The main purpose of reheating in gas turbine is to__________________?

Related Mcqs:

1. 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 E. both B. and C. above...

2. 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 E. none of the above...

3. The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?

   A. low B. high C. same D. low/high depending on make and type E. unpredictable...

4. The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio_____________________?

   A. increases B. decreases C. first increases and then decreases D. first decreases and then increases E. remains same...

5. There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would__________________?

   A. remain same B. decrease C. increase D. unpredictable E. none of the above...

6. As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio_____________________?

   A. increases B. decreases C. remains same D. first increases and then decreases E. first decreases and then increases...

7. If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches _________________?

   A. isothermal B. isentropic C. adiabatic D. isochoric E. isobaric...

8. The weight per horse power ratio for gas. turbine as compared to I.C. engine and steam turbine is________________?

   A. same B. higher C. lower D. uncomparable E. unpredictable...

9. Maximum temprature in a gas turbine is of the order of COMPRESSORS, GAS TURBINES AND JET ENGINES______________________?

   A. 2500°C B. 2000°C C. 1500°C D. 1000°C E. 700°C...

10. The work ratio of simple gas turbine cycle depends on_________________?

    A. pressure ratio B. maximum cycle temperature C. minimum cycle temperature D. all of the above E. none of die above...