Show that in case of forced vortex flow, the rise of liquid level at the ends is equal to the fall of liquid level at the axis of rotation. A pipe line, 600mm diameter carrying oil of specific gravity is 0.85 at the flow rate of 1800lit/s, has a 900 bend in the horizontal plane. The pressure at the entrance to the bend is 20m of oil and the loss of head in the bend is 2m of oil. Find the force exerted by the oil on the bend. What do you mean by boundary layer separation? What is the effect of pressure gradient on boundary layer separation? Air flows over a flat plate 1m long at a velocity of 6m/s. Determine (i) the boundary layer thickness at the end of the plate (ii) Shear stress at the middle of the plate (iii) total drag per unit length on the sides of the plate. Take mass density = 1.226 kg/m3 and kinematic viscosity = 0.15 10-4 m3/s for air.
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The velocity components in a two dimensional flow field for an incompressible fluid are expressed as y3 x3 u= 2 x x 2 y ; v = xy 2 2 y 3 3 Obtain an expression for stream function . Differentiate between i) Stream line (ii) Streak line (iii) Path line.
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II-B.Tech. I-Semester Supplementary Examinations June, 2003. FLUID MECHANICS (Common to Mechanical Engineering, Production Engineering and Mechatronics) Time: 3 hours Max. Marks:70 Answer any FIVE questions All questions carry equal marks --1.a) Define the terms: i) Ideal fluid (ii) Vapour pressure (iii) Gauge pressure iv) Hydrostatic law (v) Specific gravity. b) A square metal plate 1.5m side and 1.5mm thick weighing 50 N is to be lifted through a vertical gap of 25mm of infinite extent. The oil in the air gap has a specific gravity of 0.95 and viscosity of 2.5 N-s/m2. If the metal plate is to be lifted at a constant speed of 0.1 m/s, find the force and power required.
State fundamental equations which govern compressible fluid flow and what are the controlling non-dimensional parameters governing such a flow? A supersonic aircraft flies at an altitude of 2000m where the air temperature is 30C. Determine the speed of the air craft if its sound is heard 4.5 sec after its passage over the head of an observer.
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Code No: 210351
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At the top of a mountain the temperature is -50C. The pressure and the temperature at the sea-level are 101.3kN/m2 and 15oC. If air density at the sea level is 1.284 kg/m3, calculate the height of the mountain above sea-level. Assume dry adiabatic conditions. A rectangular gate 2 m long and 1.5m wide lies in a vertical plane with its centre 2.5m below water surface. Calculate magnitude, direction and location of the total force on the gate.
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A pipe carrying water tapers from cross section of 0.3m2 at A to 0.14m2 at B. The average velocity at A is 1.8m/s and the pressure 441 kN/m2 (gauge). If the frictional effects are negligible, determine the pressure at B which is 5.5m above the level of a A. State and prove Bernoulli’s theorem. Mention its limitations.
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Derive the continuity equation in 3-dimensional Cartesian co-ordinate system for unsteady, compressible fluid flow. Calculate the capillary rise ‘h’ in a glass tube of 3mm diameter when immersed in water at 200C. Take for water at 200C as 0.075 N/m. What will be percentage increase in the value of ‘h’ if the diameter of the glass tube is 2mm?
starter, (iii) Auto transformer starter limiting the supply line starting current to · twice the full-load value. Find the auto-transformer tapping in this case. - - -.
1.a) Explain with a neat sectional view the operation and advantages of hot blast · cupola. b) Discuss the various types of refractories used for cupola lining.
5.a) What is sine bar. Sketch an arrangement for any one of the applications. b) Describe the constructional features and working of optical collimator.
Polynomials in single variable are stored in the form of linked lists. Each · structure has space for one coefficient and one exponent and a link. Assume.
armature and field resistances are 0.03 ohm. And 60 ohm ... 6.a) Explain with the help of diagrams how a rotating magnetic field is produced in · the air gap of a ...
Explain in detail gas liquid contact in mechanically agitated vessels. ... b) Derive the expression for height of a water cooling tower by using HTU and NTU.
Explain determinants and use of determinancy diagram. 2.a) ... Draw the E/R model representation of many-to-many relationship and · superfluous entity tables.
b) Give the steps of a registry-based algorithm for finding and using idle · workstations. 4.a) With reference to distributed file system implementation explain i) ...
b) With the help of a neat sketch of psychometric chart show the various psychrometric · processes naming them clearly. c) Explain what effective temperature is ...
b) State the method of manufacturing and special qualities of the following bricks. (i) sand â lime bricks (ii) Fly ash bricks (iii) Stabilised bricks. c) Explain briefly ...
the following (with comments and indentation) · a) To read the ... OR. Develop a complete COBOL program with indentation and comments to do the · following:.
... shown below. Take node 4 as reference · node. 7.a) Obtain the relation between Y and Z parameters. b) Find A B C D parameters of the network shown below.
320256. III-B.Tech. II Semester Supplementary Examinations December 2002/January 2003 · MODELLING OF POWER SYSTEM COMPONENTS · (Electrical and Electronics Engineering) · Time: 3 hours · Max. Marks: 70 · Answer any FIVE questions · All questions carry
c) A simple Delavel steam turbine nozzle ring is supplied with 200 kg/hr of dry · steam at 10 ... iii) The dryness of steam just as it leaves the turbine rotor blading.
10 kVA at 0.8 pf lagging, load B draws 15 kW at a 0.5 pf lagging and load C · dissipates 5 kW at unity pf. (i) Find active power, reactive power and line current.
Code No:220352. II.B.Tech II-Semester. Supplementary ... not to exceed 90 N/mm · 2 · and (ii) The maximum shear stress is not to exceed 45 · N/mm · 2 . Tube.
1011. 7.a) Discuss the generation and detection of pulse width modulation. b) Explain the principle transversal equiliber. 8. Write short notes on the following:.
potential and muscle contraction. 2.a) With a neat ... b) Explain the origin of ECG from the heart muscles. ... 4.a) What are the different types of muscles? Explain ...
... plate capacitor is · equal to the conduction current in the leads. b) Investigate the vector magnetic potential for the infinite, straight, current element · L in free space. 3. Find the magnetic field intensity due to the presence of a finite st