Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) v2/v1 (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 v2/v1 (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Minimum work in compressor is possible when the value of adiabatic index ānā is equal to 1.27 1 0.75 1.35 1.27 1 0.75 1.35 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The more effective way of increasing efficiency of Carnot engine is to Increase lower temperature Increase higher temperature Decrease lower temperature Decrease higher temperature Increase lower temperature Increase higher temperature Decrease lower temperature Decrease higher temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In an isothermal process, the internal energy Increases Decreases First increases and then decreases Remain constant Increases Decreases First increases and then decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For reversible adiabatic process, change in entropy is Negative Zero Maximum Minimum Negative Zero Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that Heat is supplied to water at temperature below the maximum temperature of the cycle A Rankine cycle receives heat at two places Rankine cycle is hypothetical Carnot cycle can't work with saturated steam Heat is supplied to water at temperature below the maximum temperature of the cycle A Rankine cycle receives heat at two places Rankine cycle is hypothetical Carnot cycle can't work with saturated steam ANSWER DOWNLOAD EXAMIANS APP
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