Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Expansion and compression are isentropic Heat rejection is lower Maximum temperature is higher Combustion is at constant volume Expansion and compression are isentropic Heat rejection is lower Maximum temperature is higher Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The unit of temperature in S.I. units is Centigrade Fahrenheit Celsius Kelvin Centigrade Fahrenheit Celsius Kelvin ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Carnot cycle depends upon Volume compression ratio Cut-off ratio and compression ratio Temperature limits Pressure ratio Volume compression ratio Cut-off ratio and compression ratio Temperature limits Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On volume basis, air contains following parts of oxygen 25 21 77 23 25 21 77 23 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the expansion or compression takes place according to the law pvn = C, the process is known as Adiabatic process Hyperbolic process Polytropic process Isothermal process Adiabatic process Hyperbolic process Polytropic process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units) Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU/W1 - 2 Q1 - 2 = dU × W1 - 2 Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU/W1 - 2 Q1 - 2 = dU × W1 - 2 ANSWER DOWNLOAD EXAMIANS APP
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