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Grid Integration of Renewables Questions and Answers

1.

OSOWOG stands for :

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: D

OSOWOG stands for One Sun One World One Grid.

The initiative, proposed by India and launched with the United Kingdom as Green Grids Initiative-OSOWOG at COP26 in Glasgow in 2021, aims to connect solar power across countries through transnational grids, so energy can flow from where the sun is shining to where it is needed.

The other expansions are invented and unrelated to energy policy.

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2.

In case of magneto hydrodynamic power generation, for maximum power output, the efficiency is

Exam Year(s)

UGC NET - 2013,

Answer: B

For maximum power output in an MHD generator the efficiency is 0.5.

As with any source that has an internal resistance, the power delivered is greatest when the load resistance equals the internal resistance. At that point the voltage across the load is half of the open circuit voltage, so the efficiency in the sense of the key is 0.5.

The values 0.25, 0.75 and 0.4 do not follow from the matching condition. A higher efficiency means a lower power output.

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