Engineering Thermodynamics The efficiency of Diesel cycle approaches to Otto cycle efficiency when Cut-off is increased Cut-off is constant Cut-off is decreased Cut-off is zero Cut-off is increased Cut-off is constant Cut-off is decreased Cut-off is zero 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 flue gas to the mass of oxygen in 1 kg of fuel 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 carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel 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 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 In order that a cycle be reversible, following must be satisfied Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following process can be made reversible with the help of a regenerator? Constant pvn process Constant volume process All of these Constant pressure process Constant pvn process Constant volume process All of these Constant pressure process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? Irreversible engines have maximum efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible engines have the same efficiency. Irreversible engines have maximum efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible engines have the same efficiency. ANSWER DOWNLOAD EXAMIANS APP
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