II B.Tech II Semester Supplementary Examinations, April/May 2005 FLUID MECHANICS (Chemical Engineering) Time: 3 hours Max Marks: 70 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Differentiate between total pressure and center of pressure (b) Obtain an expression for the horizontal and vertical components of the resultant force on a submerged curved surface. 2. (a) Define Velocity head, Datum head and pressure head. What do they represent? (b) A 40cm diameter pipe conveying water, branches into two pipes of diameters 30cm and 20cm respectively. If the anerage velocity in the 40cm diameter pipe is 3 on/sec. Find the discharge in this pipe. Also determine the velocity in 20cm pipe if the anerage velocity in 30cm diameter pipe is 2m/sec. 3. (a) Find an expression for the power transmission through pipes. What is the condition for maximum tramission of power . (b) A pipe of diameter 250 mm and length 3500 m is used for the transmission of power by water. The total head at the inlet of the pipe is 500 m. Find the max. power available at the out let of the pipe. Take f=0.006. p 4. (a) Prove that the velocity of sound in a compressible fluid is given by c = k/ρ where k=Bulk modulus of fluid and ? is density of fluid. (b) A normal shock wave occurs in a duct in which air is flowing at a Mach number of 1.50. The static pressure and temperature upstream of the shock wave are 1.5 bar and 27o C. Determine the pressure, temperature and the Mach number downstream of the shock. Also calculate the strength of shock. Take k=1.4. 5. A bed of fagged silica sand 9 kg in weight, 1.24x10−4 m in size is to be fluidized in 0.1 m internal diameter cylindrical column with air at 210 C and entering at a rate of 3.14x10−4m3 /sec. The outlet pressure is 1.013x105 pascal. The specific gravity of sand is 2.65. Determine whether fluidization will occur if so estimate the expanded bed height. The value of minimum bed voidage is 0.48. 6. Write short notes on the following (a) Valves. (b) Fluid moving machinery. (c) Positive displacement pumps. 7. Explain Positive displacement compressors with figures.
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8. A horizontal venturimeter having a throat diameter of 20mm is set in a 75mm Internal diameter pipeline. A manometer containing mercury under water measures the pressure differential over the instrument. When the manometer reading is 500mm, what is the flow rate? If 12 percent of the differential is permanently lost, what is the power consumption of the meter? ?????
(a) Apply the Bresenham's algorithm to turn up pixels along the line segment determined by points (5,7) and (12,11). (b) Give parametric equation of a line ...
error in the reading due to loading effect. 2. (a) Explain in detail the measurement of power using electrodynamometer. (b) Write short notes on watt-hour meter.
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).
(b) Explain about piezo electric transducer? [8] · 8. Write short notes on: · (a) LVDT · (b) Gain and bandwidth of single stage amplifier? (c) Barkhuasen criterion?
1.a) Explain the two waltmeter method of measuring power in 3 S systems (star and ... Discuss in detail about ABCD and hybrid parameters of two-port networks.
COMPUTER GRAPHICS. (Mechatronics). Time: 3 hours ... (a) Entire picture three times as large. (b) Counter clock-wise rotation about the origin, by 90 degrees.
(b) Design a full adder circuit and implement it with only NOR Gate. 5. ... (b) Develop a synchronous three bit up/down counter with a grey code sequence.
Describe the schematic arrangement of a thermal power station and explain the ... (a) Mention the advantages and disadvantages of Nuclear power plants.
Explain load bearing properties of articular cartilage in synovial joints. [16] · 8. Describe the function of ligaments and tendons in normal locomotion. [8+8] · *****.
Write notes on any TWO of the following: · a) · Collison resolution techniques in Hashing b). Spanning trees c). Traversals of a binary tree. @@@@@. OR.
(a) What are the machinery used in a sugar industry? (b) What are units operated by steam in sugar industry. 6. Write on: (a) Raw material requirements for ...
Pascal. 4. Explain different parameter passing and evaluation techniques followed. Demonstrate these concepts with suitable examples. 5.a) What are the ...
(a) Explain the principle and measurement of temperature using a thermocouple. (b) What are ... Explain the principle of an ultrasonic Doppler blood flow meter.
(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].
Determine the length of the wire needed if the diameter · of the wire is 0.25 mm. Assuming that the temperature coefficient of resis- · tance of the wire is constant, ...
(b) Draw the block schematic of 4x1 MUX and give its truth table. [6] · 6. (a) Design a full adder with minimum number of NAND gates. [8] · (b) Draw the logic ...
