Basic Science - Geography (Atmosphere) MCQ's




All Questions are from Year - 2018 or older

Question 91 :
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]

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
  

Question 92 :
Which of the following is a cold wind?

  1. Buran
  2. Foehn
  3. Chinook
  4. Sirocco
  

Question 93 :
In the earth's atmosphere, the atmospheric pressure: [NDA 1991]

  1. increases with height
  2. decreases with height
  3. remains constant with height
  4. first increases and then decreases with height
  

Question 94 :
The cauliflower shape is associated with which of the following cloud formations?

  1. Stratus
  2. Cumulus
  3. Nimbus
  4. Cirrus
  

Question 95 :
The plane of contact of the troposphere and stratosphere is known as :

  1. mesosphere
  2. ionosphere
  3. stratopause
  4. tropopause
  

Question 96 :
Mist is a result of which one of the following? [CDS 2008]

  1. Condensation
  2. Evaporation
  3. Sublimation
  4. Saturation
  

Question 97 :
Winds and air currents differ in the aspect that:

  1. air currents blow much faster than winds
  2. air currents are always moisture laden while the winds are usually dry
  3. the winds blow on lands while air currents blow over seas and oceans
  4. winds are horizontal movements of air while air currents are the vertical movements of air
  

Question 98 :
Consider the following statements: [Asstt Comm 2008] 1. Rainfall in the doldrums is of convectional nature. 2. Convectional rainfall is highly localized and is associated with minimum cloudiness. Which of the statements given above is/are correct?

  1. 1 only
  2. Both 1 and 2
  3. 2 only
  4. Neither 1 nor 2
  

Question 99 :
The dry wind 'Santa Ana' blows in :

  1. Siberia
  2. Argentina
  3. Switzerland
  4. California
  

Question 100 :
Atmospheric humidity is measured by: [NDA 1994]

  1. Psychrometer
  2. Anemometer
  3. Lysimeter
  4. Hydrometer
  

Question 101 :
The instrument used for finding out wind-direction is :

  1. anemometer
  2. wind vane
  3. wind gauze
  4. hygrometer
  

Question 102 :
Atmospheric pressure exerted on earth is due to:

  1. Gravitational pull of the earth
  2. Rotation of earth
  3. Revolution of earth
  4. Uneven heating of earth
  

Question 103 :
Choose the incorrect statement:

  1. Capacity of air to hold moisture decreases with a rise in temperature of the air
  2. The air pressure decreases with an increase in temperature
  3. Absolute humidity is expressed in grams per cubic metre of air
  4. With an ascent of every 165 metres, the temperature is reduced by 1°C
  

Question 104 :
Which one among the following forces is most powerful in determining movement of wind including its velocity ? [Asstt Commdt 2011]

  1. Gravitational force
  2. Centrifugal force
  3. Frictional force
  4. Pressure gradient force
  

Question 105 :
Because of which one of the following factors, clouds do not precipitate in deserts? [CDS 2009]

  1. Low pressure
  2. Low humidity
  3. High wind velocity
  4. High temperature
  

Question 106 :
The Trade winds are caused by:

  1. rotation of the earth
  2. revolution of the earth
  3. inflowing movement of air along the earth's surface towards the equator
  4. none of these
  

Question 107 :
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]

  1. 1only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
  

Question 108 :
Wind in the Southern hemisphere is deflected towards left due to : [CDS 2001]

  1. temperature variations
  2. rotation of the earth
  3. difference in pressure
  4. difference in water content
  

Question 109 :
Which of the following places are favourably influenced by the Trade winds? 1. West Indies 2. Brazil 3. Mexico Medagascar

  1. I and II
  2. I, II, III and IV
  3. III and IV
  4. II and IV
  

Question 110 :
Which one of the following statements is correct? [IAS 2004]

  1. Cirrus clouds are composed of ice crystals
  2. Cirrus clouds exhibit a flat base and have the appearance of rising domes
  3. Cumulus clouds are white and thin, and form delicate patches and give a fibrous and feathery appearance
  4. Cumulus clouds are classified as high clouds
  

Question 111 :
‘Temperate lows’ are:

  1. low pressure areas in cyclones
  2. equatorial low pressure belt
  3. polar regions which have very low temperatures
  4. sub-polar low pressure belts
  

Question 112 :
When can one record the lowest temperature of air?

  1. Just before sunrise
  2. At midnight
  3. At 3 a.m.
  4. No fixed time
  

Question 113 :
In the atmosphere of the primitive earth there was no :

  1. oxygen
  2. carbon dioxide
  3. nitrogen
  4. ammonia
  

Question 114 :
The phenomenon of 'trade winds' takes place due to [NDA 2011]

  1. conduction of heat
  2. convection of heat
  3. radiation
  4. None of the above
  

Question 115 :
Increase in carbon dioxide in atmosphere causes: [Railways 1994]

  1. rise in earth temperature
  2. fall in earth temperature
  3. uniform earth temperature
  4. increase in Ultraviolet rays
  

Question 116 :
Condensation is a process which occurs when [IAS 2009]

  1. temperature falls below 0°C
  2. absolute humidity becomes equal to relative humidity
  3. temperature in the air parcel remains static
  4. relative humidity becomes 100% and more
  

Question 117 :
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]

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
  

Question 118 :
In USA, which one of the following regions Receives heavy rainfall throughout the year under the influence of Wester lies? [IAS 2009]

  1. North-western
  2. North-eastern
  3. South-western
  4. South-eastern
  

Question 119 :
What causes snowfall?

  1. When condensation takes place below 0° C and precipitation occurs in the form of flakes
  2. When rain freezes into snow-flakes while passing through the atmosphere
  3. When condensation takes place in form of fog and precipitation occurs as flakes
  4. When the air temperature is much lower than surface temperature
  

Question 120 :
Temperate cyclones bring along with them:

  1. pleasant weather
  2. snowfall and hail
  3. thunderstorms and torrential rainfall
  4. mild rainfall
  
Pages