Rainfall Distribution
Rainfall Distribution
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quiz Questions
Q61
Which mountain system acts as an effective geographical guide to channel the Bay of Bengal branch of the southwest monsoon deep into the Indo-Gangetic Plains?
The Aravalli Range
The Himalayas
The Satpura Range
The Western Ghats
Explanation
The Himalayan range blocks the northward movement of the Bay of Bengal monsoon branch, deflecting these moisture-laden winds westwards along the Indo-Gangetic Plains.
Q62
Why does Western Rajasthan receive very low rainfall from the Arabian Sea branch of the southwest monsoon?
The Aravalli Range lies parallel to the monsoon wind direction
The area is dominated by intense sub-surface geothermal activity
The moisture freezes instantly over the Sambhar Lake
Cold maritime air masses create a permanent inversion layer
Explanation
The Aravalli Range lies parallel to the direction of the Arabian Sea monsoon winds, failing to provide an effective orographic barrier to force the winds to rise.
Q63
Under Koeppen's climatic classification of India, which letter code designates the Coromandel coast featuring a distinct summer dry season?
Aw
As
Cwg
Amw
Explanation
The 'As' letter code denotes a tropical climate with a dry summer season, uniquely applicable to the Coromandel coast of Tamil Nadu which receives winter rainfall.
Q64
Which region of India receives minimal rainfall from the winter-dominant Western Disturbances?
Punjab Plains
Southern Peninsula
Western Uttar Pradesh
Kashmir Valley
Explanation
Western Disturbances affect northwestern and northern India (Punjab, Haryana, Jammu & Kashmir) during winter, leaving Southern India completely unaffected.
Q65
Which microclimatic feature explains why Pune receives significantly less rainfall (around 70 cm) compared to Mumbai (around 220 cm) despite being situated only about 150 km apart?
Pune lacks any vegetative soil cover to retain moisture
Mumbai sits on the windward slope while Pune sits in the leeward rain-shadow zone
A permanent high-pressure inversion cell locks the atmosphere over Pune
The Arabian Sea coastal breeze lacks the momentum to scale the Palghat gap
Explanation
Mumbai is located on the windward side of the Western Ghats mountain range, experiencing massive orographic precipitation, whereas Pune lies on the leeward side within the dry rain-shadow zone.
Q66
In the Trewartha climate regional system, the northern alluvial plains of India stretching through Uttar Pradesh and Bihar are designated under which group symbol?
Am
Caw
Bsh
Ar
Explanation
Trewartha classifies the Indo-Gangetic subtropical humid plain belt under the 'Caw' (Subtropical Humid with Dry Winter) climate symbol.
Q67
The unseasonal winter rainfall received over the coastal strip of Odisha and West Bengal during December is structurally linked to which atmospheric system?
The absolute intensification of the continental Siberian high cell
Shallow low-pressure troughs or depressions migrating from the Bay of Bengal
The down-slope spilling of anabatic winds from the Assam hills
The mechanical failure of the subtropical easterly jet core
Explanation
Occasionally, shallow low-pressure troughs or tropical depressions migrate northward along the Bay of Bengal during late winter, causing unexpected rain along the eastern coastline.
Q68
Which wind layout variation explains why the winter northeast monsoon winds are completely dry over northern India but cause heavy rainfall over the southern Coromandel Coast?
The winds pick up moisture during their transit over the Bay of Bengal
The high-velocity jet stream forces cold evaporation over Lucknow
A massive geothermal inversion cell changes the moisture angle
The mechanical blockage generated directly by the Aravalli range
Explanation
The northeast trade winds originate over land and are continental and dry over North India. However, as they cross the Bay of Bengal, they pick up massive moisture and strike the Tamil Nadu coast as a rain-bearing system.
Q69
Under Koeppen's classification system, the symbol 'Cwg' includes a lowercase letter 'g'. What does this 'g' structurally mean for the Indo-Gangetic Plains climate pattern?
Geothermal pressure line alignment
Ganga type temperature curve where peak heat precedes summer rains
Glacial meltwater moisture index
Gulf branch dominant precipitation matrix
Explanation
In Koeppen's layout, the letter 'g' signifies the 'Ganga type' temperature profile, where the hottest season of the year precedes the summer monsoon rainy season.
Q70
Which structural atmospheric line is responsible for generating the intense winter snowfall across the Western Himalayan ranges of Jammu & Kashmir and Himachal Pradesh?
The Tropical Easterly Current Edge
The Cyclonic Systems of Western Disturbances
The Somali Low Level Inversion Layer
The Inter-Tropical Convergence Front Line
Explanation
The Western Disturbances, embedded in the Subtropical Westerly Jet stream, strike the Western Himalayas and cause heavy snow over high peaks and precipitation over the plains.