Engineering Thermodynamics The hard coke is obtained when carbonization of coal is carried out at 500° to 700°C 900° to 1100°C 300° to 500°C 700° to 900°C 500° to 700°C 900° to 1100°C 300° to 500°C 700° to 900°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - rγ - 1 1 + (1/ rγ - 1) 1 + rγ - 1 1 - (1/ rγ - 1) 1 - rγ - 1 1 + (1/ rγ - 1) 1 + rγ - 1 1 - (1/ rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For reversible adiabatic process, change in entropy is Zero Minimum Negative Maximum Zero Minimum Negative Maximum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Diesel cycle consists of following four processes Two isothermal and two isentropic Two isentropic and two constant pressures Two isentropic, one constant volume and one constant pressure Two isentropic and two constant volumes Two isothermal and two isentropic Two isentropic and two constant pressures Two isentropic, one constant volume and one constant pressure Two isentropic and two constant volumes ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as Temperature None of these Absolute temperature, if volume is kept constant Volume, if temperature is kept constant Temperature None of these Absolute temperature, if volume is kept constant Volume, if temperature is kept constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is 654°C 54°C 108°C 327°C 654°C 54°C 108°C 327°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS