McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
Chapters
| 401. |
Which among the following is not a shape for a curve? |
| A. | Logarithmic curve |
| B. | Helix curve |
| C. | Straight curve |
| D. | Speed curve |
| Answer» D. Speed curve | |
| 402. |
How do we plot points in a curve? |
| A. | Analytical approach |
| B. | General approach |
| C. | Tail approach |
| D. | Head approach |
| Answer» A. Analytical approach | |
| 403. |
Plotting sine curve will take place along the |
| A. | y axis |
| B. | x axis |
| C. | z axis |
| D. | x and z |
| Answer» B. x axis | |
| 404. |
In analytical approach, dp= |
| A. | vdt |
| B. | v |
| C. | dt |
| D. | dx |
| Answer» A. vdt | |
| 405. |
The equation is general approach is called as central difference. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» A. True | |
| 406. |
The approximate value of the constant speed curve is given by ratio of |
| A. | dy/dp |
| B. | dx/dp |
| C. | dt/dx |
| D. | dt/dy |
| Answer» A. dy/dp | |
| 407. |
In constant speed curves, the velocity is kept a constant varying its head. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» B. False | |
| 408. |
The performance of a characteristic curve is kept at a high value. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» A. True | |
| 409. |
In nozzle governing, the flow rate of steam is regulated by |
| A. | Nozzles |
| B. | Pumping |
| C. | Drafting |
| D. | Intercooling |
| Answer» A. Nozzles | |
| 410. |
The flow rate of steam is controlled by regulating the |
| A. | Steam |
| B. | Pressure |
| C. | Temperature |
| D. | Speed |
| Answer» B. Pressure | |
| 411. |
What is primary objective of steam turbine governing? |
| A. | Maintain constant speed |
| B. | Maintain constant pressure |
| C. | Maintain constant temperature |
| D. | Maintain constant expansion |
| Answer» A. Maintain constant speed | |
| 412. |
What is the purpose of a steam turbine governing? |
| A. | Controls speed |
| B. | Controls flow rate |
| C. | Controls volume |
| D. | Controls discharge |
| Answer» B. Controls flow rate | |
| 413. |
The advantage of nozzle governing is that no regulating pressure is applied. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» A. True | |
| 414. |
During the steam turbine governing, what remains a constant? |
| A. | Speed of rotation |
| B. | Flow rate |
| C. | Pump head |
| D. | Volume of fluid |
| Answer» A. Speed of rotation | |
| 415. |
When do we apply by pass governing? |
| A. | When turbine is overloaded |
| B. | When Unit speed decreases |
| C. | When Unit power increases |
| D. | When Unit pressure decreases |
| Answer» A. When turbine is overloaded | |
| 416. |
When bypass valve is opened to |
| A. | Increase Pressure |
| B. | Increase Unit speed |
| C. | Increase Unit power |
| D. | Increase the amount of fresh steam |
| Answer» D. Increase the amount of fresh steam | |
| 417. |
What is the unit of steam rate? |
| A. | kg |
| B. | kg/m |
| C. | kg/kWh |
| D. | N/m |
| Answer» C. kg/kWh | |
| 418. |
With the increase in load, Energy in the turbine |
| A. | Decreases |
| B. | Increases |
| C. | Remains same |
| D. | Independent |
| Answer» A. Decreases | |
| 419. |
Combination governing involves usage of two or more governing. |
| A. | True |
| B. | False |
| C. | none |
| D. | none |
| Answer» A. True | |
| 420. |
When the mechanical speed of the shaft increases beyond 110 percent, we use |
| A. | Throttle governing |
| B. | Steam governing |
| C. | Nozzle governing |
| D. | Emergency governing |
| Answer» D. Emergency governing | |
| 421. |
When the balancing of the turbine is disturbed, we use |
| A. | Throttle governing |
| B. | Steam governing |
| C. | Nozzle governing |
| D. | Emergency governing |
| Answer» D. Emergency governing | |
| 422. |
The flow rate of steam is controlled by regulating the_ |
| A. | Steam |
| B. | Pressure |
| C. | Temperature |
| D. | Speed |
| Answer» B. Pressure | |
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