Engineering Thermodynamics Producer gas is obtained by Passing air and a large amount of steam over waste coal at about 650°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Carbonization of bituminous coal Passing steam over incandescent coke Passing air and a large amount of steam over waste coal at about 650°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Carbonization of bituminous coal Passing steam over incandescent coke ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One molecule of oxygen is __________ times heavier than the hydrogen atom. 12 32 16 14 12 32 16 14 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents None of the listed here Heat rejected Either heat absorbed or heat rejected Heat absorbed None of the listed here Heat rejected Either heat absorbed or heat rejected Heat absorbed ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The mass of flue gas per kg of fuel is the ratio of the Mass of carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas Mass of oxygen in 1 kg of fuel to the mass of oxygen in 1 kg of flue gas Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel Mass of carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas Mass of oxygen in 1 kg of fuel to the mass of oxygen in 1 kg of flue gas Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when Process is isentropic Process is isothermal Flow is uniform and steady Process is isentropic and specific heat does not change with temperature Process is isentropic Process is isothermal Flow is uniform and steady Process is isentropic and specific heat does not change with temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant) mcp (T2 - T1) mcp (T2 + T1) mcv (T2 - T1) mR (T2 - T1) mcp (T2 - T1) mcp (T2 + T1) mcv (T2 - T1) mR (T2 - T1) ANSWER DOWNLOAD EXAMIANS APP
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