Fri. Jan 10th, 2025

Front Cyclone and Anticyclone

  1. What is the weather like after the arrival of a cold front in the cold sector?

    Options:
    1. Cloudy
    2. Rainy
    3. Clear
    4. Windy

    Option: C

  2. What is the wind direction change after the arrival of a cold front in the cold sector?

    Options:
    1. 0° to 90°
    2. 45° to 180°
    3. 180° to 360°
    4. 90° to 180°

    Option: B

  3. What is occlusion of a cyclonic front?

    Options:
    1. Formation of a cyclone
    2. Dissipation of a cyclone
    3. Overtaking of warm front by cold front
    4. Formation of a warm front

    Option: C

  4. What is the weather associated with cold front occlusion?

    Options:
    1. Heavy precipitation
    2. Calm weather
    3. Warm weather
    4. Cloudy weather

    Option: B

  5. Who postulated the concept of convergence of warm and moist air masses of tropical origin and cold and denser air masses of polar origin to explain the origin of extratropical cyclones?

    Options:
    1. Fitzroy
    2. Abercromby
    3. Shaw
    4. Bjerknes

    Option: A

  6. What did Abercromby try to explain in his publication ‘Weather’ in the year 1887?

    Options:
    1. The physical processes responsible for the origin of temperate cyclones
    2. The mathematical modeling of a typical temperate cyclone
    3. The descriptive approach to explaining cyclones
    4. The origin of tropical cyclones

    Option: A

  7. Who postulated the dynamic theory of cyclogenesis in temperate regions in the year 1891?

    Options:
    1. Fitzroy
    2. Abercromby
    3. Shaw
    4. Bjerknes

    Option: C

  8. Which theory was postulated after the rejection of the convective current theory to explain the origin of extratropical cyclones?

    Options:
    1. Eddy theory
    2. Polar front theory
    3. Convergence theory
    4. Coriolis theory

    Option: A

  9. What is the polar front theory?

    Options:
    1. A theory postulated by Fitzroy to explain the origin of extratropical cyclones
    2. A theory postulated by Abercromby based on mathematical modeling of cyclones
    3. A theory postulated by Shaw and Lempfert based on dynamic processes
    4. A theory postulated by Bjerknes and Bjerknes based on the formation of fronts

    Option: D

  10. Who proposed the Polar Front Theory?

    Options:
    1. V. Bjerknes and J. Bjerknes
    2. Bergen Theory
    3. Middle Latitude Theory
    4. Satellite and Radar Theory

    Option: A

  11. What is the primary basis of Polar Front Theory?

    Options:
    1. The formation of cyclones
    2. The formation of fronts
    3. The convergence of two air masses
    4. The movement of air masses parallel to each other

    Option: B

  12. What type of air mass is polar in character according to Polar Front Theory?

    Options:
    1. Warm and moist
    2. Cold and dense
    3. Subtropical in origin
    4. South-westerly in direction

    Option: B

  13. The name given to the unstable wavy front formed when warm and cold air masses collide against each other along the polar front is

    Options:
    1. Stationary front
    2. Warm front
    3. Cold front
    4. Polar front

    Option: D

  14. The name given to the eastern part of the wave where eastward advancing warm tropical or subtropical air mass ascends over a wedge of cold air mass is

    Options:
    1. Warm sector
    2. Cold sector
    3. Warm front
    4. Cold front

    Option: C

  15. The name given to the western part of the wave where cold polar air mass pushes warm air mass upward forcibly is

    Options:
    1. Warm sector
    2. Cold sector
    3. Warm front
    4. Cold front

    Option: D

  16. What is the process of cyclone destruction called when cold and warm fronts come close to each other resulting in the destruction of warm front?

    Options:
    1. Occlusion
    2. Subcyclone
    3. Cyclogenesis
    4. Frontolysis

    Option: A

  17. The first stage in the formation of a cyclone is

    Options:
    1. Incipient stage
    2. Mature stage
    3. Equilibrium stage
    4. None of the above

    Option: C

  18. The second stage in the formation of a cyclone is

    Options:
    1. Incipient stage
    2. Mature stage
    3. Equilibrium stage
    4. None of the above

    Option: A

  19. The third stage in the formation of a cyclone is

    Options:
    1. Equilibrium stage
    2. Mature stage
    3. Incipient stage
    4. None of the above

    Option: B

  20. What happens during the mature stage of a cyclone?

    Options:
    1. The warm and cold fronts are fully developed and separated by a warm sector
    2. The cyclone is in equilibrium state
    3. The warm and cold air masses penetrate into each other’s territories
    4. None of the above

    Option: A