Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) v2/v1 (v1 + v2)/v1 (v1 + v2)/v2 v1/v2 v2/v1 (v1 + v2)/v1 (v1 + v2)/v2 v1/v2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One molecule of oxygen is __________ times heavier than the hydrogen atom. 16 12 32 14 16 12 32 14 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The behavior of super-heated vapour is similar to that of Perfect gas Steam Air Ordinary gas Perfect gas Steam Air Ordinary gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied When beat is being rejected, temperature of cold source and working substance should be same All of these Free expansion or friction resisted expansion/compression process should not be encountered 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 All of these Free expansion or friction resisted expansion/compression process should not be encountered When heat is being absorbed, temperature of hot source and working substance should be same ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called None of these Specific heat at constant volume Specific heat at constant pressure Kilo Joule None of these Specific heat at constant volume Specific heat at constant pressure Kilo Joule ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will Remain unchanged Increase/decrease depending on application Decrease Increase Remain unchanged Increase/decrease depending on application Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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