Rainfall Distribution
Rainfall Distribution
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quiz Questions
Q81
Why does the annual rainfall value show a steady operational decrease as one moves from East to West along the Indo-Gangetic Plains of India?
The Coriolis force drops down to near zero values over Patna
The monsoon winds progressively exhaust their moisture content away from the sea
The Aravalli range blocks the entry of winds into West Bengal completely
The local sub-surface geothermal activity increases near Lucknow
Explanation
The Bay of Bengal branch of the southwest monsoon moves westwards along the Ganga plains, progressively losing its moisture content as it travels further away from its marine source.
Q82
Which of the following descriptions accurately defines the 'As' climate type under the Koeppen regional division scheme for the Indian subcontinent?
Tropical monsoon with a short dry winter
Tropical savanna with dry winters
Tropical climate featuring a dry summer season
Humid subtropical with clear summer window
Explanation
In Koeppen's classification, 'As' represents a tropical climate with a distinct dry summer season, which uniquely describes the operational reality of the Tamil Nadu coast (Coromandel Coast).
Q83
The specific orographic rainfall layout of India indicates that Agumbe in Karnataka records exceptional precipitation. This location sits on which structural face of the Western Ghats?
The leeward interior rain-shadow slope
The windward escarpment face
The internal structural tectonic graben floor
The peripheral boundary margin near Bangalore
Explanation
Agumbe sits on the windward escarpment face of the Western Ghats, directly forcing the moisture-laden Arabian Sea branch of the southwest monsoon to ascend and release heavy precipitation.
Q84
The severe pre-monsoon convective thunderstorms known as 'Mango Showers' over Kerala and coastal Karnataka are triggered by which atmospheric driver?
The sudden southward collapse of the Tibetan upper anticyclone core
Localized intense solar land heating interacting with maritime moisture inflows
The down-slope spilling of cold katabatic currents from Nilgiri peaks
The structural failure of the equatorial easterly current velocity cell
Explanation
Intense thermal heating of the peninsular landmass during summer creates local low pressure, pulling in maritime moisture from the adjoining warm seas to trigger unstable convective thunderstorms.
Q85
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.
Q86
Why does the annual rainfall value show a steady operational decrease as one moves from East to West along the Indo-Gangetic Plains of India?
The Coriolis force drops down to near zero values over Patna
The monsoon winds progressively exhaust their moisture content away from the sea
The Aravalli range blocks the entry of winds into West Bengal completely
The local sub-surface geothermal activity increases near Lucknow
Explanation
The Bay of Bengal branch of the southwest monsoon moves westwards along the Ganga plains, progressively losing its moisture content as it travels further away from its marine source.