Geography - Climate In India Topics
Geography - Climate In India
Choose question count and time — session stays in your browser only.
filter_alt Topics
quiz Questions
Q81
The core line of the Inter-Tropical Convergence Zone (ITCZ) during the winter season shifts completely away from India and settles over which general region?
The Tibetan Plateau
The Southern Indian Ocean
The Mediterranean Sea
The Tropic of Cancer
Explanation
During winter, the sun migrates southwards, causing the ITCZ to shift into the Southern Hemisphere over the southern Indian Ocean, which establishes northeast trade winds over India.
Q82
Which of the following mountain ranges acts as a barrier to the Bay of Bengal branch of the monsoon, forcing it to cause exceptionally heavy rain in Meghalaya?
Zanskar Range
Garo, Khasi, and Jaintia Hills
Vindhyan Range
Satpura Range
Explanation
The Garo, Khasi, and Jaintia Hills in Meghalaya intercept the Bay of Bengal branch of the southwest monsoon, funneling the winds and causing extreme orographic precipitation.
Q83
What is the primary thermodynamic reason why air masses warming up over the Thar Desert do not cause significant rainfall during the summer monsoon?
The absolute absence of dust particles in the desert sky
Atmospheric subsidence and upper-level dry air inversion
Freezing geothermal pressure cells near the surface
The immediate freezing of condensation nuclei
Explanation
The upper atmospheric anti-cyclonic circulation and subsidence of dry air masses over Rajasthan, combined with lack of mountain barriers, create an inversion layer that suppresses cloud formation.
Q84
Under Koeppen's system, the 'Aw' climate symbol denotes which specific climatic setup across large parts of the Indian Peninsula?
Steppe semi-arid interior zone
Tropical Savanna with a distinct dry winter
Humid subtropical northern plain block
Extreme cold mountain tundra zone
Explanation
The 'Aw' symbol represents a Tropical Savanna climate type, characterized by a distinct dry winter season, covering most of the peninsular plateau area south of the Tropic of Cancer.
Q85
The tracking factor known as 'Madden-Julian Oscillation' (MJO) affects the Indian monsoon by operating through which mechanism?
A stationary polar air mass blocking winter winds
An eastward-travelling equatorial wave of convective cloudiness and rainfall
A sudden geothermal heating inside the Arabian Sea basin
A high-velocity dust storm track moving from the Sahara
Explanation
The MJO is an eastward moving convective cloud band along the equator that periodically enhances or suppresses rainfall over the Indian Ocean depending on its phase.
Q86
Which of the following states in India is typically the last to see the complete withdrawal of the Southwest Monsoon?
Rajasthan
Punjab
Tamil Nadu
Gujarat
Explanation
The Southwest Monsoon withdraws first from northwest India in September and moves southwards, completely leaving the southern peninsula (specifically Tamil Nadu/Kerala margins) last by early window of October/November.
Q87
The cold-core upper tropospheric winds that accelerate during winter south of the Himalayas are known as what?
Tropical Easterly Jet
Subtropical Westerly Jet
Somali Jet Track
Equatorial Trade Flow
Explanation
The Subtropical Westerly Jet stream occupies a position south of the Himalayas during the winter months, steering extra-tropical cyclones into India.
Q88
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.
Q89
The standard operational definition for the formal 'Onset of Monsoon' over Kerala by the India Meteorological Department (IMD) requires at least what percentage of designated weather stations to record 2.5 mm or more rain for two consecutive days?
40 percent
50 percent
60 percent
75 percent
Explanation
According to IMD criteria, if after May 10th, 60% or more of the 14 designated stations in Kerala and Lakshadweep record a minimum of 2.5 mm of rainfall for two consecutive days, the monsoon onset over Kerala is declared.
Q90
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.