WHAT_EFFICIENCIES_OF_THERMIONIC_POWER_GENERATOR_HAVE_BEEN_REALISED??$ – McqOptions

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1.	WHAT_EFFICIENCIES_OF_THERMIONIC_POWER_GENERATOR_HAVE_BEEN_REALISED??$
A.	50-60%
B.	40-50%
C.	10-20%
D.	30-40%
Answer» D. 30-40%

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