II B.Tech I Semester Supplementary Examinations, May 2005 FLUID MECHANICS ( Common to Mechanical Engineering,Mechatronics and Production Engineering) Time: 3 hours Max Marks: 70 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Derive the equation for total pressure and centre of pressure for vertical plane surface. (b) If the velocity profile of a fluid over a plate is a parabolic with the vertex 20 cm from the plate, where the velocity us 120 cm/sec. Calculate the velocity gradients and shear stresses at a distance of 0,10 and 20 cm from the plate, if the viscosity of the fluid is 8.5 poise. 2. (a) Define stream line and path line. Show that stream lines and equipotential lines are orthogonal to each other. (b) Explain the characteristics of stream function and velocity potential functions? 3. (a) Derive euler’s equation of motion and along a stream line with usual notations. (b) An open circular cylinder of 15 cm diameter and 100 cm long contains water upto a height 80 cm. Find the maximum speed at which the cylinder is to be rotated about its vertical axis so that no water spills. 4. (a) Explain the characteristics of boundary layer along a this flat plate with a neat sketch. (b) Define i. Aerofoil ii. Drag and lift forces iii. Pressure and form drags 5. (a) Derive the expression for stagnation pressure and stagnation density. (b) Define MACH NUMBER and write the classification of flows based on MACH NUMBER and also derive the equation for MACH NUMBER. 6. (a) Derive the equation of Reynolds number and write the classification of flows based on Reynolds number for pipes. (b) A laminar flow is taking place in a pipe of diameter of 20cm. The maximum velocity is 1.5m/s. Find the mean velocity and the radius at which this occurs. Also calculate the velocity at 4cm from the wall of the pipe. 7. (a) Derive Dercy Weibach equation, for turbulent flow with usual notations. (b) Distinguish between pipes in series and pipes in parallel with neat sketches. 1 of 2
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Code No: OR210351
8. (a) Derive the equation of discharge over a triangular notch with usual rotations. (b) Write short notes on: i. Manometers ii. Viscometers iii. Pressure gauges. ?????
(figure.1). (c) Obtain Thevenin's equivalent circuit for the network below figure 2. 1 of 3 ... (a) Obtain open circuit and short circuit parameters. Obtain relation ...
Show the reaction mechanisms of the following reactions. (a) Gatterman reaction. ... How will you determine the configuration of glucose with the help of Fischer's method? 7. (a) What ... Explain the theory of colour and constitution? *****. 1 of 1.
Maximize the following problem using Simplex Method. Z = 10x + y + ... 10; x1, x2 ⥠0. 8. Write short notes on the following: (a) Kuhn-Rucker conditions. 1 of 2 ...
b) Prove the independent laws for the elements of a lattive. 4. Using Warshall's algorithm, compute the adjacency matrix of the transitive · closure of the digraph.
Functions with half wave symmetry have only odd harmonics. 3. (a) Determine ... (a) State and prove the convolution and scale change properties in z transform.
to overcome this problem. Discuss. 7. (a) Distinguish between Mealy and Moore machines. (b) Convert the following Mealy machine into a corresponding Moore ...
BIO-CHEMISTRY. (Bio-Medical Engineering). Time: 3 hours. Max Marks: 70 ... Write an essay on protein synthesis. 6. What is the mechanism behind Generation ...
(b) Explain the basic principle of the instrument used for Condition monitoring · of any process. [8+8] · 2. (a) Compare and construct the functioning of rupture ...
What is the theory of lubrication? Explain how surface tension plays a role in the · performance of lubricating oils and hydraulic fluids? What is surface tension ...
(b) What is the purpose of providing âbondsâ in brick work. With the help of · neat sketches illustrate âEnglish bondâ. [8+8] · 2. (a) What is a âdamp-proof courseâ?
A silica brick layer on inside is laid to 150mm thickness and a · magnesia brick of 200mm thickness on outside. The inside and outside wall · surfaces are at 650 ...
(b) The following observations are related to a closed compass traverse ABCD. Find out the stations which suffer local attraction and give the values of the.
2. Explain the following: · (a) Reynolds number · (b) Nusselt number · (c) log mean temperature differene. (d) importance of heat transfer in furnace technology.
NR. (b) Calculate the density of naphthalene decahydride (C10H18) from its refractive index value of 1.4804 at 18 oC. [10+6] · 8. (a) Explain how the depression ...
diagrams. Show that the entropy change during the cycle is zero ... if the small amounts of argon and carbon oxide present in the mixture are · neglected.
8.a) What are the constraints on ROC for various classes of signals in z transform? b) Find the z transform of the sinusoidal signal XT (n)=sin (bn)*uT (n).
Pascal. 4. Explain different parameter passing and evaluation techniques followed. Demonstrate these concepts with suitable examples. 5.a) What are the ...
(a) Job order production and batch production system. (b) Mass production and flow production. [4+4+4+4] · 7. DefineâCritical pathâ, âslack timeâand âDummy ...
(b) One bag contains 4 White balls and 3 black balls and a second bag contains 3 ... [8+8] · 3. (a) The amount of bread ( in hundreds of pounds) X that a certain ...
(c) Explain sign conventions of heat and work in thermodynamics. [5+5+6] · 3. (a) State and explain second law of thermodynamics. (b) Define and explain ...
b=4.318 cm is fed by a 4 GHz carrier from a coaxial cable. Determine if a · TE10 mode will be propagated. If so calculate the phase velocity and group · velocity.
(c) An amplifier with voltage gain of 60 decibels uses 0.05 of its output voltage in · negative feedback. Calculate the gain of the feedback amplifier. [6+6+4].
