Internal Combustion Engines The ratio of the brake power to the indicated power is called Indicated thermal efficiency Mechanical efficiency Volumetric efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency Volumetric efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The cam shaft of a four stroke I.C. engine running at 1500 rpm will run at 1500 rpm 3000 rpm 750 rpm Any value independent of engine speed 1500 rpm 3000 rpm 750 rpm Any value independent of engine speed ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in meters, N = Speed of engine in r.p.m., S = Spring balance reading in newtons, D = Dia. of brake drum in meters, and d = Dia. of rope in meters) P = (Wl × 2πN)/60 watts P = [(W - S) πDN]/60 watts P = [(W - S) π (D + d) N]/60 watts All of these P = (Wl × 2πN)/60 watts P = [(W - S) πDN]/60 watts P = [(W - S) π (D + d) N]/60 watts All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to Inject fuel in a chamber of high pressure at the end of compression stroke Ensure that penetration is not high Inject fuel at a high velocity to facilitate atomization All of these Inject fuel in a chamber of high pressure at the end of compression stroke Ensure that penetration is not high Inject fuel at a high velocity to facilitate atomization All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Polymerization is a chemical process in which molecules of a compound become Slowed down Larger Smaller Liquid Slowed down Larger Smaller Liquid ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The _________ engines can work on very lean mixture of fuel. Both (A) and (B) Compression ignition None of these Spark ignition Both (A) and (B) Compression ignition None of these Spark ignition ANSWER DOWNLOAD EXAMIANS APP
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