Internal Combustion Engines Installation of supercharger on a four cycle diesel engine can result in the following percentage increase in power Up to 35% Up to 75% Up to 50% Up to 100% Up to 35% Up to 75% Up to 50% Up to 100% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in diesel engines may be prevented by All of these Reducing the delay period Raising the compression ratio Increasing the inlet pressure of air All of these Reducing the delay period Raising the compression ratio Increasing the inlet pressure of air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called Relative efficiency Overall efficiency Mechanical efficiency Volumetric efficiency Relative efficiency Overall efficiency Mechanical efficiency Volumetric efficiency 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 = [(W - S) πDN]/60 watts All of these P = [(W - S) π (D + d) N]/60 watts P = (Wl × 2πN)/60 watts P = [(W - S) πDN]/60 watts All of these P = [(W - S) π (D + d) N]/60 watts P = (Wl × 2πN)/60 watts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is 264 cm3 286 cm3 252 cm3 248 cm3 264 cm3 286 cm3 252 cm3 248 cm3 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The purpose of testing an internal combustion engine is All of these To determine the information, which cannot be obtained by calculations To conform the data used in design, the validity of which may be doubtful To satisfy the customer regarding the performance of the engine All of these To determine the information, which cannot be obtained by calculations To conform the data used in design, the validity of which may be doubtful To satisfy the customer regarding the performance of the engine ANSWER DOWNLOAD EXAMIANS APP
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