MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
The area of parallelogram in the T-S diagram representing the cycle output is equal to? |
| A. | area of rectangle representing the output of the Carnot cycle |
| B. | area of the triangle representing the output of the Carnot cycle |
| C. | area of the square representing the output of the Carnot cycle |
| D. | none of the mentioned |
| Answer» B. area of the triangle representing the output of the Carnot cycle | |
| 2. |
In the T-S diagram, the process of heating from condenser to boiler saturation temperature when the number of turbine extraction stages are finite is? |
| A. | Reversible |
| B. | Irreversible |
| C. | Adiabatic |
| D. | None of the mentioned |
| Answer» C. Adiabatic | |
| 3. |
“Regenerative feedwater heating by turbine extraction” is often termed as? |
| A. | Electrophoresis of Rankine cycle |
| B. | Sterlinisation of Rankine cycle |
| C. | Carnotization of Rankine cycle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 4. |
In the T-S diagram of a Rankine cycle, the abscissa represents? |
| A. | total entropy of turbine steam |
| B. | partial entropy of turbine steam |
| C. | partial enthalpy of turbine steam |
| D. | none of the mentioned |
| Answer» B. partial entropy of turbine steam | |
| 5. |
The output from boiler goes to? |
| A. | Turbine |
| B. | Condenser |
| C. | Pump |
| D. | Economiser |
| Answer» B. Condenser | |
| 6. |
Which of the processes immediately follows the expansion of throttle steam? |
| A. | heat given up by the steam is added to feedwater |
| B. | heating from condenser to boiler saturation temperature |
| C. | carnotization of rankine cycle |
| D. | none of the mentioned |
| Answer» B. heating from condenser to boiler saturation temperature | |
| 7. |
For the process of heating from condenser to boiler saturation temperature to be reversible, the number of extraction stages involved in the entire cycle should be? |
| A. | Zero |
| B. | One |
| C. | Infinite |
| D. | Finite |
| Answer» D. Finite | |
| 8. |
A regenerative feedwater heating cycle with an infinite number of feedwater heaters has efficiency equal to? |
| A. | Brayton cycle |
| B. | Carnot cycle |
| C. | Diesel cycle |
| D. | Otto cycle |
| Answer» C. Diesel cycle | |
| 9. |
“Regenerative feedwater heating by turbine extraction” is often termed as?$ |
| A. | Electrophoresis of Rankine cycle |
| B. | Sterlinisation of Rankine cycle |
| C. | Carnotization of Rankine cycle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
The heat given up by the expansion of throttle steam is utilised in? |
| A. | maintaining the heat flow in the system |
| B. | reducing temperature variation in the system |
| C. | heating the feedwater |
| D. | cooling feedwater |
| Answer» D. cooling feedwater | |
| 11. |
After the expansion of throttle steam, why is some steam extracted? |
| A. | so that the total amount of steam in the entire system remains same |
| B. | so that the variation in temperature is constant |
| C. | so that pressure variation is constant |
| D. | so that the total entropy is reduced |
| Answer» E. | |