MCQOPTIONS
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MCQOPTIONS
This section includes 3 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 isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be ___________ |
| A. | 0.67 |
| B. | 0.4 |
| C. | 0.5 |
| D. | 0.56 |
| Answer» B. 0.4 | |
| 2. |
A nozzle is said to be a convergent nozzle when? |
| A. | the cross-section of the nozzle increases continuously from entrance to exit |
| B. | the cross-section of the nozzle decreases continuously from entrance to exit |
| C. | the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit |
| D. | none of the mentioned |
| Answer» C. the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit | |
| 3. |
The ratio of the work done on the blades to the energy supplied to the blades is called ____________ |
| A. | gross or stage efficiency |
| B. | blading efficiency |
| C. | nozzle efficiency |
| D. | mechanical efficiency |
| Answer» C. nozzle efficiency | |