Discussion
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- Question
Which of the following pump is sucessfully used for lifting water to the boilers?
Options- A. Centrifugal pump
- B. Reciprocating pump
- C. Jet pump
- D. Air-lift pump
- Correct Answer
- Jet pump
- 1. Which of the following is not an impulse turbine?
Options- A. Girad turbine
- B. Turgo turbine
- C. Pelton wheel
- D. Kaplan turbine Discuss
- 2. In a centrifugal pump, the regulating valve is provided on the
Options- A. casing
- B. delivery pipe
- C. suction pipe
- D. impeller Discuss
- 3. Which of the following pump is suitable for small discharge and high heads?
Options- A. Centrifugal pump
- B. Axial flow pump
- C. Mixed flow pump
- D. Reciprocating pump Discuss
- 4. A jet of water enters and leaves a fixed curved vane tangentially. The force of the jet along normal to the vane is (where ? and ? = Inlet and outlet angles of the jet respectively)
Options- A.
- B.
- C.
- D.
Discuss
- 5. In an outward flow reaction turbine
Options- A. the water flows parallel to the axis of the wheel
- B. the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
- C. the water enters the wheel at the outer periphery and then flows towards the centre of the wheel
- D. the flow of water is partly radial and partly axial Discuss
- 6. The specific speed of a centrifugal pump may be defined as the speed of an imaginary pump, identical with the given pump, which will discharge one litre of water, while it is being raised through a head of one metre.
Options- A. True
- B. False Discuss
- 7. In a reaction turbine, the water enters the wheel under pressure and flows over the vanes.
Options- A. Correct
- B. Incorrect Discuss
- 8. A hydraulic press is a device used
Options- A. to store pressure energy which may be supplied to a machine later on
- B. to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
- C. to lift larger load by the application of a comparatively much smaller force
- D. all of the above Discuss
- 9. Slip of a reciprocating pump is negative, when
Options- A. suction pipe is short and pump is running at low speeds
- B. delivery pipe is long and pump is running at high speeds
- C. suction pipe is short and delivery pipe is long and the pump is running at low speeds
- D. suction pipe is long and delivery pipe is short and the pump is running at high speeds Discuss
- 10. Manometric head is the actual head of water against which a centrifugal pump has to work.
Options- A. Correct
- B. Incorrect Discuss
Hydraulic Machines problems
Search Results
Correct Answer: Kaplan turbine
Correct Answer: delivery pipe
Correct Answer: Reciprocating pump
Correct Answer:
Correct Answer: the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
Correct Answer: True
Correct Answer: Correct
Correct Answer: to lift larger load by the application of a comparatively much smaller force
Correct Answer: suction pipe is long and delivery pipe is short and the pump is running at high speeds
Correct Answer: Correct
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