Seasons of India
Seasons of India
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quiz Questions
Q41
What term is traditionally used to describe the local winter rain received over the plains of Punjab and Haryana, vital for Wheat crops?
Kalbaisakhi
Mahawat
Loo Surge
Cherry Bloom
Explanation
The winter rainfall caused by Western Disturbances in northwestern India is locally referred to as 'Mahawat' or 'Mawat', and is highly beneficial for Rabi agriculture.
Q42
Which of the following local microclimatic phenomena is characterized as a cold, dry wind rushing down the slopes of the Western Himalayas during clear winter nights?
Anabatic Winds
Katabatic Winds
Kalbaisakhi Winds
Loo Currents
Explanation
Katabatic winds (or valley descent breezes) occur on cold, clear winter nights when dense, radiatively cooled air at high mountain peaks slides down under gravity into the valleys below.
Q43
Which thermodynamic process explains why the descending air mass on the eastern side of the Western Ghats experiences a sharp drop in relative humidity, creating a rain-shadow zone?
Adiabatic Expansion Cooling
Adiabatic Compression Heating
Latent Heat Dissipation via Sublimation
Radiative Boundary Layer Inversion
Explanation
As the air mass descends the leeward side of the mountains, it undergoes adiabatic compression heating. This raises its temperature and expands its moisture capacity, rapidly lowering its relative humidity and stopping rainfall.
Q44
During the post-monsoon retreating cycle in October, why do severe convective tropical depressions frequently track into the coastal deltas of Andhra Pradesh and Odisha rather than Gujarat?
The Arabian Sea maintains a permanent freezing surface current
The high thermal energy and upper-level steering in the Bay of Bengal direct cyclones westward
The Aravalli Range acts as a thermal magnet to repel cyclones completely
The Coriolis Force drops to zero over the western shoreline of India
Explanation
The high surface water temperature and low-pressure cell layout in the Bay of Bengal during autumn trigger multiple cyclonic systems that are steered westward into the east coast by the easterly upper air currents.
Q45
Which atmospheric factor serves as the immediate precursor for a severe 'Cold Wave' condition to sweep across northwestern plains like Punjab and Rajasthan during late December?
The sudden structural strengthening of the localized thermal low-pressure trough
The passage of a Western Disturbance followed by clear skies and cold northerly winds
The premature arrival of the warm Somali cross-equatorial air surge
The absolute stagnation of the subtropical easterly jet stream over Delhi
Explanation
The clearing of the sky following the passage of a Western Disturbance allows intense terrestrial radiation loss, while cold, dry continental winds originating from snow-clad Himalayan slopes plunge southwards.
Q46
The core axis of the Monsoon Trough over Northern India typically displays a diurnal structural oscillation toward which geographical barrier?
The Vindhyan Range foothills
The Himalayan foothills
The Chota Nagpur boundary slopes
The Thar Desert eastern margin
Explanation
The Monsoon Trough displays periodic spatial oscillations; its migration northward toward the foothills of the Himalayas leads to a suppression of rainfall over the plains, creating a monsoon break.
Q47
The sudden arrival of heavy convective rainfall accompanied by violent thunder in the southern peninsula during mid-to-late May is meteorologically termed by what expression?
Monsoon Retraction Phase
Pre-monsoon Convective Showers
Western Disturbance Spill
Subtropical Anticyclonic Surge
Explanation
Pre-monsoon showers that occur in May before the formal arrival of the monsoon are driven by intense local convective activity and are frequently called Mango Showers or Blossom Showers.
Q48
The core of the heat low-pressure cell that develops over northern India during peak summer is structurally centered over which specific region?
The Malabar Coastal Plain
The Thar Desert and Northwest India
The Coromandel Delta line
The high altitude valleys of Ladakh
Explanation
During May and June, intense solar insolation creates a deep, continuous low-pressure trough stretching from the Thar Desert of Rajasthan to the Chota Nagpur Plateau of Jharkhand.
Q49
The fierce convective wind storms known as 'Kalbaisakhi' occur during spring months mostly over which regional basin?
The Indus Basin Plain
The Lower Ganga and Brahmaputra Valleys
The Narmada Rift Valley
The Godavari Delta Plain
Explanation
Kalbaisakhi or Nor'westers are violent localized thunderstorms accompanied by heavy rain and hail that affect West Bengal, Assam, and Odisha during April and May.
Q50
What atmospheric process initializes the retreat of the summer monsoon away from northwest India during early September?
The strengthening of the equatorial counter-current
The southward migration of the sun and weakening of the thermal low
The sudden freezing of the Tibetan Upper Tropospheric core
The emergence of a hot current in the Palk Strait
Explanation
The apparent southward migration of the sun weakens the thermal low-pressure trough over northwest India, leading to a reversal of the pressure gradient and wind direction.