Engineering Thermodynamics First law of thermodynamics Enables to determine change in internal energy of the system Provides relationship between heat, work and internal energy All of these Does not enable to determine change in entropy Enables to determine change in internal energy of the system Provides relationship between heat, work and internal energy All of these Does not enable to determine change in entropy ANSWER DOWNLOAD EXAMIANS APP
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 For same compression ratio and for same heat added Otto cycle is more efficient than Diesel cycle Diesel cycle is more efficient than Otto cycle Efficiency depends on other factors Both Otto and Diesel cycles are equally efficient Otto cycle is more efficient than Diesel cycle Diesel cycle is more efficient than Otto cycle Efficiency depends on other factors Both Otto and Diesel cycles are equally efficient ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will Increase Decrease Remain unchanged Increase/decrease depending on application Increase Decrease Remain unchanged Increase/decrease depending on application ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature. None of these Decreases Increases Remains constant None of these Decreases Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If the value of n = 0 in the equation pvn = C, then the process is called Constant volume process Constant pressure process Isothermal process Adiabatic process Constant volume process Constant pressure process Isothermal process Adiabatic process ANSWER DOWNLOAD EXAMIANS APP
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