Olympiad Test: Winds Storms & Cyclones - RRB Group D / RPF Constable MCQ

The First Stage warning Pre Cyclone Watch, issued 72 hours in advance. It contains an early warning about the development of a cyclonic disturbance in the north Indian Ocean, its likely intensification into a tropical cyclone and the coastal belt likely to experience adverse weather.

There exists a negative relation between pressure and temperature. When temperature increases pressure will fall and vice versa. That is why, pressure increases from equatorial region towards the polar region.

In coastal areas cyclone is followed by flood. The water bring about by the high velocity wind cause flood.

Reduced air pressure can lead to various weather changes. One key effect is an increase in wind speed. This happens because, with lower pressure, air moves more rapidly to equalise the pressure difference.

• Increased wind speed occurs as air rushes from high-pressure areas to low-pressure areas.
• This phenomenon can cause stronger winds during storms.
• Other factors like rain or sunlight do not directly cause changes in wind speed due to pressure variations.

Therefore, the main consequence of reduced air pressure is an increase in wind speed.

Warm air is lighter than cold air. Lighter air moves upward to create low pressure area.

Air expands on heating and condenses on cooling due to gaining kinetic energy.

Rapid expansion of air due to lightening cause thunder. Lightening occurs when two charged clouds come in contact of each other.

The northern region of India is generally not affected by cyclones. This is due to its geographical location, which is further away from the ocean.

In contrast:

• The eastern coastal region is frequently impacted by cyclones.
• The southern region can also experience cyclones.
• The eastern region faces similar threats due to its proximity to the sea.

Therefore, the northern region is the correct answer.

Wind air is generated due to uneven heating of earth. More heated area develop low pressure and than other and air blows from high pressure to low pressure.

High speed wind can be destructive due to large amount of kinetic energy associate with it to uproot trees and buildings.

Sudden occurrence of light due to friction of clouds is called lightening. It occurs due to interaction between two charged clouds.

Wind speed results in storm which can be highly destructive. High speed wind can uproot the tree and destroy the buildings.

During flood, contamination of water causes shortage of drinking water as water bodies get contaminated with harmful substances.

Hot airs are lighter and move upwards, for escape of hot air from the room, ventilators are provided just beneath the roof in the walls.

Building can be protected from lightening by using lightening rod at the top of building to carry the charge of lightening to the ground.

Violent storms accompanied by high wind speed is called cyclone. It brings heavy rain along with high velocity wind to cause destruction.

The eye of storm is a calm area around which wind blows very rapidly.

Humidity in air is maximum in monsoon season, because lots of raining occurs during this period of time.