Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same All of these Free expansion or friction resisted expansion/compression process should not be encountered When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same All of these Free expansion or friction resisted expansion/compression process should not be encountered ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Heat rejection is lower Maximum temperature is higher Expansion and compression are isentropic Combustion is at constant volume Heat rejection is lower Maximum temperature is higher Expansion and compression are isentropic Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If the value of n = 0 in the equation pvn = C, then the process is called Constant volume process Constant pressure process Adiabatic process Isothermal process Constant volume process Constant pressure process Adiabatic process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle depends upon Pressure ratio Cut-off ratio and compression ratio Compression ratio Temperature limits Pressure ratio Cut-off ratio and compression ratio Compression ratio Temperature limits ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero pressure will be At the center of the earth At the temperature of - 273 K When molecular momentum of the system becomes zero At sea level At the center of the earth At the temperature of - 273 K When molecular momentum of the system becomes zero At sea level ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carbonization of coal consists of Moulding the finely ground coal under pressure with or without a binding material None of these Drying and crushing the coal to a fine powder Heating the wood with a limited supply of air to temperature not less than 280°C Moulding the finely ground coal under pressure with or without a binding material None of these Drying and crushing the coal to a fine powder Heating the wood with a limited supply of air to temperature not less than 280°C ANSWER DOWNLOAD EXAMIANS APP
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