Engineering Thermodynamics Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant Temperature Internal energy Volume Pressure Temperature Internal energy Volume Pressure ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The door of a running refrigerator inside a room was left open. Which of the following statements is correct? The temperature of the air in room will remain unaffected The room will be cooled very slightly The room will be gradually warmed up The room will be cooled to the temperature inside the refrigerator The temperature of the air in room will remain unaffected The room will be cooled very slightly The room will be gradually warmed up The room will be cooled to the temperature inside the refrigerator ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Reversed joule cycle is called Bell Coleman cycle Brayton cycle Carnot cycle Rankine cycle Bell Coleman cycle Brayton cycle Carnot cycle Rankine cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits? O₂, N₂, steam, CO₂ SO₂, NH₃, CO₂, moisture O₂, N₂, H₂, air O₂, N₂, water vapour O₂, N₂, steam, CO₂ SO₂, NH₃, CO₂, moisture O₂, N₂, H₂, air O₂, N₂, water vapour 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 + rγ - 1 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) 1 - rγ - 1 1 + rγ - 1 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for Diesel engines is 15 to 20 3 to 6 20 to 30 5 to 8 15 to 20 3 to 6 20 to 30 5 to 8 ANSWER DOWNLOAD EXAMIANS APP
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