Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 + (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 1 - (1/ rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant Pressure Temperature Internal energy Volume Pressure Temperature Internal energy Volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following laws is applicable for the behaviour of a perfect gas? Boyle's law Charles ‘law All of these Gay Lussac’s law Boyle's law Charles ‘law All of these Gay Lussac’s law ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A sudden fall in the barometer reading is a sign of approaching Storm Rains Fine weather Cold wave Storm Rains Fine weather Cold wave ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of a Carnot engine depends on Design of engine Temperatures of source and sink Working substance Size of engine Design of engine Temperatures of source and sink Working substance Size of engine ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is Not possible Theoretically possible May be possible with lot of sophistications Cost will be very high Not possible Theoretically possible May be possible with lot of sophistications Cost will be very high ANSWER DOWNLOAD EXAMIANS APP
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