MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
Spiral casing of reaction turbine will regulate the flow. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
____________governs the flow of water entering the runner blades. |
| A. | Casing |
| B. | Guide vanes |
| C. | Draft tube |
| D. | Runner |
| Answer» C. Draft tube | |
| 3. |
____________and __________of radial flow reaction turbine are always full of water. |
| A. | Casing and runner |
| B. | Casing and penstocks |
| C. | Runner and penstocks |
| D. | Runner and draft tube |
| Answer» B. Casing and penstocks | |
| 4. |
___________is a pipe of gradually increasing area used for discharging water from exit of the turbine to the tail race. |
| A. | Casing |
| B. | Guide mechanism |
| C. | Draft tube |
| D. | Runner |
| Answer» D. Runner | |
| 5. |
The pressure at the exit of runner of reaction turbine is generally____________than atmospheric pressure |
| A. | Greater |
| B. | Lesser |
| C. | Constant |
| D. | Equal |
| Answer» C. Constant | |
| 6. |
Runner blades are made up of _____________ |
| A. | Cast steel |
| B. | Cast iron |
| C. | Wrought iron |
| D. | Steel |
| Answer» B. Cast iron | |
| 7. |
THE_PRESSURE_AT_THE_EXIT_OF_RUNNER_OF_REACTION_TURBINE_IS_GENERALLY____________THAN_ATMOSPHERIC_PRESSURE?$ |
| A. | Greater |
| B. | Lesser |
| C. | Constant |
| D. | Equal |
| Answer» C. Constant | |
| 8. |
____________and __________of radial flow reaction turbine are always full of water.$ |
| A. | Casing and runner |
| B. | Casing and penstocks |
| C. | Runner and penstocks |
| D. | Runner and draft tube |
| Answer» B. Casing and penstocks | |
| 9. |
___________is_a_pipe_of_gradually_increasing_area_used_for_discharging_water_from_exit_of_the_turbine_to_the_tail_race$ |
| A. | Casing |
| B. | Guide mechanism |
| C. | Draft tube |
| D. | Runner |
| Answer» D. Runner | |
| 10. |
Spiral casing of reaction turbine will regulate the flow? |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
____________governs_the_flow_of_water_entering_the_runner_blades. |
| A. | Casing |
| B. | Guide vanes |
| C. | Draft tube |
| D. | Runner |
| Answer» C. Draft tube | |
| 12. |
Runner blades are made up of ____________? |
| A. | Cast steel |
| B. | Cast iron |
| C. | Wrought iron |
| D. | Steel |
| Answer» B. Cast iron | |
| 13. |
_____________ allow the water to strike the vanes fixed on runner without shock at inlet |
| A. | Casing |
| B. | Guide vanes |
| C. | Runner |
| D. | Draft tube |
| Answer» C. Runner | |
| 14. |
The casing of radial flow reaction turbine is made of spiral shape, so that water may enter the runner__________ |
| A. | Variable acceleration |
| B. | Constant acceleration |
| C. | Variable velocity |
| D. | Constant velocity |
| Answer» E. | |
| 15. |
____________ consists of stationary circular wheel all around the runner of turbine |
| A. | Casing |
| B. | Guide mechanism |
| C. | Runner |
| D. | Drafting |
| Answer» C. Runner | |
| 16. |
Radial flow reaction turbines contain spiral casing which area ____________ |
| A. | Remains constant |
| B. | Gradually decreases |
| C. | Gradually increases |
| D. | Suddenly decreases |
| Answer» C. Gradually increases | |
| 17. |
Discharge through radial flow reaction turbine is ______________ |
| A. | P1*b1*Vf1 |
| B. | P2*b2*Vf2 |
| C. | P1*b2*Vf2 |
| D. | Both P1*b1*Vf1 & P2*b2*Vf2 |
| Answer» E. | |
| 18. |
Main parts of radial flow reaction turbines are ______________ |
| A. | Casing |
| B. | Guide mechanism |
| C. | Draft tube |
| D. | All of the mentioned |
| Answer» E. | |
| 19. |
Radial flow reaction turbines are those turbines in which water flows ____________ |
| A. | Radial direction |
| B. | Axial direction |
| C. | Tangential direction |
| D. | All of the mentioned |
| Answer» B. Axial direction | |