nearly 99 percent of the total mass of the atmosphere lies within 30 km of the Earth's surface. 2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth's surface. Which of the statements given above is/are correct? [IAS 2008] |
| A. | 1only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» A. 1only | |
| 61. |
The albedo of which one among the following is the highest? [IAS 2008] |
| A. | Cirrus cloud |
| B. | Cumulonimbus cloud |
| C. | Melting snow |
| D. | Sand |
| Answer» A. Cirrus cloud | |
| 62. |
Of the solar energy coming into the Biosphere, what percentage of it is actually used in the photosynthesis? [IAS 2008] |
| A. | Less than 1% |
| B. | Between 1% and 15% |
| C. | Between 15% and 2% |
| D. | More than 2% |
| Answer» D. More than 2% | |
| 63. |
Which of the following statements characterize the anticyclones? 1. Anticyclones are low pressure systems. 2. They are characterized by divergent wind circulation. 3. They are indicative of dry weather conditions. Select the correct answer using the codes given below: [NDA 2008] |
| A. | 2 and 3 |
| B. | 1 and 3 |
| C. | 1, 2 and 3 |
| D. | 1 only |
| Answer» A. 2 and 3 | |
| 64. |
Evening sun is not a shot as the mid-day sun. What is the reason? [NDA 2008] |
| A. | In the evening, radiations travel slowly |
| B. | In the evening, the temperature of the sun decreases |
| C. | Ozone in atmosphere absorbs more light in the evening |
| D. | In the evening, radiations travel larger distance through atmosphere |
| Answer» D. In the evening, radiations travel larger distance through atmosphere | |
| 65. |
Mist is a result of which one of the following? [CDS 2008] |
| A. | Condensation |
| B. | Evaporation |
| C. | Sublimation |
| D. | Saturation |
| Answer» A. Condensation | |
| 66. |
Consider the following statements: 1. Either of the two belts over the oceans at about 30°to 35°Nand S Latitudes is known as Horse Latitude. 2. Horse latitudes are low pressure belts. Which of the statements given above is/are correct? [IAS 2007] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» A. 1 only | |
| 67. |
Consider the following statements: 1. The annual range of temperature is greater in the Pacific Ocean than that in the Atlantic Ocean. 2. The annual range of temperature is greater in the Northern Hemisphere than that in the Southern Hemisphere. Which of the statements given above is/are correct? [IAS 2007] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1and 2 |
| D. | Neither 1 nor 2 |
| Answer» B. 2 only | |
| 68. |
Consider the following statements: 1. In the tropical rainforest of Brazil, the average diurnal range of temperature is much greater than the average annual range of temperature. 2. In the humid subtropical climate of Kyushu island of Japan, the rainfall for the year almost totals that of the rainfall in tropical rainforest. Which of the statements given above is/are correct? [IAS 2007] |
| A. | 1only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 69. |
Consider the following statements: 1. The variation in average annual range of temperature at1 5° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere. 2. At latitudes pole ward of 35° the incoming radiation exceeds the outgoing radiation in. Northern Hemisphere, whereas in Southern Hemisphere the outgoing radiation exceeds the incoming radiation. Which of the statements given above is/are correct? [IAS 2007] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» A. 1 only | |
| 70. |
Which one or the following climates is found in coastal areas of Californian North America, Central Chile in South America and South-West tip of West Australia? [IAS 2007] |
| A. | Tropical savanna |
| B. | Mediterranean |
| C. | Humid Continental |
| D. | Low-latitude steppe |
| Answer» B. Mediterranean | |
| 71. |
Consider the following statements: 1. A hurricane acquires its spin from the Coriolis effect. 2. The diameter of the hurricane decreases as it moves away from low latitudes. 3. The diameter of a hurricane is never below 150 km. Which of the statements given above is/are correct? [IAS 2007] |
| A. | 1 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» C. 1 and 3 only | |
| 72. |
Northern part of Australia is typified by which one of the following? [IAS 2007] |
| A. | Equatorial climate |
| B. | Mediterranean climate |
| C. | Temperate climate |
| D. | Monsoon climate |
| Answer» D. Monsoon climate | |
| 73. |
When a descending air contracts and its volume decreases, what happens to its temperature? [IAS 2009] |
| A. | Its temperature decreases |
| B. | Its temperature increases |
| C. | Its temperature remains constant |
| D. | Its temperature first increases, then decreases |
| Answer» B. Its temperature increases | |
| 74. |
Condensation is a process which occurs when [IAS 2009] |
| A. | temperature falls below 0°C |
| B. | absolute humidity becomes equal to relative humidity |
| C. | temperature in the air parcel remains static |
| D. | relative humidity becomes 100% and more |
| Answer» D. relative humidity becomes 100% and more | |
| 75. |
Which of the following sequences of clouds in ascending order would one meet 500 metres and above the mean sea level? [IAS 2009] |
| A. | Stratus, Nimbus, Cirrostratus, Cirrus |
| B. | Nimbus, Cirrostratus, Cirrocumulus, Stratus |
| C. | Cirrostratus, Stratus, Cumulo-nimbus |
| D. | Stratus, Cirrostratus, Cumulo-numbus, Cirrocumulus |
| Answer» A. Stratus, Nimbus, Cirrostratus, Cirrus | |
| 76. |
Consider the following statements regarding the distribution and pattern of isotherms 1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter. 2. Temperature gradients are greater in summer than in winter in the northern hemisphere. Which of the statement(s) given above is/are correct? [IAS 2009] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» A. 1 only | |
| 77. |
With reference to convectional type of rainfall, consider the following statements 1. It is a warm weather phenomenon. 2. This rainfall is associated with cumulo-nimbus clouds. Which of the statement(s) given above is/are correct? [IAS 2009] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 78. |
A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct? [CDS 2011] |
| A. | Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time |
| B. | Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds |
| C. | Cloud Burst occurs only in hilly areas |
| D. | There is no satisfactory technique till now for predicting Cloud Burst |
| Answer» C. Cloud Burst occurs only in hilly areas | |
| 79. |
What is the major role of a greenhouse gas that contributes to temperature rise of the Earth's surface? [CDS 2012] |
| A. | Transparent to both incoming sunlight and outgoing infrared radiation |
| B. | Stops both incoming sunlight and outgoing infrared radiation |
| C. | Lets outgoing infrared radiation pass through but stops incoming sunlight |
| D. | Lets incoming sunlight' pass through but stops outgoing infrared radiation |
| Answer» D. Lets incoming sunlight' pass through but stops outgoing infrared radiation | |
| 80. |
Logically, what does a continually rising air pressure indicate? [CDS 2012] |
| A. | Advent of unsettled and cloudy weather |
| B. | Advent of a cyclone |
| C. | Fine and settled weather |
| D. | Fine and unsettled weather |
| Answer» A. Advent of unsettled and cloudy weather | |
| 81. |
What is a cloudburst? [CDS 2012] |
| A. | It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes |
| B. | it refers to 50mm rain over a period of time |
| C. | It is caused by rapid condensation of very high clouds |
| D. | It refers to a thunderstorm with little rain |
| Answer» A. It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes | |
| 82. |
Rain shadow effect is associated with [NDA 2011] |
| A. | Cyclonic rainfall |
| B. | Orographic rainfall |
| C. | Convectional rainfall |
| D. | Frontal rainfall |
| Answer» B. Orographic rainfall | |
| 83. |
The intensity of insolation depends on [NDA 2011] |
| A. | Altitude |
| B. | Nature of terrain |
| C. | Wind |
| D. | Latitude |
| Answer» D. Latitude | |
| 84. |
Which of the following statements is/are correct? 1. Cyclone is a low pressure system. 2. The wind movement is clockwise in the cyclone of northern hemisphere. Select the correct answer using the code given below: [NDA 2011] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 85. |
The phenomenon of 'trade winds' takes place due to [NDA 2011] |
| A. | conduction of heat |
| B. | convection of heat |
| C. | radiation |
| D. | None of the above |
| Answer» B. convection of heat | |
| 86. |
Doldrums is a [NDA 2011] |
| A. | Tropical wind belt |
| B. | Tropical wind deflection belt |
| C. | Sub-tropical wind belt |
| D. | Tropical no-wind belt |
| Answer» D. Tropical no-wind belt | |
| 87. |
Which one among the following statements relating to an anticyclone is correct? [NDA 2011] |
| A. | Anticyclone is a wind system with a high pressure centre |
| B. | In anticyclone the movement of wind is inward |
| C. | The contribution of an anticyclone towards determining weather of an area is quite significant |
| D. | The movement of wind is clockwise in an anticyclone of southern hemisphere |
| Answer» A. Anticyclone is a wind system with a high pressure centre | |
| 88. |
Troposphere is the hottest part of the atmosphere because [SSC Grad 2011] |
| A. | it is closest to the Sun |
| B. | there are charged particles in it |
| C. | it is heated by the Earth's surface |
| D. | heat is generated in it |
| Answer» C. it is heated by the Earth's surface | |
| 89. |
Which one among the following statements relating to a cyclone is not correct? [Asstt Commdt 2011] |
| A. | It is a wind circulation system with a low pressure at the centre |
| B. | It brings about sudden change In weather condition in an area |
| C. | Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere |
| D. | It is known as hurricane in West Indies |
| Answer» C. Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere | |
| 90. |
Which one among the following forces is most powerful in determining movement of wind including its velocity ? [Asstt Commdt 2011] |
| A. | Gravitational force |
| B. | Centrifugal force |
| C. | Frictional force |
| D. | Pressure gradient force |
| Answer» D. Pressure gradient force | |
| 91. |
Which one among the following local winds is not characteristically hot and dry? [Asstt Commdt 2011] |
| A. | Sirocco |
| B. | Mistral |
| C. | Khamsin |
| D. | Chinook |
| Answer» B. Mistral | |
| 92. |
Relative humidity [Asstt Commdt 2011] |
| A. | increases with increased temperature |
| B. | decreases with increased temperature |
| C. | decreases with decreased temperature |
| D. | has no relation with increase or decrease of temperature |
| Answer» B. decreases with increased temperature | |
| 93. |
The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1. There are no clouds or water vapour in the lower stratosphere. 2. There are no vertical winds in the lower stratosphere. Which of the statements given above is/are correct in this context? [CSAT 2011] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 94. |
Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why? 1. Southern hemisphere has less landmass as compared to northern hemisphere. 2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. Which of the statements given above is fare correct? [CSAT 2011] |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» A. 1 only | |
| 95. |
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is fare correct? [CSAT 2011] |
| A. | 1only |
| B. | 2 only |
| C. | Both 1and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 96. |
Consider the following statements about anticyclones: (1) The winds are divergent, and spiral out from the centre of high pressure (2) The air moves clockwise in the Northern Hemisphere and anticlockwise in Southern Hemisphere (3) It is accompanied by heavy rainfall (4) A sudden rise in barometric reading heralds the approach of anticyclone Which of these statements are correct? |
| A. | 1 and 2 |
| B. | 1 and 4 |
| C. | 1, 2 and 3 |
| D. | 1, 2 and 4 |
| Answer» D. 1, 2 and 4 | |
| 97. |
Which one of the following statements is correct? [IAS 2004] Hurricanes: |
| A. | form at the equator |
| B. | are not as large as tornadoes |
| C. | develop over warm ocean areas |
| D. | tend to intensify when they move over land surfaces |
| Answer» C. develop over warm ocean areas | |
| 98. |
The instrument used for measuring relative humidity in air is : |
| A. | hygrograph |
| B. | hydrograph |
| C. | pantograph |
| D. | barograph |
| Answer» A. hygrograph | |
| 99. |
Atmospheric humidity is measured by: [NDA 1994] |
| A. | Psychrometer |
| B. | Anemometer |
| C. | Lysimeter |
| D. | Hydrometer |
| Answer» A. Psychrometer | |
| 100. |
Frontal rain is caused by: |
| A. | convection currents |
| B. | winds from sea |
| C. | cyclonic activity |
| D. | condensation of water evaporated from mountains |
| Answer» C. cyclonic activity | |
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