MCQs
Total Questions : 136
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Question 91. With reference to ‘Indian Ocean Dipole (IOD)’ sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?
- IOD phenomenon is characterised by a difference in sea surface temperature between in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.
- An IOD phenomenon can influence an El Nino’s impact on the monsoon.
Answer: Option A. -> Only 2
Answer: (a)
Answer: (a)
Answer: Option C. -> North-West
Answer: (c)
Answer: (c)
Answer: Option B. -> Leh
Answer: (b)
Answer: (b)
Answer: Option A. -> South-West Monsoon
Answer: (a)
Answer: (a)
Answer: Option B. -> Tamil Nadu
Answer: (b)
The period October to December is referred to as Northeast Monsoon season over peninsular India. It is the major period of rainfall activity over Tamil Nadu as it receives 48% of its annual rainfall during the Northeast monsoon season.
Coastal districts of the State get nearly 60% of the annual rainfall and the interior districts get about 40-50% of the annual rainfall.
Answer: (b)
The period October to December is referred to as Northeast Monsoon season over peninsular India. It is the major period of rainfall activity over Tamil Nadu as it receives 48% of its annual rainfall during the Northeast monsoon season.
Coastal districts of the State get nearly 60% of the annual rainfall and the interior districts get about 40-50% of the annual rainfall.
Answer: Option A. -> Western Coast
Answer: (a)
Summer monsoon (May to September) experiences South-Western monsoon. The Western Ghats are the first highlands of India that the SW Monsoon winds encounter.
The presence of abundant highlands like the Western Ghats and the Himalayas right across the path of the SW Monsoon winds are the main cause of the substantial orographic precipitation all over the Indian subcontinent.
The Western Ghats rise very abruptly from the Western Coastal Plains of the subcontinent making effective orographic barriers for the Monsoon winds.
Answer: (a)
Summer monsoon (May to September) experiences South-Western monsoon. The Western Ghats are the first highlands of India that the SW Monsoon winds encounter.
The presence of abundant highlands like the Western Ghats and the Himalayas right across the path of the SW Monsoon winds are the main cause of the substantial orographic precipitation all over the Indian subcontinent.
The Western Ghats rise very abruptly from the Western Coastal Plains of the subcontinent making effective orographic barriers for the Monsoon winds.
Answer: Option A. -> Summer months
Answer: (a)
According to the thermal theory, during the hot subtropical summers, the massive landmass of the Indian Peninsula heats up at a different rate than the surrounding seas, resulting in a pressure gradient from south to north.
This causes the flow of moisture-laden winds from sea to land. On reaching land, these winds rise because of the geographical relief, cooling adiabatically and leading to Orographic rains, better known as the southwest monsoon.
Answer: (a)
According to the thermal theory, during the hot subtropical summers, the massive landmass of the Indian Peninsula heats up at a different rate than the surrounding seas, resulting in a pressure gradient from south to north.
This causes the flow of moisture-laden winds from sea to land. On reaching land, these winds rise because of the geographical relief, cooling adiabatically and leading to Orographic rains, better known as the southwest monsoon.
Answer: Option B. -> Only 2 and 4
Answer: (b)
Answer: (b)
Answer: Option C. -> Western disturbances
Answer: (c)
A Western Disturbance is an extratropical storm originating in the Mediterranean region that brings sudden rain to the northwestern parts of the Indian subcontinent during the winter season.
It is a non-monsoonal precipitation pattern driven by the westerlies. Western Disturbances are important for the development of the Rabi crop (wheat).
Answer: (c)
A Western Disturbance is an extratropical storm originating in the Mediterranean region that brings sudden rain to the northwestern parts of the Indian subcontinent during the winter season.
It is a non-monsoonal precipitation pattern driven by the westerlies. Western Disturbances are important for the development of the Rabi crop (wheat).
Answer: Option C. -> Both (A) and (R) are true and (R) is the correct explanation of (A)
Answer: (c)
Answer: (c)
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