More Questions on Atmosphere
- Q. Which of the following are true regarding ionosphere? I. It is the uppermost layer of atmosphere II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A)II and III
B)I and II
C)I and II
D)I, II and III
Answer: II and III
- Q. Which one of the following is a type of planetary wind?
A)Westerlies
B)Monsoons
C)Loo
D)Tornadoes
Answer: Westerlies
- Q. Condensation is a process which occurs when
A)Temperature in the air parcel remains static
B)Temperature falls below 0°C
C)Absolute humidity becomes equal to relative humidity
D)Relative humidity becomes 100% and more
Answer: Relative humidity becomes 100% and more
- Q. The zone of Earth’s atmosphere immediately above its surface up to a height of about 16kms above equator and 8kms over the poles is known as
A)Troposphere
B)Mesosphere
C)Thermosphere
D)Stratosphere
Answer: Troposphere
- Q. What helps to maintain the heat budget on the surface of the earth?
A)Incoming solar radiation is reflected
B)Incoming insolation in short waves and terrestrial radiation in long waves
C)The atmosphere absorbs heat
D)The earth absorbs heat
Answer: Incoming insolation in short waves and terrestrial radiation in long waves
- Q. The velocity of winds is related to ________
A)Pressure gradient in the direction of their flow
B)The amount of moisture they carry
C)The nearness to the sea
D)The direction in which they blow
Answer: Pressure gradient in the direction of their flow
- Q. What is a cloudburst?
A)It is caused by rapid condensation of very high clouds
B)It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
C)It refers to 50mm rain over a period of time
D)It refers to a thunderstorm with little rain
Answer: It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
- Q. 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
A)1, 2 and 3
B)2 and 3
C)2 and 4
D)1, 2 and 4
Answer: 1, 2 and 3
- Q. Consider the following statements: 1. Troposphere varies in its thickness between equator and poles. 2. Stratosphere does not experience Normal Lapse Rate. 3. Ozone layer occurs in the Mesosphere. 4. Ionosphere lies between Stratosphere and Mesosphere Which of these statements are correct?
A)3 and 4
B)1 and 2
C)2 and 3
D)1, 2 and 4
Answer: 1 and 2
- Q. 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?
A)Both 1and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 2 only
- Q. A fragment of solid matter which enters the upper atmosphere from outer space almost disintegrating before reaching the earth’s surface is
A)Meteor
B)Meteorite
C)Asteroid
D)Comet
Answer: Meteor
- Q. Doldrums are belts of low atmospheric pressure obtained in the regions adjoining the equator to a distance of ________
A)5° latitude towards north and south
B)5° latitude towards the north only
C)5° latitude towards the south only
D)15° latitude towards north and south
Answer: 5° latitude towards north and south
- Q. Consider the following statements: 1. The monsoon climate is found in Northern Australia. 2. The China type climate is found in Argentina. Which of the statements given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: Both 1 and 2
- Q. Dew point is ________
A)A low pressure system in lower atmosphere
B)Amount of actual water vapour present per unit volume of air
C)Incoming solar radiation
D)A temperature at which a given sample of air becomes saturated
Answer: A temperature at which a given sample of air becomes saturated
- Q. The layer of the atmosphere which provides ideal conditions for flying on jet aeroplanes is ________
A)Ionosphere
B)Troposphere
C)Stratosphere
D)Exosphere
Answer: Stratosphere
- Q. Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
A)Ozone
B)Nitrogen
C)Oxygen
D)Water Vapour
Answer: Water Vapour
- Q. When can one record the lowest temperature of air?
A)At 3 a.m.
B)Just before sunrise
C)At midnight
D)No fixed time
Answer: Just before sunrise
- Q. Consider the following statements: 1. Mistral is a cold wind blowing in North America. 2. Sirocco is a hot dry wind blowing across the North African coast. Which of the statement(s) given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 2 only
- Q. The layer of atmosphere which reflects radio waves is
A)Stratosphere
B)Ionosphere
C)Troposphere
D)Exosphere
Answer: Ionosphere
- Q. The plane of contact of the troposphere and stratosphere is known as ________
A)Stratopause
B)Mesosphere
C)Ionosphere
D)Tropopause
Answer: Tropopause
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