MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the effect of increase in steam rate on boiler size? |
| A. | boiler size increases |
| B. | boiler size increases |
| C. | boiler size is independent of steam rate |
| D. | none of the mentioned |
| Answer» B. boiler size increases | |
| 2. |
If q represents the work output, r represents the work input, Q represents the heat input, the efficiency n in terms of q & r is given by? |
| A. | n = (q-r)/Q |
| B. | n = ( q+r)/Q |
| C. | n = (qr)/Q |
| D. | n = (qr x qr)/Q |
| Answer» B. n = ( q+r)/Q | |
| 3. |
If h1 & h10 are the enthalpies at the inlet & at the exhaust, s1 & s10 are the enthalpies at the inlet & exhaust, the mean temperature of heat addition, Tml with regeneration is? |
| A. | (h1 + h10)/(s1 + s10) |
| B. | (h1 + h10)/(s1 – s10) |
| C. | (h1 – h10)/(s1 + s10) |
| D. | (h1 – h10)/(s1 – s10) |
| Answer» E. | |
| 4. |
What effect does the heating of feedwater by steam ‘bled’ from the turbine has on the Rankine Cycle? |
| A. | it rankinises the Rankine Cycle |
| B. | it carnotinises the Rankine Cycle |
| C. | it reheats the Rankine Cycle |
| D. | none of the mentioned |
| Answer» C. it reheats the Rankine Cycle | |
| 5. |
In an ideal regenerative cycle, the work output is at? |
| A. | Boiler |
| B. | Turbine |
| C. | Condenser |
| D. | Pump |
| Answer» C. Condenser | |
| 6. |
IF_Q_REPRESENTS_THE_WORK_OUTPUT,_R_REPRESENTS_THE_WORK_INPUT,_Q_REPRESENTS_THE_HEAT_INPUT,_THE_EFFICIENCY_N_IN_TERMS_OF_Q_&_R_IS_GIVEN_BY??$ |
| A. | n = (q-r)/Q |
| B. | n = ( q+r)/Q |
| C. | n = (qr)/Q |
| D. | n = (qr x qr)/Q |
| Answer» B. n = ( q+r)/Q | |
| 7. |
What_is_the_effect_of_increase_in_steam_rate_on_boiler_size?$ |
| A. | boiler size increases |
| B. | boiler size increases |
| C. | boiler size is independent of steam rate |
| D. | none of the mentioned |
| Answer» B. boiler size increases | |
| 8. |
If Q represents the heat input, P represents the heat output; the efficiency n in terms of Q & P is given by? |
| A. | n = QP |
| B. | n = (Q-P)/Q |
| C. | n = (P-Q)/Q |
| D. | n = Q/(Q-P) |
| Answer» C. n = (P-Q)/Q | |
| 9. |
If h & h1 are the enthalpies at the inlet & at the exhaust, s & s1 are the enthalpies at the inlet & exhaust, the mean temperature of heat addition, T with regeneration is ? |
| A. | (h + h<sub>1</sub>)/(s + s<sub>1</sub>) |
| B. | (h + h<sub>1</sub>)/(s – s<sub>1</sub>) |
| C. | (h – h<sub>1</sub>)/(s + s<sub>1</sub>) |
| D. | (h – h<sub>1</sub>)/(s – s<sub>1</sub>) |
| Answer» E. | |
| 10. |
What is the effect of increase in regeneration on steam rate? |
| A. | steam rate increases |
| B. | steam rate decreases |
| C. | steam rate isindependent of regeneration |
| D. | none of the mentioned |
| Answer» B. steam rate decreases | |
| 11. |
What effect does the heating of feedwater by steam ‘bled’ from the turbine has on the Rankine Cycle?$ |
| A. | it rankinises the Rankine Cycle |
| B. | it carnotinises the Rankine Cycle |
| C. | it reheats the Rankine Cycle |
| D. | none of the mentioned |
| Answer» C. it reheats the Rankine Cycle | |
| 12. |
In an ideal regenerative cycle, the work input is at? |
| A. | Boiler |
| B. | Turbine |
| C. | Condenser |
| D. | Pump |
| Answer» E. | |
| 13. |
In an ideal regenerative cycle, heat output is at? |
| A. | Boiler |
| B. | Turbine |
| C. | Condenser |
| D. | Pump |
| Answer» D. Pump | |
| 14. |
In an ideal regenerative cycle, heat input is at? |
| A. | Boiler |
| B. | Turbine |
| C. | Condenser |
| D. | Pump |
| Answer» B. Turbine | |