The ratio of work output of an engine to the fuel energy burnt is called ?
AMechanical efficiency
BThermal efficiency
CVolumetric efficiency
DCompression ratio
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ബന്ധം കണ്ടെത്തി പൂരിപ്പിക്കുക. ശനി : ജോവിയൻ ഗ്രഹം
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