MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Hydraulic Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The difference between gross head and friction losses is ____________ |
| A. | Net head |
| B. | Gross head |
| C. | Manometric head |
| D. | Net positive suction head |
| Answer» B. Gross head | |
| 2. |
Head lost due to friction is given by k*f*L*v*v/D*2g where f- friction coefficient, L- length of pen stock, D- diameter of penstock and” k” is constant and its value is ____________ |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 3. |
The head available at inlet of turbine is ____________ |
| A. | Net positive suction head |
| B. | Gross head |
| C. | Net head |
| D. | Manometric head |
| Answer» D. Manometric head | |
| 4. |
_____________ is difference between head race and tail race. |
| A. | Gross head |
| B. | Net head |
| C. | Net positive suction head |
| D. | Manometric head |
| Answer» B. Net head | |
| 5. |
Head under which Francis turbine is operated? |
| A. | 10-70 meters |
| B. | 70-100 meters |
| C. | 100-200 meters |
| D. | 40-600 meters |
| Answer» E. | |
| 6. |
HEAD_LOST_DUE_TO_FRICTION_IS_GIVEN_BY_K*F*L*V*V/D*2G_WHERE_F-_FRICTION_COEFFICIENT,_L-_LENGTH_OF_PEN_STOCK,_D-_DIAMETER_OF_PENSTOCK_AND‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖŒÄ_K‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖŒÄ_IS_CONSTANT_AND_ITS_VALUE_IS_____________?$# |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 7. |
The difference between gross head and friction losses is ____________$ |
| A. | Net head |
| B. | Gross head |
| C. | Manometric head |
| D. | Net positive suction head |
| Answer» B. Gross head | |
| 8. |
The head available at inlet of turbin? |
| A. | Net positive suction head |
| B. | Gross head |
| C. | Net head |
| D. | Manometric head |
| Answer» D. Manometric head | |
| 9. |
_____________ is difference between head race and tail race |
| A. | Gross head |
| B. | Net head |
| C. | Net positive suction head |
| D. | Manometric head |
| Answer» B. Net head | |
| 10. |
Under what head is Pelton turbine operated? |
| A. | 20-50 meters |
| B. | 15-2000 meters |
| C. | 60-200 meters |
| D. | 50-500 meters |
| Answer» C. 60-200 meters | |
| 11. |
The turbine is preferred for 0 to 25 m head of water? |
| A. | Pelton wheel |
| B. | Kaplan turbine |
| C. | Tube turbine |
| D. | Francis turbine |
| Answer» C. Tube turbine | |
| 12. |
Head under which Francis turbine is operated |
| A. | 10-70 meters |
| B. | 70-100 meters |
| C. | 100-200 meters |
| D. | 40 -600 meters |
| Answer» E. | |
| 13. |
Head under which Kaplan turbine is operated______ |
| A. | 10-70 meters |
| B. | 70 -100 meters |
| C. | 100-200 meters |
| D. | Above 200 meters |
| Answer» B. 70 -100 meters | |
| 14. |
Total head of turbines is_______ |
| A. | Pressure head + Static head |
| B. | Kinetic head + Static head |
| C. | Static head + Pressure head |
| D. | Pressure head + Kinetic head + Static head |
| Answer» E. | |
| 15. |
Among the following which turbine requires more head? |
| A. | Pelton Turbine |
| B. | Kaplan Turbine |
| C. | Francis turbine |
| D. | Tube Turbine |
| Answer» B. Kaplan Turbine | |