Fri. Jan 10th, 2025

Front Cyclone and Anticyclone

  1. What is a stationary front?

    Options:
    1. A front that moves backwards
    2. A front that moves forwards
    3. A front where two air masses converge parallel to each other with no ascent of air
    4. A front that only occurs in the Arctic

    Option: C

  2. Where are the two principal zones on the globe where two air masses converge along a line?

    Options:
    1. Equatorial high pressure belt and subpolar high pressure belt
    2. Equatorial low pressure belt and subpolar low pressure belt
    3. Equatorial low pressure belt and subpolar high pressure belt
    4. Equatorial high pressure belt and subpolar low pressure belt

    Option: B

  3. How many principal frontal zones are there on the Earth’s surface?

    Options:
    1. 1
    2. 2
    3. 3
    4. 4

    Option: C

  4. Which of the following is also known as the Atlantic polar front?

    Options:
    1. Arctic Frontal Zone
    2. Pacific-Arctic Frontal Zone
    3. Mediterranean Frontal Zone
    4. Polar Frontal Zone

    Option: D

  5. Which air masses converge to form polar fronts?

    Options:
    1. Tropical continental air mass and maritime polar air mass
    2. Maritime tropical air mass and continental polar air mass
    3. Continental polar air mass and maritime polar air mass
    4. Maritime tropical air mass and continental Arctic air mass

    Option: C

  6. When are polar fronts more active?

    Options:
    1. Summer season
    2. Winter season
    3. Spring season
    4. Fall season

    Option: B

  7. Where are arctic fronts created?

    Options:
    1. Equatorial regions
    2. Arctic regions
    3. Polar regions
    4. Subpolar regions

    Option: B

  8. When are active arctic fronts formed?

    Options:
    1. When relatively warm polar maritime air mass meets extremely cold Arctic air mass
    2. When relatively warm Arctic air mass meets extremely cold polar maritime air mass
    3. When cold continental European air mass meets winter air mass of North Africa
    4. When two contrasting air masses converge parallel to each other with no ascent of air

    Option: A

  9. The Mediterranean Frontal Zone formed due to

    Options:
    1. Convergence of cold continental European air mass and winter air mass of North Africa along the Mediterranean-Caspian Sea line
    2. Convergence of warm continental European air mass and winter air mass of North Africa along the Mediterranean-Caspian Sea line
    3. Convergence of cold continental African air mass and winter air mass of Europe along the Mediterranean-Caspian Sea line
    4. Convergence of warm continental African air mass and winter air mass of Europe along the Mediterranean-Caspian Sea line

    Option: A

  10. Where do the winter disturbances associated with the Pacific-Arctic Frontal Zone move?

    Options:
    1. North
    2. South
    3. East
    4. West

    Option: B

  11. Which of the following frontal zones influences the winter weather conditions of the western coast of North America?

    Options:
    1. Arctic Frontal Zone
    2. Pacific Polar Frontal Zone
    3. Intertropical Frontal Zone
    4. North Atlantic Frontal Zone

    Option: B

  12. How many frontal zones develop over the North Pacific Ocean during winter season?

    Options:
    1. One
    2. Two
    3. Three
    4. Four

    Option: B

  13. What causes the formation of tropical front near the equator?

    Options:
    1. Convergence of north-west and south-west trade winds
    2. Convergence of north-east and south-east trade winds
    3. Convergence of north-west and south-east trade winds
    4. Convergence of north-east and south-west trade winds

    Option: B

  14. Which of the following weather conditions are experienced along different fronts?

    Options:
    1. Differences in air pressure and wind speed
    2. Differences in temperature and cloud cover
    3. Differences in precipitation and wind direction
    4. Differences in humidity and cloud type

    Option: D

  15. What type of precipitation is associated with warm fronts?

    Options:
    1. Short duration and heavy
    2. Long duration and moderate
    3. Occasional and scattered
    4. None of the above

    Option: B

  16. What is the range of latitudes where temperate cyclones are formed?

    Options:
    1. 0°-35°
    2. 35°-65°
    3. 65°-90°
    4. 0°-90°

    Option: B

  17. Which of the following is not a type of temperate cyclone?

    Options:
    1. Dynamic cyclones
    2. Thermal cyclones
    3. Tropical cyclones
    4. Secondary cyclones

    Option: C

  18. What is the difference between dynamic and thermal cyclones?

    Options:
    1. Dynamic cyclones are formed due to insolation, while thermal cyclones are formed due to convergence of air masses.
    2. Dynamic cyclones are stationary at their places of origin, while thermal cyclones move in an easterly direction.
    3. Dynamic cyclones have well-developed fronts and sectors, while thermal cyclones do not have well-developed fronts.
    4. Dynamic cyclones move towards the poles, while thermal cyclones move towards the equator.

    Option: C

  19. The circulation pattern of air in a cyclone in the northern hemisphere is

    Options:
    1. Clockwise
    2. Anticlockwise
    3. No circulation
    4. Random circulation

    Option: B

  20. The term used for a cyclone when its wind velocity increases to gale force is

    Options:
    1. Tropical cyclone
    2. Extratropical cyclone
    3. Depressions
    4. Cyclonic storm

    Option: D