Engineering Thermodynamics
A closed system is one in which

Neither mass nor energy crosses the boundaries of the system
Mass crosses the boundary but not the energy
Both energy and mass cross the boundaries of the system
Mass does not cross boundaries of the system, though energy may do so

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 room will be cooled very slightly
The temperature of the air in room will remain unaffected

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called

Carbonisation
Cracking
Fractional distillation
Full distillation

ANSWER DOWNLOAD EXAMIANS APP