Engineering Thermodynamics
The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will

Increase
Remain unchanged
Increase/decrease depending on application
Decrease

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 room will be cooled to the temperature inside the refrigerator
The room will be gradually warmed up
The temperature of the air in room will remain unaffected
The room will be cooled very slightly

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

ANSWER DOWNLOAD EXAMIANS APP