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) (v1 + v2)/v2 v1/v2 v2/v1 (v1 + v2)/v1 (v1 + v2)/v2 v1/v2 v2/v1 (v1 + v2)/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The entropy may be expressed as a function of All of these Heat and work Pressure and temperature Temperature and volume All of these Heat and work Pressure and temperature Temperature and volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for petrol engines is 10 to 20 15 to 30 3 to 6 5 to 8 10 to 20 15 to 30 3 to 6 5 to 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents Heat rejected None of the listed here Heat absorbed Either heat absorbed or heat rejected Heat rejected None of the listed here Heat absorbed Either heat absorbed or heat rejected ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Stirling cycle is __________ Carnot cycle. Less than Greater than Equal to None of these Less than Greater than Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Gases have Only one value of specific heat Under some conditions one value and sometimes two values of specific heat No value of specific heat Two values of specific heat Only one value of specific heat Under some conditions one value and sometimes two values of specific heat No value of specific heat Two values of specific heat ANSWER DOWNLOAD EXAMIANS APP
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