Automobile Engineering in ME The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power) P/F.P. P/I.P. F.P/B.P. I.P/B.P. P/F.P. P/I.P. F.P/B.P. I.P/B.P. ANSWER DOWNLOAD EXAMIANS APP
Automobile Engineering in ME If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on Stoichiometric mixture Most economical mixture Too lean mixture Too rich mixture Stoichiometric mixture Most economical mixture Too lean mixture Too rich mixture ANSWER DOWNLOAD EXAMIANS APP
Automobile Engineering in ME The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as Axial force diagram None of these Valve timing diagram Indicator diagram Axial force diagram None of these Valve timing diagram Indicator diagram ANSWER DOWNLOAD EXAMIANS APP
Automobile Engineering in ME The crankcase dilution means Dilution of lubrication oil by fuel in the crankcase D. Dilution Dilution of oil by water in the crankcase Dilution of mixture passing through crankcase in two stroke engines Dilution of fuel in the crankcase Dilution of lubrication oil by fuel in the crankcase D. Dilution Dilution of oil by water in the crankcase Dilution of mixture passing through crankcase in two stroke engines Dilution of fuel in the crankcase ANSWER DOWNLOAD EXAMIANS APP
Automobile Engineering in ME The valve overlap in four stroke petrol engines is approximately 30° 120° 60° 90° 30° 120° 60° 90° ANSWER DOWNLOAD EXAMIANS APP
Automobile Engineering in ME The basic purpose of a four wheel drive (4WD) system is that it Ensures that effective braking can be performed, even on slippery surfaces Eliminates the need of snow tyres, tyre chains, etc. Ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces Delivers improved cornering on dry road surfaces Ensures that effective braking can be performed, even on slippery surfaces Eliminates the need of snow tyres, tyre chains, etc. Ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces Delivers improved cornering on dry road surfaces ANSWER DOWNLOAD EXAMIANS APP
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