Engineering Thermodynamics A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is Cost will be very high May be possible with lot of sophistications Not possible Theoretically possible Cost will be very high May be possible with lot of sophistications Not possible Theoretically possible ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Clausius statement of second law of thermodynamics Heat can Heat can be transferred from low temperature to high temperature source if COP of process is more than unity Heat can Heat can be transferred for low temperature to high temperature source by using refrigeration cycle Heat can Heat can be transferred from low temperature to high temperature source if COP of process is more than unity Heat can Heat can be transferred for low temperature to high temperature source by using refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant) cp - cv = R cv = R/ γ-1 cv/ cp =R Both (B) and (C) cp - cv = R cv = R/ γ-1 cv/ cp =R Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The specific heat at constant volume is The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume The amount of heat required to raise the temperature of 1 kg of water through one degree Any one of the above The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume The amount of heat required to raise the temperature of 1 kg of water through one degree Any one of the above The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure 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 Maximum temperature is higher Expansion and compression are isentropic Heat rejection is lower Combustion is at constant volume Maximum temperature is higher Expansion and compression are isentropic Heat rejection is lower Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One watt is equal to 1 Nm/hr 1 Nm/s 1 kNm/hr 1 N/m 1 Nm/hr 1 Nm/s 1 kNm/hr 1 N/m ANSWER DOWNLOAD EXAMIANS APP
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