Basic Science - Geography (Atmosphere) MCQ's




All Questions are from Year - 2018 or older

Question 121 :
The amount of actual water vapour of air is known as: [NDA 1992]

  1. absolute humidity
  2. dew point
  3. relative humidity
  4. condensation point
  

Question 122 :
Consider the following statements regarding the atmosphere of the earth: 1. It is enveloping the earth because of gravity. 2. Its density decreases with increasing height from the surface of the earth. 3. Its characteristic composition is same throughout its height. 4. Amount of pressure it exerts on earth's surface at sea level is called one atm sphere. Which of these statements are correct? [CDS 2001]

  1. 1 and 4
  2. 2 and 4
  3. 2, 3 and 4
  4. 1, 2 and 4
  

Question 123 :
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

  1. 1 and 2
  2. 2 and 3
  3. 1, 2 and 3
  4. only 3
  

Question 124 :
Frontal rain is caused by:

  1. convection currents
  2. winds from sea
  3. cyclonic activity
  4. condensation of water evaporated from mountains
  

Question 125 :
Countries favourably influenced by Westerlies are:

  1. Western Europe, British Columbia and East of U.S.A.
  2. South-West Africa and South Chile
  3. New Zealand
  4. All of these
  

Question 126 :
Which one of the following conditions is NOT necessary for precipitation to occur? [NDA 2002]

  1. The air must be warm
  2. The air must be saturated
  3. The air must be cooled below its dew point
  4. The air must contain hygroscopic particles
  

Question 127 :
Which one of the following statements is correct? [IAS 2004]

  1. Jet streams are best developed in winters
  2. Jet streams have often developed oscillations
  3. Jet streams greatly influence our surface weather
  4. All the above three are correct in respect of jet streams
  

Question 128 :
Relative humidity [Asstt Commdt 2011]

  1. increases with increased temperature
  2. decreases with increased temperature
  3. decreases with decreased temperature
  4. has no relation with increase or decrease of temperature
  

Question 129 :
A temperature inversion is most likely to occur under which of the following conditions? [IAS 2004]

  1. Mountain top in late evening
  2. Windy but cloudy night
  3. Calm, cloudy and humid night
  4. Calm, clear and cool winter night
  

Question 130 :
Which one of the following characteristics is NOT associated with the tropical cyclones? [NDA 2002]

  1. Before the cyclone arrives the air becomes very still and temperature and humidity are high
  2. As the front of the vertex arrives, gusty winds develop and thick clouds appear
  3. As the cold front passes, the weather changes very rapidly
  4. Calm conditions return when the eye of the cyclone arrives
  

Question 131 :
Which one among the following statements relating to a cyclone is not correct? [Asstt Commdt 2011]

  1. It is a wind circulation system with a low pressure at the centre
  2. It brings about sudden change In weather condition in an area
  3. Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
  4. It is known as hurricane in West Indies
  

Question 132 :
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

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

Question 133 :
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]

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

Question 134 :
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

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

Question 135 :
Which of the following sequences of atmospheric layers is correct from below?

  1. Stratosphere, Ionosphere, Tropopause, Troposphere
  2. Ionosphere, Troposphere, Stratosphere, Tropopause
  3. Troposphere, Tropopause, Stratosphere, Ionosphere
  4. Tropopause, Troposphere, Ionosphere, Stratosphere
  

Question 136 :
Which of the following statements about convectional rainfall are true? 1. The areas of the world, having an equatorial type of climate, receive this kind of rainfall. 2. It is usually torrential and accompanied by thunder and lightning. 3. It is also known as 4 o'clock rain.

  1. 1 and 2
  2. 2 and 3
  3. 1 and 3
  4. 1, 2 and 3
  

Question 137 :
Which of the following characterises the Foehn? 1. It is warm 2. It is humid 3. It is common in the valleys of the northern Alps 4. It blows in winter

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

Question 138 :
The intensity of insolation depends on [NDA 2011]

  1. Altitude
  2. Nature of terrain
  3. Wind
  4. Latitude
  

Question 139 :
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?

  1. 1 and 2
  2. 1 and 4
  3. 1, 2 and 3
  4. 1, 2 and 4
  

Question 140 :
The monsoon has well-developed cycle in: [CDS 1992]

  1. South and South East Asia
  2. North Australia
  3. East United States
  4. Africa
  

Question 141 :
The term used for the zone at low pressure and light and variable winds in the oceanic equatorial regions is :

  1. depression
  2. doldrums
  3. horse-latitudes
  4. inter-tropical convergence
  

Question 142 :
What is true with regard to Jet Streams? 1. High velocity winds 2. Blow from west to east 3. Blow in upper troposphere near the tropopause 4. Blow in the mesosphere

  1. 2 and 3
  2. 2 and 4
  3. 1, 2 and 3
  4. 1, 2 and 4
  

Question 143 :
Consider the following statements: 1. The monsoon climate is found in Northern Australia. 2. The China type climate is f6und in Argentina. Which of the statements given above is/are correct? [Asstt Comm 2008]

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

Question 144 :
Local thunderstorms ‘Nor westers’ are prominent in :

  1. Punjab
  2. West Bengal
  3. Andhra Pradesh
  4. Tamil Nadu
  

Question 145 :
Which are of the following is wrongly characterised?

  1. Chinook- Canada - winter - warm
  2. Khamsin – Egypt – spring - hot
  3. Sirocco – Sahara – spring - hot
  4. Mistral - Rhone Valley - summer – cold
  

Question 146 :
Which one of the following constituents of the atmosphere causes greatest changes in climate and weather? [NDA 1995]

  1. Nitrogen
  2. Oxygen
  3. Ozone
  4. Water Vapour
  

Question 147 :
Pampero' is :

  1. a cold wind which prevails in Argentina and Uruguay
  2. a low pressure area in Equator
  3. a moisture laden wind which brings rainfall to the west coast of Panama
  4. a high pressure area which develops first and then leads to the formation of an anticyclone
  

Question 148 :
Some large lakes in temperate latitudes have a moderating influence upon the climate of adjacent land surfaces. Such an influence may develop when :

  1. the water is shallow
  2. the lake is high above sea level
  3. prevailing out-blowing winds cross the lake in winter
  4. the lake is a basin of inland drainage
  

Question 149 :
The tropical cyclones-Hurricanes and Typhoons-develop and mature:

  1. at the same place
  2. over the land masses only
  3. over the water bodies only
  4. anywhere in the tropical zone
  

Question 150 :
Doldrums are: [NDA 1995]

  1. high latitudes with heavy snow
  2. equatorial zone with low pressure
  3. high pressure areas on mountains
  4. sub-polar zone with high pressure
  
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