Engineering Thermodynamics
The efficiency of a gas turbine is given by

(Isentropic increase in temperature)/(Actual increase in temperature)
(Actual temperature drop)/(Isentropic temperature drop)
(Net work output)/(Work-done by the turbine)
(Net work output)/(Heat supplied)

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
A closed system is one in which

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
First law of thermodynamics

Does not enable to determine change in entropy
Provides relationship between heat, work and internal energy
Enables to determine change in internal energy of the system
All of these

ANSWER DOWNLOAD EXAMIANS APP