Indian Monsoon
Indian Monsoon
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quiz Questions
Q21
Which of the following thermal indices indicates a strong, well-developed rainy season over the Indian subcontinent based on sea surface temperature deviations across the equatorial Pacific?
El Niño Phase
La Niña Phase
Negative Indian Ocean Dipole
Weakened Madden-Julian Oscillation
Explanation
La Niña represents the periodic cooling of sea surface temperatures in the central and eastern equatorial Pacific, which strengthens the Walker Circulation and typically favors a stronger Indian summer monsoon.
Q22
The Arabian Sea branch of the southwest monsoon enters India through which region first?
The Sundarbans Delta
The Western Coastal Plains / Malabar Coast
The Coromandel Coastline
The Gujarat Peninsular Margin
Explanation
The Arabian Sea branch first strikes the western coast of India, specifically hitting the coast of Kerala in early June.
Q23
Which high-altitude feature splits into two branches due to the physical barrier of the Tibetan plateau during winter?
The Equatorial Trade Stream
The Subtropical Westerly Jet Stream
The Tropical Easterly Current
The Somali Low Level Jet
Explanation
The Subtropical Westerly Jet Stream flows across Asia in winter and is bifurcated into northern and southern branches by the high Tibetan Plateau block.
Q24
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.
Q25
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.
Q26
Which of the following regional index variations describes the 'negative phase' of the Indian Ocean Dipole (IOD)?
Warmer waters in the western Indian Ocean near Madagascar
Warmer waters in the eastern Indian Ocean near Sumatra and Indonesia
Complete drying of the equatorial surface currents
The appearance of freezing ice sheets across the Persian Gulf
Explanation
A negative IOD is characterized by warmer sea surface temperatures in the eastern Indian Ocean near Indonesia and cooler temperatures in the western Indian Ocean, which often dampens the Indian monsoon.
Q27
Which mechanism initializes the physical 'Onset' of the Southwest Monsoon over the south-western coast of India?
The strengthening of the Siberian high pressure system
The northward shift of the ITCZ and arrival of moisture-laden cross-equatorial winds
The southward movement of the Subtropical Westerly Jet below Delhi
The cooling down of the core landmass of Central India
Explanation
The northward shift of the ITCZ and the establishment of the low-level Somali Jet Stream carry dense marine moisture, causing the monsoon burst over Kerala.
Q28
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.
Q29
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.
Q30
Which of the following regional index variations describes the 'negative phase' of the Indian Ocean Dipole (IOD)?
Warmer waters in the western Indian Ocean near Madagascar
Warmer waters in the eastern Indian Ocean near Sumatra and Indonesia
Complete drying of the equatorial surface currents
The appearance of freezing ice sheets across the Persian Gulf
Explanation
A negative IOD is characterized by warmer sea surface temperatures in the eastern Indian Ocean near Indonesia and cooler temperatures in the western Indian Ocean, which often dampens the Indian monsoon.