Question 31 : The Thomson's turbine is __________ reaction turbine.
1. a mixed flow
2. an axial flow
3. an outward flow
4. an inward flow
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Question 32 : Slip of a reciprocating pump is negative, when
1. delivery pipe is long and pump is running at high speeds
2. suction pipe is short and delivery pipe is long and the pump is running at low speeds
3. suction pipe is long and delivery pipe is short and the pump is running at high speeds
4. suction pipe is short and pump is running at low speeds
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Question 33 : Which of the following is not an impulse turbine?
1. Pelton wheel
2. Girad turbine
3. Turgo turbine
4. Kaplan turbine
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Question 34 : A Pelton wheel is
1. inward flow impulse turbine
2. outward flow impulse turbine
3. inward flow reaction turbine
4. tangential flow impulse turbine
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Question 35 : The Furneyron turbine is __________ reaction turbine.
1. an axial flow
2. an inward flow
3. a mixed flow
4. an outward flow
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Question 36 : The cavitation in reaction turbines is avoided, to a great extent by
1. installing the turbine below the tail race level
2. using stainless steel runner of the turbine
3. providing highly polished blades to the runner
4. all of the above
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Question 37 : Which type of the pump is different from others in the same group?
1. Screw pump
2. Gear pump
3. Plunger pump
4. Cam and piston pump
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Question 38 : The depth of the bucket for a Pelton wheel is generally __________ the diameter of jet.
1. 2 times
2. 8 times
3. equal to
4. double
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Question 39 : An impulse turbine is used for
1. medium head of water
2. high head of water
3. high discharge
4. low head of water
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Question 40 : The specific speed of a hydraulic turbine depends upon
1. speed, power developed and head of water
2. speed and power developed
3. discharge and power developed
4. speed and head of water
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