More Questions on Atmosphere
- Q. Countries favourably influenced by Westerlies are ________
A)New Zealand
B)Western Europe, British Columbia and East of U.S.A.
C)South-West Africa and South Chile
D)All of these
Answer: All of these
- 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. Which of the following is not one of the three processes involved in the transfer of water between the atmosphere and the surface of the Earth?
A)Condensation
B)Insolation
C)Evaporation
D)Precipitation
Answer: Insolation
- 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. Which of the following is especially true of anticyclones in the southern hemisphere?
A)They often form over continents
B)The air moves in a circular manner
C)Pressure increases from the outside to the centre
D)The air moves in an anti-clockwise direction
Answer: The air moves in an anti-clockwise direction
- 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. Consider the following statements: 1. The variation in an average annual range of temperature at 15° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere. 2. At latitudes poleward 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?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
- Q. Lapse rate is related to the decrease of ________
A)Temperature at 1°F for an ascent of 330 feet
B)Wind velocity with an ascent of 300 feet
C)Humidity with an ascent of 450 feet
D)Pressure with an ascent of 500 feet
Answer: Temperature at 1°F for an ascent of 330 feet
- Q. Which one among the following forces is most powerful in determining movement of wind including its velocity ?
A)Frictional force
B)Gravitational force
C)Centrifugal force
D)Pressure gradient force
Answer: Pressure gradient force
- Q. Temperate lows are ________
A)Polar regions which have very low temperatures
B)Low pressure areas in cyclones
C)Equatorial low pressure belt
D)Sub-polar low pressure belts
Answer: Sub-polar low pressure belts
- Q. Mist is a result of which one of the following?
A)Sublimation
B)Condensation
C)Evaporation
D)Saturation
Answer: Condensation
- Q. Consider the following statements 1. Tropical cyclones have circular isobars. 2. Tropical cyclones originate entirely within the tropical air mass. 3. The intensity and magnitude of hurricanes generally exceed those of typhoons. 4. Tropical cyclones are more destructive than the western disturbances. Select the correct answer by using the following codes
A)2 and 3
B)1, 2 and 4
C)1 only
D)3 and 4
Answer: 1, 2 and 4
- 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. Transfer of surplus heat from the lower latitudes to higher latitudes is done by : I. ocean currents II. planetary winds III. tides IV. waves
A)I and IV
B)I and II
C)III and IV
D)II and III
Answer: I and II
- Q. Fogs formed along, the sea-coast are due to ________
A)Convection
B)Advection
C)Radiaton
D)Conduction
Answer: Advection
- Q. Which one of the following conditions is not necessary for precipitation to occur?
A)The air must be cooled below its dew point
B)The air must be warm
C)The air must be saturated
D)The air must contain hygroscopic particles
Answer: The air must be warm
- Q. When a descending air contracts and its volume decreases, what happens to its temperature?
A)Its temperature remains constant
B)Its temperature decreases
C)Its temperature increases
D)Its temperature first increases, then decreases
Answer: Its temperature increases
- Q. Atmospheric humidity is measured by ________
A)Lysimeter
B)Psychrometer
C)Anemometer
D)Hydrometer
Answer: Psychrometer
- Q. Troposphere is the hottest part of the atmosphere because
A)It is heated by the Earth's surface
B)It is closest to the Sun
C)There are charged particles in it
D)Heat is generated in it
Answer: It is heated by the Earth's surface
- Q. Warm dry winds blowing down the east slopes of Rockies are known as ________
A)Foehn
B)Mistral
C)Nor' westers
D)Chinook
Answer: Chinook
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