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 v1/v2 v2/v1 (v1 + v2)/v2 (v1 + v2)/v1 v1/v2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is cooled at constant pressure, Both temperature and volume decreases Its volume increases but temperature decreases Both temperature and volume increases Its temperature increases but volume decreases Both temperature and volume decreases Its volume increases but temperature decreases Both temperature and volume increases Its temperature increases but volume decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In S. I. units, the value of the universal gas constant is 8314 J/kg mole-K 8.314 J/kg mole-K 83.14 J/kg mole-K 831.4 J/kg mole-K 8314 J/kg mole-K 8.314 J/kg mole-K 83.14 J/kg mole-K 831.4 J/kg mole-K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Universal gas constant is defined as equal to product of the molecular weight of the gas and Ratio of two specific heats Gas constant Specific heat at constant pressure Specific heat at constant volume Ratio of two specific heats Gas constant Specific heat at constant pressure Specific heat at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The calorific value of gaseous fuel is expressed in kJ/m3 kJ kJ/m2 kJ/kg kJ/m3 kJ kJ/m2 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The door of a running refrigerator inside a room was left open. Which of the following statements is correct? The room will be gradually warmed up The temperature of the air in room will remain unaffected The room will be cooled very slightly The room will be cooled to the temperature inside the refrigerator The room will be gradually warmed up The temperature of the air in room will remain unaffected The room will be cooled very slightly The room will be cooled to the temperature inside the refrigerator ANSWER DOWNLOAD EXAMIANS APP
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