Yimiphi imithombo yamandla engaba khona enjini?
Context:Injini noma imoto iwumshini owenzelwe ukuguqula uhlobo olulodwa noma ngaphezulu lwamandla abe amandla omshini. Imithombo yamandla etholakalayo ihlanganisa amandla angahle abe khona (isib. amandla adonsela phansi omhlaba njengoba asetshenziswa ekwakhiweni kwamandla kagesi), amandla okushisa (isib. amandla okushisa komhlaba), amandla amakhemikhali, amandla kagesi namandla enuzi (ngokusuka ekuhlukaneni kwe-nuclear noma i-nuclear fusion). Eziningi zalezi zinqubo zikhiqiza ukushisa njengendlela yamandla aphakathi nendawo, ngakho izinjini zokushisa zibaluleke ngokukhethekile. Ezinye izinqubo zemvelo, njengama-convection cells asemkhathini aguqula ukushisa kwemvelo kube ukunyakaza (ngokwesibonelo ngesimo semisinga yomoya ekhuphukayo). Amandla omshini abaluleke kakhulu kwezokuhamba, kodwa futhi adlala indima ezinqubweni eziningi zezimboni ezinjengokusika, ukugaya, ukuchoboza, nokuxuba.
Imithombo engaba khona yenjini ihlanganisa amandla angaba khona, amandla okushisa, amandla amakhemikhali, amandla kagesi namandla enuzi.