| 1. | Which type of the pump is different from others in the same group ? | |
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Screw pump
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Gear pump
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Cam and piston pump
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Plunger pump
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Report Question| 2. | A hydraulic coupling belongs to the category of ? | |
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power absorbing machines
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power developing machines
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energy transfer machines
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energy generating machines
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| 3. | Which of the following pump is successfully used for lifting water to the turbines ? | |
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Centrifugal pump
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Reciprocating pump
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Jet pump
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Air lift pump
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| 4. | Which of the following pump is preferred for flood control and irrigation applications ? | |
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Centrifugal pump
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Axial flow pump
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Mixed flow pump
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Reciprocating pump
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| 5. | Slip of a reciprocating pump is negative, when ? | |
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suction pipe is short and pump is running at low speeds
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delivery pipe is long and pump is running at high speeds
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suction pipe is short and delivery pipe is long and the pump is running at low speeds
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suction pipe is long and delivery pipe is short and the pump is running at high speeds
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| 6. | The specific speed of a hydraulic turbine depends upon ? | |
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speed and power developed
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discharge and power developed
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speed and head of water
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speed, power developed and head of water
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| 7. | In a Francis turbine runner, the number of blades are generally between ? | |
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2 to 4
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4 to 8
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8 to 16
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16 to 24
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| 8. | The function of guide vanes in a reaction turbine is to ? | |
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allow the water to enter the runner without shock
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allow the water to flow over them, without forming eddies
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allow the required quantity of water to enter the turbine
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all of the above
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| 9. | Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m. ? | |
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Pelton wheel
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Francis turbine
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Kaplan turbine
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none of these
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| 10. | A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the ? | |
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kinetic head
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velocity head
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manometric head
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static head
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