Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = B.P/I.P ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ηm = B.P/I.P ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in spark ignition engines can be reduced by Retarding the spark Both (A) and (B) None of these Increasing the engine speed Retarding the spark Both (A) and (B) None of these Increasing the engine speed ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines As a result of detonation in an I.C. engine, following parameter attains very high value Peak pressure Rate of rise of pressure Peak temperature Rate of rise of temperature Peak pressure Rate of rise of pressure Peak temperature Rate of rise of temperature ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The magneto in an automobile is basically Transformer Magnetic circuit D.C. generator Capacitor Transformer Magnetic circuit D.C. generator Capacitor ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A spark plug gap is kept from 0.6 to 1.0 mm 0.4 to 0.9 mm 0.3 to 0.7 mm 0.2 to 0.8 mm 0.6 to 1.0 mm 0.4 to 0.9 mm 0.3 to 0.7 mm 0.2 to 0.8 mm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mean effective pressure obtained from engine indicator indicates the Instantaneous pressure at any instant Minimum pressure Average pressure Maximum pressure developed Instantaneous pressure at any instant Minimum pressure Average pressure Maximum pressure developed ANSWER DOWNLOAD EXAMIANS APP