Maharashtra State Board of Technical Education 2012-4th Sem Diploma Chemical Engineering for GroupSubject Fluid Flow Operations(12128) - Question Paper
MSBTE ques. Paper for Chemical Engineering Group
Fourth Semester
Subject Fluid Flow Operations(12128)
Scheme - E
Sample Question Paper
Course Name : Chemical Engineering Group
Course Code : CH
12128
Max. Marks: 100
Semester : Fourth
Subject Title : Fluid Flow Operations
Time : 3 Hrs.
Instructions:
I ] All questions are compulsory.
2] Illustrate your answer with neat sketches wherever necessary.
3] Figures to the right indicate full marks.
4] Assume Suitable data if necessary.
5] Preferably, write the answers in sequential order.
Q.l (A) Attempt any SIX of the following: 12 Marks
a. Define Incompressible fluid.
b. Write an expression for Reynolds number.
c. NRe is 160. Calculate value of T.
d. Name two pipe fittings.
e. What is a G. I. pipe?
f. What is the function of the pump?
g. Give application of Gear pump.
h. What do you mean by vacuum?
(B) Attempt any TWO of the following: 08 Marks
a. Draw a neat diagram of an Inclined tube manometer and write expression to
calculate pressure drop.
b. Give concept of viscosity and derive Newtons law of viscosity.
c. Write down the pressure range developed by faa blower and compressor.
Q.2 Attempt any FOUR of the following: 16 Marks
a. Derive an expression to calculate pressure drop by a U- tube manometer.
b. Define and name one Newtonian and one Non- Newtonian fluid.
c. State equation of continuity.
d. Volumetric flow rate of water is 1000 nvVhr. How much is the mass How rate in kg/hr.
e. Draw a schematic diagram of a Gate valve.
f. Differentiate Laminar flow and Turbulent flow on following point:
i) Nature of flow pattern
ii) Reynolds Number
Q.3 Attempt any FOUR of the follow ing: 16 Marks
a. Name the various types of energies a liquid possess flowing from a point at lower level to hieher level.
b. Give a broad classification of pumps.
c. Give a relation of velocity at any point at distance *r from center to maximum Velocity in the pipe line.
d. Draw a neat sketch of the following pipe fittings and give their specific applications
i) Reducer ii) Tee.
e. Give concept of formation of boundary layer.
f. What is Non Return Valve? Name any type and its specific application.
Q.4 Attempt any TWO of the following: 16 Marks
a. 6 litres per minute of Toulene is flowing through a pipe of 1.2 cm i.d. pipe. If the density of Toulene is 0.87 gm/cm3. Calculate
i. Volumetric flow rate in cm3/sec
ii. Mass flow rate in gm/sec
iii. Average velocity in cm/sec
iv. Mass velocity in gm/sec.cnr
b. Kerosene is flowing from tank A to tank B as shown in the fig. Density of kerosene is 0.816 gm/cm3. Calculate velocity of kerosene at point C for the following conditions.
i) Tank A and tank B both are at atmospheric pressure and there is no frictional loss in the connecting pipeline and no pump is used.
ii) Tank A at atmospheric pressure and tank B at 1.2 atmospheric pressure. Frictional loss of 0.25 kgf/kg and no pump is used.
c. Water is being pumped from a large reservoir resting on floor at the rate of 5 m3/hr to an open tank of an absorption tower through a 50 mm i.d. pipe. The point of discharge is 6 m above the floor and frictional losses in the entire system is 0.25 kgf-m/kg. At what height in the lower reservoir the water be kept if the pump can develop
0.1 hp.
Q.5 Attempt any FOl'R of the following: 16 Marks
a. Differentiate a Gate valve and Globe Valve on the following point:
b. Pressure drop ii) Internal construction.
c. Write Hagen Poiseuilles equation.
d. Draw a neat diagram of a double acting reciprocating pump in action on suction stroke and discharge stroke.
e. Draw a neat diagram of a centrifugal pump and name its different parts.
f. Describe working of a centrifugal compressor.
Q.6 Attempt any FOUR of the following: 16 Marks
a. Draw a diagram of a gear pump and name its parts.
b. How pressure is developed in a reciprocating pump?
c. Write note on :
i) Air Binding
ii) Priming.
d. Describe the working of Steam Jet ejector.
e. How calibration of an Orifice meter is done in a laboratory?
f. A Venturi meter placed in 75 mm diameter horizontal pipe has a throat diameter of 25 mm. Determine the flow rate through the pipe in lit/mia when venturi head is 41.2 cm of water. Assume discharge coefficient to be 0.77.
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