Winds MCQ Quiz - Objective Question with Answer for Winds - Download Free PDF

The correct answer is Mango Shower.

Mango Shower is the local winds that help in the ripening of mangoes.

The correct answer is West Bengal and Assam.

Key Points

• Norwester:
  • These are dreaded evening thunderstorms in Bengal and Assam.
  • Their notorious nature can be understood from the local nomenclature of ‘Kalbaisakhi’ locally known in Bengal, a calamity of the month of Baisakh.
  • In Assam, these storms are known as Bardoli Chheerha.
  • These rainfall storms are beneficial for the cultivation of tea in Assam and for the jute and rice and tea cultivated in West Bengal and Bangladesh.

Additional Information

The correct answer is Blossom Shower.

• Blossom shower helps in the blossoming of coffee flowers.
• Pre-Monsoon showers help in the ripening of mangoes.
• Location: Kerala and Karnataka.

Additional Information

• List of Local Winds:

The correct answer is Option 3

Key Points

• Intertropical Convergence Zone (a - IV): The ITCZ is also known as the Doldrums and is a region near the equator where the trade winds converge, causing a low-pressure zone.
• Westerlies (b - III): These winds are found between 30° and 60° latitudes in both hemispheres and play a significant role in influencing weather patterns in mid-latitudes.
• Subtropical High (c - I): This is a region of high atmospheric pressure located near 30° latitude in both hemispheres, often referred to as the Horse Latitudes.
• Subpolar Low (d - II): This is a low-pressure zone near 60° latitude, also known as the Polar Front, where cold polar air meets warmer mid-latitude air.

Important Points

• Atmospheric pressure belts and wind systems are crucial for understanding global weather patterns.
• The ITCZ shifts seasonally due to the tilt of the Earth's axis, influencing monsoon systems in tropical regions.
• The Westerlies are responsible for the movement of weather systems in the mid-latitudes.
• The Subtropical High and Subpolar Low are integral to the Earth's global circulation model.

Additional Information

• Intertropical Convergence Zone (ITCZ):
  • Known as the Doldrums, this is a region of low pressure where the trade winds converge.
  • It is characterized by weak winds and frequent thunderstorms, making it a critical zone for tropical weather systems.
• Westerlies:
  • These winds blow from the west to the east between 30° and 60° latitudes.
  • They are influenced by the Earth's rotation (Coriolis Effect) and are stronger in the winter months.
• Subtropical High:
  • This is a high-pressure zone located at approximately 30° latitude, also known as the Horse Latitudes.
  • It is associated with calm winds and clear skies, often creating desert regions on Earth.
• Subpolar Low:
  • Located near 60° latitude, this is a zone of low pressure where cold polar air meets warmer air from the mid-latitudes.
  • It is a critical area for the development of cyclones and weather systems in higher latitudes.

The correct answer is 1, 2 and 3

Key Points

• Pressure gradients: The difference in atmospheric pressure between two locations creates a pressure gradient force that drives the movement of wind. The greater the difference, the stronger the wind.
• Coriolis effect: Due to the Earth's rotation, moving air is deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, influencing the wind's direction.
• Friction: As wind moves across the Earth's surface, friction with terrain, buildings, and other obstacles slows it down and alters its direction, especially near the ground.
• These factors collectively determine both the strength and direction of winds observed in different regions.

Important Points

• The interaction of these factors with geographical features like mountains, valleys, and large water bodies adds further complexity to wind patterns.
• Global wind systems, such as trade winds, westerlies, and polar easterlies, are influenced by these factors along with the Earth's axial tilt and solar heating.

Additional Information

• Pressure gradients: The pressure gradient force is proportional to the rate of pressure change over a given distance. It acts perpendicular to isobars (lines of equal pressure) on weather maps.
• Coriolis effect: This effect arises because of the Earth's rotation. It increases with latitude and has no influence at the equator. It is vital for the formation of cyclones and anticyclones.
• Friction: The effect of friction is most significant near the Earth's surface and diminishes with altitude. It causes winds to converge in low-pressure systems and diverge in high-pressure systems.
• Other factors: Localized phenomena like sea breezes, land breezes, and monsoons are also influenced by these factors along with thermal differences.

The correct answer is Mango Shower.

Mango Shower is the local winds that help in the ripening of mangoes.

The correct answer is Blossom Shower.

• Blossom shower helps in the blossoming of coffee flowers.
• Pre-Monsoon showers help in the ripening of mangoes.
• Location: Kerala and Karnataka.

Additional Information

• List of Local Winds:

Nor Westers – Tamil Nadu is NOT correctly matched.

Key Points

• Local storms of a hot weather season in India assist in the growth of the crops.
• Some Famous Local Storms of Hot Weather Season in India are:
  • Mango Shower: Towards the end of summer, there are pre-monsoon showers which are a common phenomena in Kerala and coastal areas of Karnataka. Locally, they are known as mango showers since they help in the early ripening of mangoes.
  • Blossom Shower: With this shower, coffee flowers blossom in Kerala and nearby areas.
  • Nor Westers: These are dreaded evening thunderstorms in Bengal and Assam.
    • Their notorious nature can be understood from the local nomenclature of Kalbaisakhi, a calamity of the month of Baisakh.
    • These showers are useful for tea, jute and rice cultivation. In Assam, these storms are known as Bardoli Chheerha.
• Loo: Hot, dry and oppressing winds blowing in the Northern plains from Punjab to Bihar with higher intensity between Delhi and Patna.

The correct answer is Loo.

Key Points

• Loo:
  • Loo is a type of local wind that blows in some regions of India and Pakistan.
  • Harmful Wind
  • In the plains of northern India and Pakistan, sometimes a very hot and dry wind blows from the west in the months of May and June, usually in the afternoons.
  • It is known as its temperature invariably ranges between 45°C and 50°C. It may cause sunstroke to people.

Additional Information

• The movement of air from high-pressure to low-pressure areas is called wind.
• Winds are broadly classified into three types:
  • Permanent Winds
  • Seasonal Winds
  • Local Winds
• Local Winds are winds that blow only during a particular period of the day or year in a small area.
• Some of the local winds with the area of flow are:
  • Chinook- Rockies
  • Foehn- Alps
  • Loo- Gangetic plain, North India and Pakistan
  • Sirocco- Sahara
  • Mistral- Spain
  • Blizzard- Polar regions of Canada and the USA

The correct answer is Loo - Hot wind.

Key Points

• The Loo is a strong, dusty, gusty, hot, and dry summer wind from the west which blows over the western Indo-Gangetic Plain region of North India and Pakistan.
• Loo winds originate over the Iranian, Baloch, and Thar deserts.
• It is especially strong in the months of May and June.
• Due to its very high temperatures (45 °C–50 °C or 115 °F–120 °F), exposure to it often leads to fatal heatstrokes.
• Since it causes extremely low humidity and high temperatures, the Loo also has a severe drying effect on vegetation leading to widespread browning in the areas affected by it during the months of May and June.
• In tropical regions particularly in northern India during the summer season, local winds called 'loo' are the outcome of the advection process.
• Winds are a result of advection, while air currents are a result of convection.

Additional Information

• Kaal Baisakhi:
  • ​It is a local rainfall and thunderstorm that occurs in Assam and West Bengal and in India or Bangladesh.
    • It occurs in the summer season.
  • It harms life and money and generally occurs in the month of Baisakh (April-May), hence it is known as 'Kaal Baisakhi'.
  • It originated from Chota Nagpur Plateau.
  • Since It is caused by winds coming from the northwest direction, they are also called 'northwestern'.
• Trade winds:
  • ​Trade winds ate winds that blow westward and towards the Equator from the sub-tropical high-pressure belts towards the Intertropical Convergence Zone (ITCZ).
  • They blow from the subtropical high-pressure zone to the equatorial low-pressure zone.
  • They can be found about 30 degrees north and south of the equator.
  • Around 30 degrees in both hemispheres, air begins to descend towards the surface in sub-tropical high-pressure belts known as subtropical ridges.

The correct answer is Bengal and Assam.

Key Points

• Norwesters or the Kalbaishakhi is a local rainfall and thunderstorm which occurs in India and Bangladesh.
• The direction of squalls is mainly from the northwest and they are called Norwesters (Squall – a sudden, violent gusty wind).
• Kalbaishakhi occurs with increasing frequency from March till monsoon establishes over North-East India.
• Kal Baisakhi originates in the Chhotanagpur Plateau, in and around the cities of Ranchi and Jamshedpur.
• In times of incursion of moist air in these elevated regions, amidst high temperatures, these extremely destructive thunderstorms occur.
• These rainfall storms are beneficial for the cultivation of tea in Assam and for the jute and rice and tea cultivated in West Bengal and Bangladesh
• The first sign of Norwester is a low bank of a dark cloud in the northwest region, the upper outline of which has the appearance of an arch.
•  It approaches slowly at first and then rapidly with a strong gust or squall.
• Sometimes the wind blows with almost hurricane force.

 Additional Information

• Tea showers in Assam (they are good for tea, jute, and rice)
• Mango showers in Kerala and coastal areas of Karnataka as they help in the early ripening of mangoes.
• Cherry Blossoms/ Coffee showers in Kerala and nearby areas (good for coffee plantations).

The correct answer is Option 1. 

Key Points

• In West Bengal is the localised thunderstorms associated with violent gust and heavy rain known as ‘Kaal Baisakhi’.
• Kaal Baisakhi
  • ​It is a local rainfall and thunderstorm occur in Assam and West Bengal and in India or Bangladesh.
    • It occurs in the summer season.
  • It harms life and money and generally occurs in the month of Baisakh (April-May), hence it is known as 'Kaal Baisakhi'.
  • It originated from Chota Nagpur Plateau.
  • Since It is caused by winds coming from the north-west direction, they are also called 'norwesters'.​​

Additional Information

• During the summer season, strong humid winds start blowing in many places in India, which are known by different names in different places of the country:
  • Norwesters in East India
  • Cherry Blossoms/Coffee Showers
    • It is the local humid wind of Karnataka that is helpful for the coffee plantation and flows in the hot weather season.
  • Mango- shower
    • It is pre-monsoon rainfall and occurs especially in parts of Kerala, Karnataka and Tamil Nadu.
    • It helps in the early ripening of mangoes and hence it is called 'Mango rain' or Mango-shower.

The correct answer is Option 4.

Key Points

• In West Bengal, the localised thunderstorms associated with violent gust and heavy rain is known as ‘Kaal Baisakhi’.
• Kaal Baisakhi
  • ​It is a local rainfall and thunderstorm occur in Assam and West Bengal and in India or Bangladesh.
    • It occurs in the summer season.
  • It harms life and money and generally occurs in the month of Baisakh (April-May), hence it is known as 'Kaal Baisakhi'.
  • It originated from Chota Nagpur Plateau.
  • Since It is caused by winds coming from the north-west direction, they are also called 'norwesters'.​​

Additional Information

• During the summer season, strong humid winds start blowing in many places in India, which are known by different names in different places of the country:
  • Norwesters in East India
  • Cherry Blossoms/Coffee Showers
    • It is the local humid wind of Karnataka that is helpful for the coffee plantation and flows in the hot weather season.
  • Mango- shower
    • It is pre-monsoon rainfall and occurs especially in parts of Kerala, Karnataka and Tamil Nadu.
    • It helps in the early ripening of mangoes and hence it is called 'Mango rain' or Mango-shower.

The climate of India is described as the ‘monsoon’ type. There are six major controls of the climate of any place. They are latitude, altitude, pressure and wind system, distance from the sea (continentality), ocean currents, and relief features.

Pressure and Winds:

• The climate and associated weather conditions in India are governed by the following atmospheric conditions:
  • Pressure and surface winds;
  • Upper air circulation; and
  • Western cyclonic disturbances and tropical cyclones.
• India lies in the region of northeasterly winds.
• These winds originate from the subtropical high-pressure belt of the northern hemisphere.
• They blow south, get deflected to the right due to the Coriolis force, and move on towards the equatorial low-pressure area.
• Generally, these winds carry very little moisture as they originate and blow over land.
• Therefore, they bring little or no rain

Hence, option 1 is the correct answer.

Westerlies: 

• The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east.
• They are generally found in the middle latitudes between 30 and 60 degrees latitude.
• They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner.

Periodic wind: 

• Periodic winds blow at regular intervals or in regular cycles.
• They are winds that result from localized differences in pressure and temperature.
• For example, land and sea breezes and the seasonal winds.

Local wind:

• Local winds are winds that blow over a limited area. 
• Local winds blow between small low and high-pressure systems.
• They are influenced by local geography. 
• For example, Loo, chinook, blizzard, etc.

The correct answer is option 3 i.e. South-West Monsoon.

• Air moves from the high-pressure area over the southern Indian Ocean in a south-easterly direction and turns right towards low-pressure areas over the Indian subcontinent. These we know as the South-West Monsoon winds.
• South-West monsoon is the rain-bearing seasonal winds that flow from the Arabian Sea to the mainland of India.
• Southwest monsoon winds are referred to as "Indian Summer Monsoon".
• Coriolis effect is responsible for affecting the direction of the wind.
• The force which is exerted by the rotation of the earth is called as Coriolis Force
• The trade winds are also known as Easterlies.
• The trade winds blow from sub-tropical high-pressure areas (30N and S) towards the equatorial low-pressure belt.
• Westerly winds blow from sub-tropical high-pressure belts towards the low-pressure belts.
• Westerly winds develop between 40-65N latitudes.