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 Minimum work in compressor is possible when the value of adiabatic index ‘n’ is equal to 1.35 0.75 1 1.27 1.35 0.75 1 1.27 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle consists of following four processes Two isentropic, one constant volume and one constant pressure Two isentropic and two constant volumes Two isentropic and two constant pressures Two isothermal and two isentropic Two isentropic, one constant volume and one constant pressure Two isentropic and two constant volumes Two isentropic and two constant pressures Two isothermal and two isentropic ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which law states that the internal energy of a gas is a function of temperature? Joule's law There is no such law Boyle's law Charles' law Joule's law There is no such law Boyle's law Charles' law ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A diathermic wall is one which Discourages thermal interaction Permits thermal interaction Encourages thermal interaction Prevents thermal interaction Discourages thermal interaction Permits thermal interaction Encourages thermal interaction Prevents thermal interaction ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One watt is equal to 1 kNm/hr 1 Nm/s 1 N/m 1 Nm/hr 1 kNm/hr 1 Nm/s 1 N/m 1 Nm/hr ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS