IV B.Tech I Semester Examinations,May 2011 NON DESTRUCTIVE TESTING Metallurgy And Material Technology Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. With neat sketches explain the major steps in fluorescent penetrant inspection. [16]
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2. Which nondestructive testing method is best suited to determine the wall thickness as the bottom of a steel tank? Discuss how it will be done. [16]
3. (a) What is the use of fluorescent magnetic particles?
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(b) What are the reasons for demagnetization of parts? Explain various demagnetization methods that are used in industrial practice.
(c) Discuss the applications, advantages and limitations of magnetic yokes and prod contacts used in magnetic particle inspection. [3+6+7] 4. (a) What factors affect the magnitude of induced eddy currents? Explain briefly.
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(b) Explain different types of coils used for the detection of eddy currents. [8+8] 5. (a) What is Remanent Magnetization? Explain with the help of Magnetic hysteresis loop. (b) Write a note on principle and applications of Residual magnetism.
[8+8]
6. (a) Name different types of infrared (IR) detectors. Give advantages and disadvantages of IR detectors.
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(b) Discuss the applications of thermal methods.
[8+8]
7. Discuss in detail the defect detection in solid specimens by Holographic testing. [16]
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8. With a neat sketch discuss the working procedure of neutron radiography, and also give applications, advantages and limitations of this method. [16] ?????
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Code No: 07A70607
R07
Set No. 4
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IV B.Tech I Semester Examinations,May 2011 NON DESTRUCTIVE TESTING Metallurgy And Material Technology Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Discuss the important advantages, limitations and applications of the Magnetic Methods. [16]
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2. With a neat sketch discuss the principle and working procedure of a 00 twin crystal compressional wave probe. [16] 3. Write a note on various types of developers; and also discuss its properties.
[16]
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4. (a) For what purposes other than detection of defects can electrical test methods be used?
(b) How does the type of material being tested and the type of defect being sought affect the choice of test frequency in eddy current inspection? (c) Explain the use of :
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i. Double primary coil system and ii. Differential coil system for inspection of tubes and bars.
[6+5+6]
5. (a) Give the limitations of x-ray diffraction method and ultrasonic method for determining residual stresses. How these are overcome by electromagnetic techniques.
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(b) Name various electromagnetic stress measurement techniques. What magnetic properties are used for the estimation of residual stresses in these techniques? [8+8] 6. (a) Write a short note on Penetrameters, which is a device used to measure the radiographic sensitivity. (b) Define Image Quality Indicators (IQI), where it will be used?
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7. Explain the mechanism of image formation in Holography.
[8+8] [16]
8. With a neat block diagram discuss the principle and operation of Acoustic Emission method. [16] ?????
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Code No: 07A70607
R07
Set No. 1
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IV B.Tech I Semester Examinations,May 2011 NON DESTRUCTIVE TESTING Metallurgy And Material Technology Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
2. (a) Write short notes on the following: i. Sources of acoustic emission ii. Types of emission
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1. With a neat sketch discuss the design and working procedure of 00 compressional wave probes. [16]
(b) What are different types of acoustic emission sensors? Explain any two sensors with their relative merits and demerits. [8+8]
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3. (a) Discuss the effect of frequency on current penetration.
(b) Define and explain flux density (B), field intensity (H) and permeability.
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(c) What are the characteristics of eddy current method? Write a note on eddy current generators. [4+4+8] 4. Discuss briefly the method of surface preparation in water washable method. [16] 5. Discuss the recording of radiation by Fluorescent screens. List out the types of materials used for these screens and also discuss the advantages and limitations of this process. [16] 6. (a) Describe eddy current instruments used in identification of defects in castings, forgings and weldments.
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(b) Write a short note on the following:
i. Eddy current probes ii. Use of eddy currents in the detection of non-conductive coating.
[8+8]
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7. Discuss the advantages of using fiber optic coupling for the usage of: (a) Photo diodes and
(b) CCD cameras in Dynamic inspection.
[16]
8. Write a short note on the following : (a) Field sensitive probes.
(b) Measurement of metal properties. ?????
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[8+8]
Code No: 07A70607
R07
Set No. 3
1. (a) What are the major objectives of leak testing? (b) What are the two basic types of leaks? Explain them. (d) Explain leak testing by halide torch.
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(c) What are the common errors in leak testing?
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IV B.Tech I Semester Examinations,May 2011 NON DESTRUCTIVE TESTING Metallurgy And Material Technology Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
[4+4+4+4]
2. Discuss the various advantages of penetrant flaw detection methods?
[16]
3. (a) Give the principle and advantages of Magnetic Method.
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(b) What are the limitations of the Magnetic Methods?
4. With a neat sketch explain the Ultrasonic inspection of tubing.
[10+6]
[16]
5. (a) Discuss the fundamental points to be made for Optical Holography.
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(b) Give important applications where dynamic inspection is needed.
[8+8]
6. (a) Draw a neat sketch and explain magnetization curve of a ferromagnetic material indicating the significance of the size/width of the loop. (b) Discuss the applications of electromagnetic testing in NDT.
[8+8]
7. (a) Which NDT method is best suited to determine the wall thickness at the bottom of a steel tank? How it will be done.
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(b) Discuss the Barkhausen noise techniques in detail.
[8+8]
8. With a neat sketch discuss the working procedure of Television - fluoroscopic system with a linear array of detectors. (Group 3). [16]
[16] · 8. With a neat sketch discuss the working procedure of neutron radiography, and also · give applications, advantages and limitations of this method. [16] · *****. 1 ... 5. (a) Give the limitations of x-ray diffraction method and ultrasonic method for · determining residual stresses. How these are overcome by electromagnetic.
(a) What is Radix-64 format? Explain how both PGP and S/MIME perform the · Radix-64 conversion is performed. (b) Describe the five principal services that ...
Farm in Maharashtra, supplied with water from a dug well pumping for 4 h a day, are given below. Determine the required discharge. [16]. 7. AjntuWorld.in ...
... carry equal marks · ***** · 1. List eight major functions of an exhaust nozzle. .... plane. Show the internal layout for swallowed air to reach the engine. Explain.
Enumerate difference between growth and non-growth associated product kinetics. [16] · 7. Write a brief note on biosensors, and describe how they are used for ...
(b) A turbine is to operate under a head of 30 m at 300 r.p.m. The discharge is ... 2. (b) An inward flow reaction turbine has an external diameter of 1 m and its.
(a) Discuss the response of high pass RC circuit for square wave input. (b) A 10Hz square wave is fed to an amplifier. Calculate and sketch the output wave ...
tetrachloride during indirect chlorinate of TiO2 at 1020 0C · [16] · TiO2(g) + 2Cl2(g) = TiCl4(g) + O2. 8. (a) How do the interstitial elements affect mechanical properties of commercially · pure titanium? (b) Why is 0.2 % Pd added to titanium? What
register machine.(Hint: Use FNS). [8+8] · 5. (a) Explain the strassen's matrix multiplication · (b) Derive the time complexity for binary search. [8+8] · 6. (a) Find an ...
Variance · (b) The mean and variance of a binomial distribution are 2 and 8 / 5. Find ... marks were normally distributed with mean 70 and standard deviation 15.
Computer Science And Engineering · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal marks · ***** · 1. (a) Distinguish between a packet-filtering router and a stateful inspection firewall? (b) âOne way to secure
1. With the help of a neat diagram indicating the various geometric elements of a · traffic rotary ... sight distance. What is the need to have SSD and factors.
2. Explain the alpha, delta, theta and beta waves emerging from the brain. [16] · 3. (a) Explain in detail on the isolation amplifiers used in medical field and its need ... Discuss the generation and propagation of action potential in a cell. [16] ·
(a) Steam pressure in a reactor heating coil. (b) Flow rate of reactants into a polymerization tank. (c) Flow of effluent from a waste water treatment holding tank into a river. (d) Flow of cooling water to a distillation condenser. [16] · 6. (a) Def
(a) State Newton's law of viscosity and give any four examples of its applications. (b) An oil of viscosity 8 poise is used for lubrication between a shaft and sleeve.
(a) Off - peak load is zero ... load current and p.f 0.1. capacitors are supplied to make the line power factor ... (b) The annual peak load of substation is 3500kW.
Set No. 2. (a) Construct a systematic (15,2) code using the generator polynomial .... taken. The bit rate is 'rb' and the channel noise has a PSD Gn(f) given by.
Discuss the principle of measuring the hardness of Heat Affected Zone using Jominey · hardenability test? .... (b) What is post weld heat treatment? Describe the ...
(a) State Darcy's law. Discuss the assumptions and limitations. .... 1. (a) State Stoke's law and explain its limitations as applicable to the sedimentation · analysis.
[4+4+4+4] · 4. Add a new method in the base class of Shapes.java that prints a message, but don't .... (d) Dynamic binding and message passing. [4+4+4+4].
Discuss clustering and solubility of liquid mixture. [16] · 3. Define: ... no adsorption at the pore wall and for the case with monolayer adsorption at the · pore wall.
Calculate the depth of indentation produced on a glass surface in ultrasonic ma- · chining by the throwing action of abrasive grain of 100 µm diameter.
