MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
In centrifugal compressor, the diffuser converts _________ |
| A. | Kinetic energy into pressure energy |
| B. | Pressure energy into Kinetic energy |
| C. | Kinetic energy into Mechanical energy |
| D. | Mechanical energy into Kinetic energy |
| Answer» B. Pressure energy into Kinetic energy | |
| 2. |
In the ____________ heat transfer takes place between the exhaust gases and cool air. |
| A. | Intercooler |
| B. | Re-heater |
| C. | Regenerator |
| D. | Compressor |
| Answer» D. Compressor | |
| 3. |
In centrifugal compressor, power input varies as _________ |
| A. | directly as the speed ratio |
| B. | the square of speed ratio |
| C. | the cube of the speed ratio |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 4. |
In the centrifugal compressor, total pressure varies _____________ |
| A. | directly as the speed ratio |
| B. | square of speed ratio |
| C. | cube of the speed ratio |
| D. | all of the mentioned |
| Answer» C. cube of the speed ratio | |
| 5. |
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. | |
| 6. |
In gas turbine, what is the function of Re-heater? |
| A. | Heat inlet air |
| B. | Heat exhaust gases |
| C. | Heat air coming out of compressor |
| D. | Heat gases coming out of high pressure turbine |
| Answer» E. | |
| 7. |
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 | |