Wed. Jun 19th, 2024

Atmospheric Extreme Events and Hazards

  1. What is the necessary temperature of the warm water surface of the oceans for the formation of tropical cyclones?

    Options:
    1. At least 20°C
    2. At least 25°C
    3. At least 27°C
    4. At least 30°C

    Option: C

  2. What is the belt surrounding the eye wall of the cyclone characterized by?

    Options:
    1. High wind speed, intense thunderstorms, and heaviest rainfall
    2. Low relative humidity, weak cloudiness, and little rainfall
    3. Intense convective activity and increased cloudiness and rainfall
    4. Suppressed cloudiness and weak convective activity with low rainfall

    Option: A

  3. What is the inflow layer of the tropical cyclone?

    Options:
    1. The highest zone extending from the ground surface upward
    2. The middle zone extending from the ground surface upward
    3. The lowest zone extending up to 3 kilometers from the ground surface
    4. The zone above the eye wall characterized by low relative humidity

    Option: C

  4. What is the upper outflow layer of a tropical cyclone characterized by?

    Options:
    1. Anticyclonic circulation and westerly winds
    2. Cyclonic circulation and easterly winds
    3. Divergent air circulation and easterly winds
    4. Anticyclonic circulation and easterly winds

    Option: A

  5. What are the weather conditions associated with the arrival of a tropical cyclone?

    Options:
    1. Sudden decrease in air pressure, clear sky, and low winds
    2. Sudden increase in air pressure, appearance of cirrus clouds, and calm breezes
    3. Sudden increase in air temperature, appearance of cumulonimbus clouds, and heavy rains
    4. Sudden decrease in air temperature, appearance of cumulonimbus clouds, and light rains

    Option: C

  6. What is the maximum amount of rainfall a single tropical cyclone can yield on average?

    Options:
    1. 50-100 mm
    2. 100-250 mm
    3. 250-500 mm
    4. 750-1000 mm

    Option: B

  7. Where do tropical cyclones mostly develop?

    Options:
    1. Over land between 5°-20°latitudes in both hemispheres
    2. Over the ocean surface between 5°-20°latitudes in both hemispheres
    3. Over land between 0°-5°latitudes in both hemispheres
    4. Over the ocean surface between 0°-5°latitudes in both hemispheres

    Option: B

  8. How many major regions of tropical cyclones are there?

    Options:
    1. 3
    2. 4
    3. 5
    4. 6

    Option: D

  9. In which month do tropical cyclones mostly develop in the north Indian Ocean?

    Options:
    1. January-March
    2. April-June
    3. July-September
    4. October-December

    Option: B

  10. Where do tropical cyclones typically originate in the South Indian Ocean?

    Options:
    1. Off the coast of India
    2. Off the coast of Sri Lanka
    3. Off the coasts of Re Union, Madagascar, and Maritius islands
    4. Off the coast of Australia

    Option: C

  11. What causes tropical cyclones to move westward in the tropics?

    Options:
    1. Westerly winds
    2. The Coriolis effect
    3. The influence of easterly trade winds and equatorial warm ocean currents
    4. The influence of polar air masses

    Option: C

  12. What is the general direction that tropical cyclones move in the South Indian Ocean?

    Options:
    1. East to west
    2. West to east
    3. North to south
    4. South to north

    Option: A

  13. What are the effects of tropical cyclones?

    Options:
    1. Loss of human lives and property through damages caused by high velocity winds, floods, and storm surges
    2. Destruction of natural vegetation
    3. Disruption of communication systems
    4. All of the above

    Option: D

  14. Which regions in the world are responsible for the origin of tropical cyclones?

    Options:
    1. West Indies, South Pacific, North Atlantic, South Indian Ocean, Bay of Bengal, South China Sea
    2. North America, Europe, Asia, Africa, Australia, South America
    3. Middle East, Mediterranean, North Atlantic, Indian Ocean, South Pacific, Caribbean
    4. Arctic, Antarctic, Pacific, Atlantic, Indian, Southern oceans

    Option: A

  15. What is the nature of tropical cyclones in terms of their occurrence?

    Options:
    1. They occur randomly throughout the year
    2. They occur rhythmically in certain seasons of a year
    3. They occur in specific areas regardless of season
    4. They occur with the same frequency in all parts of the world

    Option: B

  16. Which of the following regions is not one of the areas where tropical cyclones occur?

    Options:
    1. Western North Pacific Ocean including Philippine islands
    2. Arabian Sea and Bay of Bengal
    3. Eastern Atlantic Ocean off the coast of Africa
    4. South Indian Ocean off Madagascar

    Option: C

  17. When do hurricanes mostly affect the USA?

    Options:
    1. Between November and April
    2. Between May and November
    3. Between June and September
    4. Between July and October

    Option: B

  18. Which disaster has been attributed to global warming by scientists?

    Options:
    1. Hurricane Katrina
    2. Cyclone Nargis
    3. Typhoon Haiyan
    4. Super Cyclone Orissa

    Option: B

  19. Which country experienced a super cyclone in 1999 that resulted in more than 10,000 deaths?

    Options:
    1. Bangladesh
    2. India
    3. Myanmar
    4. Philippines

    Option: B

  20. What is the Saffir-Simpson Hurricane Damage Scale?

    Options:
    1. A five-point scale developed to predict the likelihood of a hurricane
    2. A scale that measures the size and intensity of a hurricane
    3. A scale that assesses the damage caused by a hurricane
    4. A scale that determines the path of a hurricane

    Option: C