MCQOPTIONS
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MCQOPTIONS
This section includes 108 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
In gas turbine, intercooler is placed |
| A. | before low pressure compressor |
| B. | in between low pressure compressor and high pressure compressor |
| C. | in between high pressure compressor and turbine |
| D. | None of the mentioned |
| Answer» C. in between high pressure compressor and turbine | |
| 102. |
The heating value of gaseous fuels is about |
| A. | 500 kJ/litre |
| B. | 30 kJ/litre |
| C. | 100 kJ/litre |
| D. | 10 kJ/litre |
| Answer» C. 100 kJ/litre | |
| 103. |
What is the importance of the freezing point of the working fluid in the vapour power cycle? |
| A. | freezing point of working fluid should be below the room temperature |
| B. | freezing point of working fluid should be above the room temperature |
| C. | freezing point of working fluid should be equal to the room temperature |
| D. | does not have any importance |
| Answer» B. freezing point of working fluid should be above the room temperature | |
| 104. |
The 'work ratio' increases with |
| A. | increase in turbine inlet pressure |
| B. | decrease in compressor inlet temperature |
| C. | decrease in pressure ratio of the cycle |
| D. | all of the mentioned |
| Answer» E. | |
| 105. |
The following method(s) can be used to improve the thermal efficiency of open cycle gas turbine plant |
| A. | inter-cooling |
| B. | Reheating |
| C. | Regeneration |
| D. | All of the mentioned |
| Answer» E. | |
| 106. |
The maximum efficiency of Rankine cycle (ηr) is the function of |
| A. | the mean temperature of heat addition (Tm) only |
| B. | the mean temperature of heat addition (Tm) and temperature of steam at the exit of the turbine |
| C. | the mean temperature of heat addition (Tm) and temperature of steam at the entry of the turbine |
| D. | the mean temperature of heat addition (Tm) and temperature of steam at exit of the condenser |
| Answer» B. the mean temperature of heat addition (Tm) and temperature of steam at the exit of the turbine | |
| 107. |
The gas turbine power plant mainly uses which among the following fuels? |
| A. | Coal and Peat |
| B. | Kerosene oil and diesel oil and residual oil |
| C. | Gas oil |
| D. | Natural gas and liquid petroleum fuel |
| Answer» E. | |
| 108. |
What efficiencies of thermionic power generator have been realised? |
| A. | 50-60% |
| B. | 40-50% |
| C. | 10-20% |
| D. | 30-40% |
| Answer» D. 30-40% | |