Fri. Jan 10th, 2025

General Atmospheric Circulation

  1. Which one of the following is not included in three zones of doldrum identified by the Crowe

    Options:
    1. Equatorial Western Coastal Region of Africa
    2. Western Coastal Margin of Central America
    3. Eastern Coastal Margin of Central America
    4. Eastern coast of Africa to 180° longitude

    Option: C

  2. The meeting ground of north-east and south-east trade winds is known as

    Options:
    1. Front
    2. ITCZ
    3. Polar zone
    4. Horse latitude

    Option: B

  3. The Inter Tropical Convergence Zone (ITCZ) is the meeting ground of north-east and south-east trade windsRead the following statements carefully:      

    1. In July ITCZ is located around 20 degree-25-degree latitudes which is sometimes called the monsoon trough.        
    2. Due to shifting of ITCZ in north during summer, the trade winds of the southern hemisphere cross the equator and start blowing from south-w north-east due to the Coriolis force

    Which of the statements is/are true?

    Options:
    1. Both 1 and 2
    2. Only 1
    3. Only 2
    4. Neither 1 nor 2

    Option: A

  4. ITC stands for

    Options:
    1. Intra Tropical Convergence
    2. Inter Tropical convergence
    3. Internal Tropical convergence
    4. Inter Tropics convergence

    Option: B

  5. The westerly winds which sometimes develop within the equatorial trough when the ITCZ is well north or south of the Equator is called

    Options:
    1. Jet stream
    2. Westerlies
    3. Equatorial westerlies
    4. Geostrophic wind

    Option: C

  6. The regular inflow of winds from subtropical high-pressure belts to equatorial low-pressure belt is called

    Options:
    1. Jet stream
    2. Westerlies
    3. Equatorial westerlies
    4. Trade wind

    Option: D

  7. The direction of trade wind in the north hemisphere is

    Options:
    1. North-east
    2. South-east
    3. South-west
    4. North-west

    Option: A

  8. The direction of trade wind in the south hemisphere is

    Options:
    1. North-east
    2. South-east
    3. South-west
    4. North-west

    Option: B

  9. When the trade winds of the southern hemisphere cross the equator, then due to Coriolis force they are deflected to

    Options:
    1. The right
    2. The left
    3. Do not deflect
    4. None of the above

    Option: A

  10. Read the following statements carefully:

    1. The trade winds are more regular and constant over the oceans than over the lands  
    2. The equatorward part of the trade winds is more humid than their poleward parts
    3. The trade winds are regular over the continents during summer season

    Which of the statements is/are true?

    Options:
    1. Only 1 and 2
    2. Only 1
    3. Only 2
    4. Only 2 and 3

    Option: A

  11. Read the following statements about trade winds carefully:

    1. The trade winds are more regular and constant over the oceans than over the lands  
    2. They are deflected to the right and become South-East Trades in the southern hemisphere
    3. They blow from Subtropical high-pressure belt to Equatorial low-pressure belt

    Which of the statement’s is/are true?

    Options:
    1. Only 1 and 2
    2. Only 1
    3. Only 2
    4. Only 1 and 3

    Option: D

  12. The regular inflow of winds from subtropical semi permanent high-pressure belt (30°-35° latitudes) to subpolar low-pressure belt in both the hemispheres is called

    Options:
    1. Jet stream
    2. Westerlies
    3. Equatorial westerlies
    4. Trade wind

    Option: B

  13. The direction of westerlies in the north hemisphere is

    Options:
    1. North-east
    2. South-east
    3. South-west
    4. North-west

    Option: C

  14. The direction of westerlies in the south hemisphere is

    Options:
    1. North-east
    2. South-east
    3. South-west
    4. North-west

    Option: D

  15. The maximum transfer of energy and angular momentum takes place between the latitudes

    Options:
    1. 48°-50° in both the hemispheres
    2. 38°-40° in both the hemispheres
    3. 28°-30° in both the hemispheres
    4. 25°-30° in both the hemispheres

    Option: B

  16. The Rossby waves are

    Options:
    1. Meandering loops of flow patterns of upper air westerlies over mid-latitude
    2. Meandering loops of flow patterns of upper air westerlies over low-latitude
    3. Meandering loops of flow patterns of upper air westerlies over high-latitude
    4. None of the above

    Option: B

  17. Which one of the following pressure belts separates two wind systems viz. trade winds and westerlies

    Options:
    1. Equatorial low-pressure belt
    2. Subtropical high-pressure belt
    3. Circum-polar low-pressure belt
    4. Polar high-pressure belt

    Option: B

  18. Which one of the following pressure belts is also known as horse latitudes

    Options:
    1. Equatorial low-pressure belt
    2. Subtropical high-pressure belt
    3. Circum-polar low-pressure belt
    4. Polar high-pressure belt

    Option: B

  19. Horse latitudes extends between latitude of

    Options:
    1. 45°-50°
    2. 30°-35°
    3. 25°-30°
    4. 55°-60°

    Option: B

  20. Read the following statements about carefully Horse latitudes:

    1. Horse latitudes extends between latitude of 30°-35° in both the hemispheres  
    2. Horse latitude are high pressure belts
    3. In ancient times the merchants had to throw away some of the horses being carried in the ships in order to lessen the weight in ship

    Which of the statements is/are true?

    Options:
    1. Only 2
    2. Only 1 and 2
    3. Only 1 and 3
    4. All of the above are correct

    Option: D