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. |
A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350 C and the Condenser at 50 kPa. Assuming ideal operation and processes, what is the thermal efficiency of this cycle? |
| A. | 7.7 |
| B. | 17.7 |
| C. | 27.7 |
| D. | 37.7 |
| Answer» D. 37.7 | |
| 2. |
In Rankine cycle, the work output from the turbine is given by ___________ |
| A. | change of internal energy between inlet and outlet |
| B. | change of enthalpy between inlet and outlet |
| C. | change of entropy between inlet and outlet |
| D. | change of temperature between inlet and outlet |
| Answer» C. change of entropy between inlet and outlet | |
| 3. |
Rankine cycle operating on low pressure limit of p1 and high pressure limit of p2 ___________ |
| A. | has higher thermal efficiency than the Carnot cycle operating between same pressure limits |
| B. | has lower thermal efficiency than Carnot cycle operating between same pressure limits |
| C. | has same thermal efficiency as Carnot cycle operating between same pressure limits |
| D. | may be more or less depending upon the magnitudes of p1 and p2 |
| Answer» B. has lower thermal efficiency than Carnot cycle operating between same pressure limits | |