Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) 1 + rγ - 1 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The gas turbine cycle with regenerator improves Work ratio Thermal efficiency Avoid pollution None of these Work ratio Thermal efficiency Avoid pollution None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The temperature at which the volume of a gas becomes zero is called Absolute temperature Absolute zero temperature Absolute scale of temperature None of these Absolute temperature Absolute zero temperature Absolute scale of temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about 100 × 10⁵ joules 10 × 10⁵ kilo joules 10 × 10⁵ joules 1 × 10⁵ joules 100 × 10⁵ joules 10 × 10⁵ kilo joules 10 × 10⁵ joules 1 × 10⁵ joules ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is Briquetted coal Bituminous coal Wood charcoal Coke Briquetted coal Bituminous coal Wood charcoal Coke ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Water contained in a beaker can be made to boil by passing steam through it At atmospheric pressure Not possible Any pressure At a pressure greater than atmospheric pressure At atmospheric pressure Not possible Any pressure At a pressure greater than atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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