Engineering Thermodynamics A closed system is one in which Neither mass nor energy crosses the boundaries of the system Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Mass does not cross boundaries of the system, though energy may do so Neither mass nor energy crosses the boundaries of the system Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Mass does not cross boundaries of the system, though energy may do so ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to 1 ∝ γ 1 ∝ γ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant) 1.5 Ru × T 3 Ru × T Ru × T 2 Ru × T 1.5 Ru × T 3 Ru × T Ru × T 2 Ru × T ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle 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 Expansion and compression are isentropic ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics First law of thermodynamics furnishes the relationship between Various thermodynamic processes Heat and work Heat, work and properties of the system Various properties of the system Various thermodynamic processes Heat and work Heat, work and properties of the system Various properties of the system ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The standard value of atmospheric pressure taken at sea level is All of these 1.013 bar 760 mm of Hg 1013 × 102 N/m2 All of these 1.013 bar 760 mm of Hg 1013 × 102 N/m2 ANSWER DOWNLOAD EXAMIANS APP
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