Uranium is not a combustion fuel for a conventional steam power plant; it is nuclear fuel used in a reactor to produce heat through fission. Coal, natural gas and oil can all be burned in thermal/steam plants.
Formula / Key Relation
Fossil steam plant: chemical combustion heat
Nuclear plant: fission heat
Detailed Explanation
Concept & Reasoning
Both conventional fossil thermal plants and nuclear plants ultimately may use steam turbines, but the heat source differs. In a conventional steam power plant, chemical combustion supplies heat. In a nuclear station, a reactor replaces the furnace/boiler combustion heat source.
How to Solve It in the Exam
Steam turbine does not automatically mean 'steam power plant' uses every heat source as fuel.
Important Exam Point
Interpret the conventional plant context in the options.
Related Revision Path
This question sits in the revision path Power Plant Engineering → Steam Power Plants → Fuels .
Quick Trick
Steam turbine does not automatically mean 'steam power plant' uses every heat source as fuel.
Common Mistake
Choosing natural gas because combined-cycle plants also use gas turbines; gas can still raise steam in boilers/HRSG systems.
Exam Tip
Interpret the conventional plant context in the options.
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