being mechanical - first year

ECE-301/Ms. Sudhir Kumar Katiyar Date: 13 / 09 /2010

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SHRI RAMSWAROOP MEMORIAL COLLEGE OF ENGG. & MANAGEMENT

B.Tech. [SEM III (ME)] QUIZ TEST-1

(Session : 2010-11)

FLUID MECHANICS (ECE-301)

Roll No.

(To be filled by the Student) Note:

Part – A (Questions from Tutorial Sheet)

[10 Marks] Q1)An inclined rectangular sluice gate AB, 1.2 m by 5 m size as shown in fig. is installed to control the discharge the water , the end A is hinged . Determine the force normal to the gate applied at B to open it? Q-1 [5]

Q2) The converging pipe with inlet and outlet diameters of 20cm and 15 cm carries the oil whose specific gravity is 0.8.The velocity at the entry is 2.5m/s; find the velocity at the exit of the pipe and oil flow rate in kg/sec Q-7 [2.5+2.5]

Part – B [20 Marks]

Q1) 1-What is difference between [3+3] (a) Uniform and non uniform flows (b) Laminar and turbulent flows Q2) Determine the magnitude direction and point of action of the hydrostatic force per unit width of the curve surface AB which is in the form of quadrant of a circle of radius 1.5 m. [7]

Q3) Drive an expression for the depth of parabolic formed by the surface of a liquid contained in a cylindrical tank which is rotating at constant angular velocity ώ about its vertical axis. [7] __________X__________

Academic/26 Refer/WI/ACAD/18

Max. Marks: 30Time: 1 Hour

ECE-301/Ms. Sudhir Kumar Katiyar Date: 13 / 09 /2010

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(Session : 2010-11) FLUID MECHANICS

(ECE-301)

Roll No.

(To be filled by the Student) Note: Attempt all the questions


[10 Marks] Q1) Find the resultant force due to water per meter length acting on the circular gate of radius 3m as shown in fig. Find angle at which resultant force will act. (Q.No.3) [5]

Q2) A jet of water from a 25mm diameter nozzle is directed vertically upwards. Assuming that the jet remains circular and neglecting any loss of energy, What will be the diameter at a point 4.5m above the nozzle, if the velocity with which the jet leaves the nozzle is 12 m/s) (Q.No.12) [5]



Q3) Drive an expression for the depth of parabolic formed by the surface of a liquid contained in a cylindrical tank which is rotating at constant angular velocity ώ about its vertical axis. [7]

__________X_________



ECE-301/Ms. Sudhir Kumar Katiyar Date:13 / 09 /2010

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(Session : 2010-11)


Roll No.

(To be filled by the Student) Note: Attempt all the questions


[10 Marks] Q1) A cylindrical vessel 12 cm in diameter and 30 cm deep is filled with water up to top. The vessel is open the top. Find the quantity of liquid left in vessel, when it is rotated about its vertical axis with a speed of (a) 3000rpm (b) 600 rpm (Q-5) [2.5+2.5] Q2) A vessel cylindrical in shape and closed at the top and bottom , contains water up to a height of 80 cm. the diameter of vessel is 20 cm and length of vessel 120cm .The vessel is rotated at a speed of 400 r.p.m about its vertical axis ,Find the height of parabolied formed (Q-6) [5]



Q3) Drive an expression for the depth of parabolic formed by the surface of a liquid contained in a cylindrical tank which is rotating at constant angular velocity ώ about its vertical axis. [7]

__________X__________



EME-505 / Mr. sudhir kumar katiyar Date: 26/08/2010

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B.Tech. [SEM III (ME)] SURPRISE QUIZ TEST-1

(Session : 2010-11)

FLUID MECHANICS-1 (ECE-301)

Name:-_________________________ Roll No.

(To be filled by the Student)

Q1) Explain briefly the following: (i) Surface tension, and (ii) Compressibility.

Q2) The space between two parallel plates 5mm apart is filled with crude oil. A force of 2 N is required to drag the upper plate at a constant velocity of 0.8 m/s. The lower plate is stationary. The area of the upper plate is 0.09 m2. Determine: (i) The dynamic viscosity, and (ii) the kinematic viscosity of the oil in stokes if the specific gravity of oil is 0.9.


Time: 15 Min. Max. Marks: 10

EME-505/Mr Sudhir kumar katiyar Date: 26/08/2010

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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) What are mechanical gauges? Name three important mechanical gauges. Q2) Find the depth of a point below water surface in sea where the pressure intensity is 100.55 kN/m2. Specific gravity of sea water is 1.025.


ECE301/Sudhir kumar katiyar Date: 16/9/2010

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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) If potential function is 3xy, find x and y component of velocity at (1, 3) and (3,3). Determine the discharge passing through these points of stream lines. Q2) Show that the stream lines and equipotential lines from a net of mutually perpendicular lines.



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B.Tech. [SEM V (ME)] SURPRISE QUIZ TEST-1

(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) A block of wood of specific gravity 0.7 floats in water. Determine the meta-centric height of the block if its size is 2m x 1m x 0.8m. Q2) Why does the viscosity of a gas increases with the increase in temperature while that of a liquid decreases with increase in temperature?



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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) Differentiate between: (i) liquids and gases, (ii) Real fluids and ideal fluids, (iii) Specific weight and specific volume of a fluid. Q2) Determine the total pressure on a circular plate of diameter 1.5 m which is placed vertically in water in such a way that the centre of the plate is 3 m below the free surface of water. Find the position of centre of pressure also.


ECE-301 / Mr. sudhir kumar katiyar Date: 16/9/2010

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(Session : 2010-11)

FLUID MECHANICS-1 (ECE-301)

Name:-_________________________ Roll No.


Q1) The velocity potential for a two dimensional flow is given as Φ=x (2y-1) Determine

(i) The velocity at the point P(4,5) (ii) The value of stream function Ψ at the point P.

Q2) Define velocity potential function and stream function?


Time: 15 Min. Max. Marks: 10

ECE-301/Mr Sudhir kumar katiyar Date: 16/9/2010

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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) In a 2-D in compressible flow the fluid velocity components are given by u=x-4y and v=-y-4x. Show that velocity potential exists and find its form as well stream function. Q2) Explain the following

1) Path line 2) Stream line.



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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) If potential function is 3xy, find x and y component of velocity at (1, 3) and (3,3). Determine the discharge passing through these points of stream lines. Q2) Show that the stream lines and equipotential lines from a net of mutually perpendicular lines.



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B.Tech. [SEM V (ME)] SURPRISE QUIZ TEST-2

(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) If potential function is 5xy, find x and y component of velocity at (3, 5) and (1, 2). Determine the discharge passing through these points of stream lines Q2) Explain the working processes of pressure transducer used for pressure



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(Session : 2010-11)


Name:-_________________________ Roll No.


Q1) In a 2-D in compressible flow the fluid velocity components are given by u=4x-5y and v= -2y-3y. Show that velocity potential exists and find its form as well stream function. Q2) Explain the following

(1) Mach number (2) Frude’s number


being mechanical - first year

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