MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Steam Turbine Question and Answers Heat and Steam Rate 2 knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When lubrication is failed _____________ is used. |
| A. | Centrifugal governor |
| B. | Emergency governor |
| C. | Potter governor |
| D. | None of the mentioned |
| Answer» C. Potter governor | |
| 2. |
When balancing of the turbine is disturbed ___________ is used. |
| A. | Potter governor |
| B. | Centrifugal governor |
| C. | Emergency governor |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
When is emergency governing used? |
| A. | Speed of shaft increased above 110% |
| B. | When turbine is shut down due to overload |
| C. | When Low steam is entering |
| D. | None of the mentioned |
| Answer» B. When turbine is shut down due to overload | |
| 4. |
During overload of turbines __________ are used. |
| A. | throttle governing |
| B. | nozzle valves |
| C. | bypass governing |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 5. |
In nozzle governing the flow rate is controlled by ____________ |
| A. | opening and closing the valves at nozzle |
| B. | adding more number of nozzles |
| C. | increasing nozzle efficiency |
| D. | none of the mentioned |
| Answer» B. adding more number of nozzles | |
| 6. |
Why is steam turbine governing used? |
| A. | To increase the steam speed |
| B. | To maintain steam speed constant |
| C. | To decrease the steam speed |
| D. | None of the mentioned |
| Answer» C. To decrease the steam speed | |
| 7. |
Steam turbine governing can be defined as __________ |
| A. | increasing the steam speed |
| B. | adjusting the governors for particular speeds |
| C. | controlling the flow rate of steam |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
For calculating heat rate in steam turbines enthalpy is calculated. |
| A. | False |
| B. | True |
| Answer» C. | |
| 9. |
What is heat rate in turbine? |
| A. | Heat required for unit of power generated in specific conditions and specific fuel burning |
| B. | Amount of heat required to expand turbine blades |
| C. | Amount of heat required to increase pressure of steam |
| D. | None of the mentioned |
| Answer» B. Amount of heat required to expand turbine blades | |
| 10. |
Heat rate defines how much energy is to be expanded for obtaining a unit of useful work. |
| A. | True |
| B. | False |
| Answer» B. False | |