MCQOPTIONS
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MCQOPTIONS
This section includes 11 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 power supplied at inlet of turbine in S.I units is known as_____________a) Shaft powerb) Runner powerc) Water powerd) Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kwb) (g*Q*H* |
| A. | Shaft powerb) Runner powerc) Water powerd) Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kw |
| B. | Runner powerc) Water powerd) Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kwb) (g*Q*H*a) Kw |
| C. | Water powerd) Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kwb) (g*Q*H*a) Kwc) (g*Q) Kw |
| D. | Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kwb) (g*Q*H*a) Kwc) (g*Q) Kwd) (g*H) KwView Answer |
| Answer» D. Total power 10.The expression for water power in Pelton wheel is ________________a) (P*g*Q*H) Kwb) (g*Q*H*a) Kwc) (g*Q) Kwd) (g*H) KwView Answer | |
| 2. |
THE_POWER_SUPPLIED_AT_INLET_OF_TURBINE_IN_S.I_UNITS_IS_KNOWN_AS_____________?$ |
| A. | Shaft power |
| B. | Runner power |
| C. | Water power |
| D. | Total power |
| Answer» D. Total power | |
| 3. |
The expression for water power in Pelton wheel is ________________$ |
| A. | (P*g*Q*H) Kw |
| B. | (g*Q*H*a) Kw |
| C. | (g*Q) Kw |
| D. | (g*H) Kw |
| Answer» B. (g*Q*H*a) Kw | |
| 4. |
Calculate work done by jet per second on the runner where, discharge=0.7cubic meters/s, inlet and outlet whirl velocities be 23.77 and 2.94? |
| A. | 200Kw |
| B. | 150Kw |
| C. | 187Kw |
| D. | 250Kw |
| Answer» D. 250Kw | |
| 5. |
The force exerted by a jet of water in the direction of jet of jet on moving curved plates is ___________ |
| A. | pa(v-u)*(v-u) |
| B. | pa(v-u) |
| C. | pav*(v-u)(1+cos k) |
| D. | pa(v-u)*(v-u)(1+sin k) |
| Answer» D. pa(v-u)*(v-u)(1+sin k) | |
| 6. |
The force exerted by a jet of water in the direction of jet of jet on a stationary curved plates Fx is ____________ |
| A. | pav*v |
| B. | pav |
| C. | pav*v(1+cos k) |
| D. | pav*v(1+sin k) |
| Answer» D. pav*v(1+sin k) | |
| 7. |
Kinetic energy of jet at inlet of turbine is given as __________________ |
| A. | 0.5(paV1)*V1 |
| B. | 0.5(paV1)*V1*V1 |
| C. | 0.5(aV1)*V1*V1 |
| D. | 0.5(pV1)*V1*V1 |
| Answer» C. 0.5(aV1)*V1*V1 | |
| 8. |
In Pelton turbine runner power is more when compared with power available at exit of nozzle. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
In Pelton turbines the expression for power delivered at inlet to runner is given by __________ |
| A. | W*[Vw1+Vw2]u/g |
| B. | W*[Vw1-Vw2]u/g |
| C. | W*[Vw1+Vw2]u/g, W*[Vw1-Vw2]u/g |
| D. | [Vw1+Vw2]u/g |
| Answer» D. [Vw1+Vw2]u/g | |
| 10. |
In Pelton turbine the energy available at inlet of runner that is at outlet of nozzle is known as |
| A. | Shaft power |
| B. | Runner power |
| C. | Output power |
| D. | Water power |
| Answer» C. Output power | |
| 11. |
The work done per unit weight of water jet striking runner blades of Pelton turbine is given by expression ______________ |
| A. | [Vw1+Vw2] u/g |
| B. | Vw1*u/g |
| C. | [Vw1+Vw2]/g |
| D. | [Vw1+Vw2]u |
| Answer» B. Vw1*u/g | |