--- Content provided by FirstRanker.com --- HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
/s and depth of flow is
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
b) Define specific energy and draw the specific energy diagram. Explain how it is useful for
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
expression for the viscous force. (15M)
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
symmetrical plate at the center. Find the force exerted by the jet of water in the direction of
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
sketches. (15M)
8. Write short notes on the following:
a) Firm Power
c) Diversity factor
d) Load duration curve. (15M)
1of 1
SET - 1
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|''|''|||''|'''|||'|
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
/s and depth of flow is
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
b) Define specific energy and draw the specific energy diagram. Explain how it is useful for
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
expression for the viscous force. (15M)
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
symmetrical plate at the center. Find the force exerted by the jet of water in the direction of
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
sketches. (15M)
8. Write short notes on the following:
a) Firm Power
c) Diversity factor
d) Load duration curve. (15M)
1of 1
SET - 1
FirstRanker.com
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
3
/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
the features of critical flow? Deduce the condition for minimum specific energy and the related
expressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
b) Explain the terms: distorted models and undistorted models. What is the use of distorted
models? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
b) A blade turns the jet of diameter 2.5cm at a velocity of 25 m/s by 60?. Determine the force
exerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
(7M+8M)
6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
centrifugal pump? (15M)
8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
1 of 1
R10
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FirstRanker.com
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
3
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
hydraulic jump.
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain and
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixed
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)
6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
8. Write short notes on the following:
a) Firm Power
b) Secondary power
d) Load duration curve. (15M)
1of 1
R10
FirstRanker.com
|''|''|||''|'''|||'|
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
slopes of 1 vertical to 2 horizontal, to carry 12 m
/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
2. Define specific energy? Sketch the specific energy curve and explain regimes of flow? Indicate
expressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
model.
models? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
direction of the jet with a velocity less than that of the jet.
exerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
b) List the various efficiencies used to express the performance of hydraulic turbines.
6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
7. What do you mean by manometric efficiency, mechanical efficiency and overall efficiency of
8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
b) Explain how hydropower plants are classified. (8M+7M)
1 of 1
R10
SET - 2
FirstRanker.com
|''|''|||''|'''|||'|
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
depth, critical velocity and alternate depths as applied to non-uniform flow.
b) A trapezoidal channel has a bed width of 5 m, side slopes of 1 upon 1.5 and Manning?s
n = 0.016. Compute the critical slope and the corresponding discharge for a critical depth of
2 m (7M+8M)
2. a) Define a back water curve and derive an expression for finding the length of the back water
curve.
b) A rectangular channel of 5 m width discharges water at the rate of 1.6 m
3
apron with 1/2800 slope at a velocity of 5 m/s. Determine the height of the hydraulic jump
and energy loss. (7M+8M)
3. What do you mean by dimensional numbers? Name any four dimensional numbers. Define and
above two numbers. (15M)
4. a) Show that the force exerted by a jet of water on an inclined fixed plate in the direction of the
jet is given by F
=? aV
2
sin
2
?=inclination of the plate with the jet.
b) A blade turns the jet of diameter 3 cm at a velocity of 20 m/s by 60?. Determine the force
exerted by the blade on the fluid. (7M+8M)
b) Describe functions of various main components of Pelton turbine with neat sketch (7M+8M)
6. a) What do you mean by surge tank? What are different types of surge tanks?
b) Explain various characteristics curves of a hydraulic turbine. (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
sketches. (15M)
8. a) How do you estimate hydropower potential
1 of 1
R10
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FirstRanker.com
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
3
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
hydraulic jump.
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain and
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixed
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)
6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
8. Write short notes on the following:
a) Firm Power
b) Secondary power
d) Load duration curve. (15M)
1of 1
R10
FirstRanker.com
|''|''|||''|'''|||'|
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
slopes of 1 vertical to 2 horizontal, to carry 12 m
/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
2. Define specific energy? Sketch the specific energy curve and explain regimes of flow? Indicate
expressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
model.
models? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
direction of the jet with a velocity less than that of the jet.
exerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
b) List the various efficiencies used to express the performance of hydraulic turbines.
6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
7. What do you mean by manometric efficiency, mechanical efficiency and overall efficiency of
8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
b) Explain how hydropower plants are classified. (8M+7M)
1 of 1
R10
SET - 2
FirstRanker.com
|''|''|||''|'''|||'|
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
depth, critical velocity and alternate depths as applied to non-uniform flow.
b) A trapezoidal channel has a bed width of 5 m, side slopes of 1 upon 1.5 and Manning?s
n = 0.016. Compute the critical slope and the corresponding discharge for a critical depth of
2 m (7M+8M)
2. a) Define a back water curve and derive an expression for finding the length of the back water
curve.
b) A rectangular channel of 5 m width discharges water at the rate of 1.6 m
3
apron with 1/2800 slope at a velocity of 5 m/s. Determine the height of the hydraulic jump
and energy loss. (7M+8M)
3. What do you mean by dimensional numbers? Name any four dimensional numbers. Define and
above two numbers. (15M)
4. a) Show that the force exerted by a jet of water on an inclined fixed plate in the direction of the
jet is given by F
=? aV
2
sin
2
?=inclination of the plate with the jet.
b) A blade turns the jet of diameter 3 cm at a velocity of 20 m/s by 60?. Determine the force
exerted by the blade on the fluid. (7M+8M)
b) Describe functions of various main components of Pelton turbine with neat sketch (7M+8M)
6. a) What do you mean by surge tank? What are different types of surge tanks?
b) Explain various characteristics curves of a hydraulic turbine. (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
sketches. (15M)
8. a) How do you estimate hydropower potential
1 of 1
R10
FirstRanker.com
|''|''|||''|'''|||'|
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Derive the condition for the best side slope of the most economical trapezoidal channel.
b) Using Bazins formula, determine the discharge through a rectangular ordinary earthen
channel 2 m wide and 0.6 m deep with a slope of l in 2600. Assume Bazins constant
(7M+8M)
2. a) Define hydraulic jump and explain under what circumstances it occurs
b) Obtain an expression for the depth after the hydraulic jump and the loss of head due to the
jump. Write the assumptions made. (7M+8M)
3. State Buckingham?s ?-theorem. Why this theorem is considered superior over the Rayleigh?s
method for dimensional analysis. (15M)
4. a) Define the terms: i) Impact of jets, and ii) Jet propulsion.
such a way that the angle between the jet and the plate is 60?. Find the force exerted by the
jet on the plate i) in the direction normal to the plate, and ii) in the direction of the jet.
(6M+9M)
5. a) How will you classify the turbines?
6. What do you understand by the characteristics curves of turbine? Name the important
characteristics of a turbine. (15M)
8. a) What are the main components of hydropower plants and explain each in detail
b) Define the terms: i) load factor, ii) utilization factor and iii) capacity factor
(8M+7M)
1 of 1
R10
SET - 4
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(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
--- Content provided by FirstRanker.com ---
All Questions carry Equal Marks~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
--- Content provided by FirstRanker.com ---
3/s and depth of flow is
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
--- Content provided by FirstRanker.com ---
hydraulic jump.b) Define specific energy and draw the specific energy diagram. Explain how it is useful for
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
--- Content provided by FirstRanker.com ---
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain andexpression for the viscous force. (15M)
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
--- Content provided by FirstRanker.com ---
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixedsymmetrical plate at the center. Find the force exerted by the jet of water in the direction of
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
--- Content provided by FirstRanker.com ---
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
--- Content provided by FirstRanker.com ---
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neatsketches. (15M)
8. Write short notes on the following:
a) Firm Power
--- Content provided by FirstRanker.com ---
b) Secondary powerc) Diversity factor
d) Load duration curve. (15M)
1of 1
--- Content provided by FirstRanker.com ---
R10SET - 1
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--- Content provided by FirstRanker.com ---
FirstRanker.com|''|''|||''|'''|||'|
Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
--- Content provided by FirstRanker.com ---
HYDRAULICS AND HYDRAULIC MACHINERY(Civil Engineering)
Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
--- Content provided by FirstRanker.com ---
All Questions carry Equal Marks~~~~~~~~~~~~~~~~~~~~~~~~
1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
--- Content provided by FirstRanker.com ---
3/s and depth of flow is
1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
--- Content provided by FirstRanker.com ---
hydraulic jump.b) Define specific energy and draw the specific energy diagram. Explain how it is useful for
the open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
--- Content provided by FirstRanker.com ---
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain andexpression for the viscous force. (15M)
4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
--- Content provided by FirstRanker.com ---
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixedsymmetrical plate at the center. Find the force exerted by the jet of water in the direction of
the jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
--- Content provided by FirstRanker.com ---
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
--- Content provided by FirstRanker.com ---
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neatsketches. (15M)
8. Write short notes on the following:
a) Firm Power
--- Content provided by FirstRanker.com ---
b) Secondary powerc) Diversity factor
d) Load duration curve. (15M)
1of 1
--- Content provided by FirstRanker.com ---
R10SET - 1
FirstRanker.com
--- Content provided by FirstRanker.com ---
|''|''|||''|'''|||'|Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
--- Content provided by FirstRanker.com ---
(Civil Engineering)Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
--- Content provided by FirstRanker.com ---
~~~~~~~~~~~~~~~~~~~~~~~~1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
--- Content provided by FirstRanker.com ---
slopes of 1 vertical to 2 horizontal, to carry 12 m3
/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
--- Content provided by FirstRanker.com ---
2. Define specific energy? Sketch the specific energy curve and explain regimes of flow? Indicatethe features of critical flow? Deduce the condition for minimum specific energy and the related
expressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
--- Content provided by FirstRanker.com ---
model.b) Explain the terms: distorted models and undistorted models. What is the use of distorted
models? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
--- Content provided by FirstRanker.com ---
direction of the jet with a velocity less than that of the jet.b) A blade turns the jet of diameter 2.5cm at a velocity of 25 m/s by 60?. Determine the force
exerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
--- Content provided by FirstRanker.com ---
b) List the various efficiencies used to express the performance of hydraulic turbines.(7M+8M)
6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
--- Content provided by FirstRanker.com ---
7. What do you mean by manometric efficiency, mechanical efficiency and overall efficiency ofcentrifugal pump? (15M)
8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
--- Content provided by FirstRanker.com ---
b) Explain how hydropower plants are classified. (8M+7M)1 of 1
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--- Content provided by FirstRanker.com ---
SET - 2FirstRanker.com - FirstRanker's Choice
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--- Content provided by FirstRanker.com ---
|''|''|||''|'''|||'|Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
--- Content provided by FirstRanker.com ---
(Civil Engineering)Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
--- Content provided by FirstRanker.com ---
~~~~~~~~~~~~~~~~~~~~~~~~1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
3
--- Content provided by FirstRanker.com ---
/s and depth of flow is1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
hydraulic jump.
--- Content provided by FirstRanker.com ---
b) Define specific energy and draw the specific energy diagram. Explain how it is useful forthe open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain and
--- Content provided by FirstRanker.com ---
expression for the viscous force. (15M)4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixed
--- Content provided by FirstRanker.com ---
symmetrical plate at the center. Find the force exerted by the jet of water in the direction ofthe jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)
--- Content provided by FirstRanker.com ---
6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
--- Content provided by FirstRanker.com ---
sketches. (15M)8. Write short notes on the following:
a) Firm Power
b) Secondary power
--- Content provided by FirstRanker.com ---
c) Diversity factord) Load duration curve. (15M)
1of 1
R10
--- Content provided by FirstRanker.com ---
SET - 1FirstRanker.com
|''|''|||''|'''|||'|
--- Content provided by FirstRanker.com ---
Code No: R22014II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
--- Content provided by FirstRanker.com ---
Time: 3 hours Max. Marks: 75Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
--- Content provided by FirstRanker.com ---
1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
slopes of 1 vertical to 2 horizontal, to carry 12 m
--- Content provided by FirstRanker.com ---
3/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
2. Define specific energy? Sketch the specific energy curve and explain regimes of flow? Indicate
--- Content provided by FirstRanker.com ---
the features of critical flow? Deduce the condition for minimum specific energy and the relatedexpressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
model.
--- Content provided by FirstRanker.com ---
b) Explain the terms: distorted models and undistorted models. What is the use of distortedmodels? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
direction of the jet with a velocity less than that of the jet.
--- Content provided by FirstRanker.com ---
b) A blade turns the jet of diameter 2.5cm at a velocity of 25 m/s by 60?. Determine the forceexerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
b) List the various efficiencies used to express the performance of hydraulic turbines.
--- Content provided by FirstRanker.com ---
(7M+8M)6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
7. What do you mean by manometric efficiency, mechanical efficiency and overall efficiency of
--- Content provided by FirstRanker.com ---
centrifugal pump? (15M)8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
b) Explain how hydropower plants are classified. (8M+7M)
--- Content provided by FirstRanker.com ---
1 of 1
R10
SET - 2
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Code No: R22014
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II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Time: 3 hours Max. Marks: 75
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Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
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1. a) Explain the terms specific energy of a flowing liquid, minimum specific energy, criticaldepth, critical velocity and alternate depths as applied to non-uniform flow.
b) A trapezoidal channel has a bed width of 5 m, side slopes of 1 upon 1.5 and Manning?s
n = 0.016. Compute the critical slope and the corresponding discharge for a critical depth of
2 m (7M+8M)
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2. a) Define a back water curve and derive an expression for finding the length of the back water
curve.
b) A rectangular channel of 5 m width discharges water at the rate of 1.6 m
3
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/s into a 5 m wideapron with 1/2800 slope at a velocity of 5 m/s. Determine the height of the hydraulic jump
and energy loss. (7M+8M)
3. What do you mean by dimensional numbers? Name any four dimensional numbers. Define and
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explain Reynold?s number, Froude?s number and Mach number. Derive expressions for anyabove two numbers. (15M)
4. a) Show that the force exerted by a jet of water on an inclined fixed plate in the direction of the
jet is given by F
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x=? aV
2
sin
2
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?, where a= Area of the jet, V=velocity of the jet and?=inclination of the plate with the jet.
b) A blade turns the jet of diameter 3 cm at a velocity of 20 m/s by 60?. Determine the force
exerted by the blade on the fluid. (7M+8M)
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5. a) What is draft tube? What are its functions?b) Describe functions of various main components of Pelton turbine with neat sketch (7M+8M)
6. a) What do you mean by surge tank? What are different types of surge tanks?
b) Explain various characteristics curves of a hydraulic turbine. (8M+7M)
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7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
sketches. (15M)
8. a) How do you estimate hydropower potential
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b) List out twelve important hydropower plants in India. (7M+8M)1 of 1
R10
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|''|''|||''|'''|||'|Code No: R22014
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
--- Content provided by FirstRanker.com ---
(Civil Engineering)Time: 3 hours Max. Marks: 75
Answer any FIVE Questions
All Questions carry Equal Marks
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~~~~~~~~~~~~~~~~~~~~~~~~1. a) Explain the terms: i) specific energy ii) critical depth and iii) Critical velocity.
b) In a rectangular open channel of 5 m width the flow rate is 12 m
3
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/s and depth of flow is1.0 m. Determine the critical depth and the alternate depth. (6M+9M)
2. a) Explain the term hydraulic jump. Derive an expression for the downstream depth of
hydraulic jump.
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b) Define specific energy and draw the specific energy diagram. Explain how it is useful forthe open channel flow. (8M+7M)
3. Assuming that the viscous force F exerted by a fluid on a sphere of diameter D depends on the
viscosity ?, mass density of the fluid ?, and the velocity of the sphere ?, obtain and
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expression for the viscous force. (15M)4. a) Obtain an expression for the force exerted by a jet of water on a fixed vertical plate in the
direction of the jet.
b) A jet of water of diameter 100 mm moving with a velocity of 35 m/s strikes a curved fixed
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symmetrical plate at the center. Find the force exerted by the jet of water in the direction ofthe jet, if the jet is deflected through an angle of 120? at the outlet of the curved plate.
(7M+8M)
5. a) Explain how hydraulic turbines are classified.
b) Explain briefly the principles on which a Kaplan turbine works. (7M+8M)
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6. a) What is cavitation? How can it be avoided in reaction turbine?
b) What is the basis of selection of a turbine at a particular place? (8M+7M)
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
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sketches. (15M)8. Write short notes on the following:
a) Firm Power
b) Secondary power
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c) Diversity factord) Load duration curve. (15M)
1of 1
R10
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SET - 1FirstRanker.com
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Code No: R22014II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
--- Content provided by FirstRanker.com ---
Time: 3 hours Max. Marks: 75Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
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1. a) Derive the condition for depth of flow of a most economical circular channel section subject
to the condition for maximum velocity.
b) Determine the economical cross-section for an open channel of trapezoidal section with side
slopes of 1 vertical to 2 horizontal, to carry 12 m
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3/s, the bed slope being 1/2100. Assume
Manning coefficient as 0.022. (7M+8M)
2. Define specific energy? Sketch the specific energy curve and explain regimes of flow? Indicate
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the features of critical flow? Deduce the condition for minimum specific energy and the relatedexpressions in rectangular channels? (15M)
3. a) Explain different types of hydraulic similarities that must exist between a prototype and its
model.
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b) Explain the terms: distorted models and undistorted models. What is the use of distortedmodels? (7M+8M)
4. a) Derive the expression for the force exerted by a water jet on a plate moving in the same
direction of the jet with a velocity less than that of the jet.
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b) A blade turns the jet of diameter 2.5cm at a velocity of 25 m/s by 60?. Determine the forceexerted by the blade on the fluid. (8M+7M)
5. a) What are the main differences between impulse and reaction turbines?
b) List the various efficiencies used to express the performance of hydraulic turbines.
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(7M+8M)6. a) What are unit quantities? Define the unit quantities for turbine.
b) By means of a neat sketch explain the governing mechanism of Francis turbine. (7M+8M)
7. What do you mean by manometric efficiency, mechanical efficiency and overall efficiency of
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centrifugal pump? (15M)8. a) What is meant by flow duration curve and power duration curve? How do you differentiate
these? How would you construct such curves?
b) Explain how hydropower plants are classified. (8M+7M)
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1 of 1
R10
SET - 2
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FirstRanker.com
|''|''|||''|'''|||'|
Code No: R22014
--- Content provided by FirstRanker.com ---
II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
Time: 3 hours Max. Marks: 75
--- Content provided by FirstRanker.com ---
Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
--- Content provided by FirstRanker.com ---
1. a) Explain the terms specific energy of a flowing liquid, minimum specific energy, criticaldepth, critical velocity and alternate depths as applied to non-uniform flow.
b) A trapezoidal channel has a bed width of 5 m, side slopes of 1 upon 1.5 and Manning?s
n = 0.016. Compute the critical slope and the corresponding discharge for a critical depth of
2 m (7M+8M)
--- Content provided by FirstRanker.com ---
2. a) Define a back water curve and derive an expression for finding the length of the back water
curve.
b) A rectangular channel of 5 m width discharges water at the rate of 1.6 m
3
--- Content provided by FirstRanker.com ---
/s into a 5 m wideapron with 1/2800 slope at a velocity of 5 m/s. Determine the height of the hydraulic jump
and energy loss. (7M+8M)
3. What do you mean by dimensional numbers? Name any four dimensional numbers. Define and
--- Content provided by FirstRanker.com ---
explain Reynold?s number, Froude?s number and Mach number. Derive expressions for anyabove two numbers. (15M)
4. a) Show that the force exerted by a jet of water on an inclined fixed plate in the direction of the
jet is given by F
--- Content provided by FirstRanker.com ---
x=? aV
2
sin
2
--- Content provided by FirstRanker.com ---
?, where a= Area of the jet, V=velocity of the jet and?=inclination of the plate with the jet.
b) A blade turns the jet of diameter 3 cm at a velocity of 20 m/s by 60?. Determine the force
exerted by the blade on the fluid. (7M+8M)
--- Content provided by FirstRanker.com ---
5. a) What is draft tube? What are its functions?b) Describe functions of various main components of Pelton turbine with neat sketch (7M+8M)
6. a) What do you mean by surge tank? What are different types of surge tanks?
b) Explain various characteristics curves of a hydraulic turbine. (8M+7M)
--- Content provided by FirstRanker.com ---
7. Define a centrifugal pump. Explain the working of a single stage centrifugal pump with neat
sketches. (15M)
8. a) How do you estimate hydropower potential
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b) List out twelve important hydropower plants in India. (7M+8M)1 of 1
R10
--- Content provided by FirstRanker.com ---
SET - 3FirstRanker.com
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--- Content provided by FirstRanker.com ---
Code No: R22014II B. Tech II Semester Regular Examinations, August? 2014
HYDRAULICS AND HYDRAULIC MACHINERY
(Civil Engineering)
--- Content provided by FirstRanker.com ---
Time: 3 hours Max. Marks: 75Answer any FIVE Questions
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~
--- Content provided by FirstRanker.com ---
1. a) Derive the condition for the best side slope of the most economical trapezoidal channel.
b) Using Bazins formula, determine the discharge through a rectangular ordinary earthen
channel 2 m wide and 0.6 m deep with a slope of l in 2600. Assume Bazins constant
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k = 1.303. If Manning constant for this type is 0.025, determine and compare the flow.(7M+8M)
2. a) Define hydraulic jump and explain under what circumstances it occurs
b) Obtain an expression for the depth after the hydraulic jump and the loss of head due to the
jump. Write the assumptions made. (7M+8M)
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3. State Buckingham?s ?-theorem. Why this theorem is considered superior over the Rayleigh?s
method for dimensional analysis. (15M)
4. a) Define the terms: i) Impact of jets, and ii) Jet propulsion.
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b) A jet of water of diameter 55 mm moving with a velocity of 20 m/s strikes a fixed plate insuch a way that the angle between the jet and the plate is 60?. Find the force exerted by the
jet on the plate i) in the direction normal to the plate, and ii) in the direction of the jet.
(6M+9M)
5. a) How will you classify the turbines?
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b) Differentiate between turbines and pumps. (7M+8M)6. What do you understand by the characteristics curves of turbine? Name the important
characteristics of a turbine. (15M)
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7. Draw and discuss the operating characteristics of a centrifugal pump (15M)8. a) What are the main components of hydropower plants and explain each in detail
b) Define the terms: i) load factor, ii) utilization factor and iii) capacity factor
(8M+7M)
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1 of 1
R10
SET - 4
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