McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) .
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 | |
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