Seasons of India
Seasons of India
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quiz Questions
Q51
Which of the following describes the behavior of the sub-tropical westerly jet stream across Asia when the summer monsoon sets in over mainland India?
It shifts south to run parallel to the Vindhyas
It shifts completely north of the Tibetan Plateau
It drops down to the surface level over the Thar desert
It breaks into multiple cyclonic eddies in the Bay of Bengal
Explanation
The sub-tropical westerly jet stream shifts completely north of the Tibetan Plateau, clearing the Indian subcontinent to allow the entry of the southwest monsoon flow.
Q52
The dry, dust-laden summer winds named 'Loo' display their maximum operational intensity and frequency during which specific timeframe?
January and February
May and June
August and September
October and November
Explanation
The Loo blows with peak intensity across Northern India during the hot dry months of May and June, before the arrival of the monsoon rains.
Q53
What is the baseline structural reason for the sharp drop in temperatures across North India during the transition from November to December?
The absolute cessation of the Earth's planetary rotation
Southward solar migration and cold continental air mass advection
The structural inversion of the equatorial oceanic conveyor belt
The thermal heating of the coastal continental shelf near Mumbai
Explanation
The southward apparent migration of the sun reduces solar insolation, while cold continental air masses from the high latitudes flow into Northern India under clear skies.
Q54
The dynamic retreat of the Southwest Monsoon from Northern India during October is characterized by the rapid replacement of the monsoon trough with which atmospheric feature?
An intense tropical low-pressure cell
A continental high-pressure system
An active westerly jet convergence corridor
A warm maritime cyclonic vortex
Explanation
As temperatures drop in autumn, the low-pressure monsoon trough weakens and retreats southward, replaced by a dry continental high-pressure system over North India.
Q55
The pre-monsoon convective thunderstorms in East India, called Nor'westers, derive their high velocity and destructive nature from the convergence of warm moist air with cold dry air masses descending from where?
The Arabian Sea surface layer
The Chota Nagpur Plateau or mountain gaps
The Maldives Equatorial current core
The Thar Desert thermal plume
Explanation
Nor'westers develop when hot, humid air from the Bay of Bengal collides with cold, dry air masses originating over the Chota Nagpur Plateau or the Himalayas.
Q56
The winter rain brought to northwestern plains by Western Disturbances originates over which distant maritime basin?
The South China Sea
The Mediterranean Sea
The Sea of Japan
The Tasman Sea Core
Explanation
Western Disturbances are extra-tropical storms that originate over the Mediterranean Sea and travel eastward across West Asia to enter northwest India.
Q57
The dynamic retreat of the Southwest Monsoon from Northern India during October is characterized by the rapid replacement of the monsoon trough with which atmospheric feature?
An intense tropical low-pressure cell
A continental high-pressure system
An active westerly jet convergence corridor
A warm maritime cyclonic vortex
Explanation
As temperatures drop in autumn, the low-pressure monsoon trough weakens and retreats southward, replaced by a dry continental high-pressure system over North India.
Q58
The pre-monsoon convective thunderstorms in East India, called Nor'westers, derive their high velocity and destructive nature from the convergence of warm moist air with cold dry air masses descending from where?
The Arabian Sea surface layer
The Chota Nagpur Plateau or mountain gaps
The Maldives Equatorial current core
The Thar Desert thermal plume
Explanation
Nor'westers develop when hot, humid air from the Bay of Bengal collides with cold, dry air masses originating over the Chota Nagpur Plateau or the Himalayas.
Q59
The winter rain brought to northwestern plains by Western Disturbances originates over which distant maritime basin?
The South China Sea
The Mediterranean Sea
The Sea of Japan
The Tasman Sea Core
Explanation
Western Disturbances are extra-tropical storms that originate over the Mediterranean Sea and travel eastward across West Asia to enter northwest India.
Q60
The multi-week dry spell observed within the active phase of the southwest monsoon is structurally linked to which atmospheric event?
The strengthening of the Tropical Easterly Jet
The northward shift of the monsoon trough axis
The lowering of sea surface temperatures in the Arabian Sea
The formation of a deep low-pressure center over Mumbai
Explanation
A monsoon break occurs over the plains when the low-pressure monsoon trough shifts northwards toward the foothills of the Himalayas, leaving Central India dry.