Wed. Jun 19th, 2024

Atmospheric Pressure and Motion

  1. Due to the frictional force, the velocity of wind over ground surface, is reduced by

    Options:
    1. 65 percent
    2. 35 percent
    3. 45 percent
    4. 40 percent

    Option: D

  2. The air blowing above the ground or Water surfaces parallel to the isobars is known as

    Options:
    1. Geostrophic wind
    2. Planetary wind
    3. Gradient wind
    4. Both A and C

    Option: A

  3. The zone of geostrophic winds is usually lies between the altitudes of

    Options:
    1. 500-1500 meters
    2. 1500-2000 meters
    3. 500-1000 meters
    4. 100-500 meters

    Option: C

  4. Geostrophic winds will generate, when

    Options:
    1. Pressure Gradient Force = Coriolis Force
    2. Pressure Gradient Force > Coriolis Force
    3. Pressure Gradient Force < Coriolis Force
    4. None of the above

    Option: A

  5. The air blowing in a curved or circular path parallel to the curved or circular isobars is known

    Options:
    1. Geostrophic wind
    2. Planetary wind
    3. Gradient wind
    4. Both A and C

    Option: C

  6. The gradient winds are the result of

    Options:
    1. Pressure gradient force
    2. Coriolis force
    3. Centrifugal and centripetal forces
    4. All of the above

    Option: D

  7. Which one of the following instruments is used to measure wind direction only

    Options:
    1. Wind vane
    2. Wind rose
    3. Anemometer
    4. None of the above

    Option: A

  8. Which one of the following is used to depict direction and speed of prevailing winds on the map

    Options:
    1. Wind vane
    2. Wind rose
    3. Anemometer
    4. None of the above

    Option: B

  9. Which one of the following is used to measure wind speed

    Options:
    1. Wind vane
    2. Wind rose
    3. Anemometer
    4. None of the above

    Option: C

  10. Meteorograph or triple register instrument records

    Options:
    1. Wind direction
    2. Wind speed
    3. Sunshine and precipitation
    4. All of the above

    Option: D

  11. When was the Beaufort scale invented

    Options:
    1. In 1805
    2. In 1705
    3. In 1855
    4. In 1835

    Option: A

  12. The winds blowing almost in the same direction throughout the year are called

    Options:
    1. Prevailing winds
    2. Permanent winds
    3. Invariable winds
    4. Planetary winds

    Option: A

  13. Winds with seasonal changes in their directions are called

    Options:
    1. Prevailing winds
    2. Seasonal winds
    3. Invariable winds
    4. Local winds

    Option: B

  14. Winds blowing in a particular locality are called local winds

    Options:
    1. Prevailing winds
    2. Seasonal winds
    3. Invariable winds
    4. Local winds

    Option: D

  15. Winds blowing from hill tops to the valleys is called

    Options:
    1. Mountain breezes
    2. Valley breezes
    3. Invariable winds
    4. Sea breezes

    Option: A

  16. Winds blowing from valleys to the hill tops is called

    Options:
    1. Mountain breezes
    2. Valley breezes
    3. Invariable winds
    4. Sea breezes

    Option: B