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In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
A Thrust and range of aircraft
B Efficiency of the engine
C Both (A) and (B)
D None of these
Reheating in a multistage expansion gas turbine ________ compressor work.
A Has no effect on
B Decreases
C Increases
D None of these
Reheating in a gas turbine
A Increases the thermal efficiency
B Increases the compressor work
C Increases the turbine work
D Decreases the thermal efficiency
The main purpose of reheating in gas turbine is to
A Increase temperature
B Reduce turbine size
C Increase power output
D Increase speed
Reheating in gas turbine results in
A Increase of work ratio
B Decrease of thermal efficiency
C Decrease of work ratio
D Both (A) and (B) above
Reheating in multistage expansion gas turbine results in
A High thermal efficiency
B Reduction in compressor work
C Decrease of heat loss in exhaust
D Maximum work output
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
A Back pressure turbine
B Pass out turbine
C Low pressure turbine
D Impulse turbine
Reheating of steam under ideal conditions takes place at constant
A Entropy
B Enthalpy
C Pressure
D Temperature
The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which
A Delivers unit discharge under unit head
B Delivers unit discharge under unit speed
C Develops unit power under unit head
D Develops unit power under unit speed
The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is
A Same
B Higher
C Lower
D None of these

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