Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by None of these ηm = (B.P × I.P)/100 ηm = B.P/I.P ηm = I.P/B.P None of these ηm = (B.P × I.P)/100 ηm = B.P/I.P ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The magneto in an automobile is basically Magnetic circuit Capacitor D.C. generator Transformer Magnetic circuit Capacitor D.C. generator Transformer ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Compression ratio of I.C. Engines is The ratio of volumes of air in cylinder before compression stroke and after compression stroke Swept volume/cylinder volume Ratio of pressure after compression and before compression Volume displaced by piston per stroke and clearance volume in cylinder The ratio of volumes of air in cylinder before compression stroke and after compression stroke Swept volume/cylinder volume Ratio of pressure after compression and before compression Volume displaced by piston per stroke and clearance volume in cylinder ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine? Inlet valve closing after bottom dead center Exhaust valve closing after top dead center Inlet valve closing before bottom dead center Inlet valve opening before top dead center Inlet valve closing after bottom dead center Exhaust valve closing after top dead center Inlet valve closing before bottom dead center Inlet valve opening before top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following is false statement? Oil sludge in the engine crank case Detonation Formation of hard coating on piston skirts Piston ring and cylinder wear Oil sludge in the engine crank case Detonation Formation of hard coating on piston skirts Piston ring and cylinder wear ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The octane number of petrol, generally available, is 40 to 60 60 to 80 80 to 100 20 to 40 40 to 60 60 to 80 80 to 100 20 to 40 ANSWER DOWNLOAD EXAMIANS APP
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