OR Code No.: 220351 II B.Tech II-Semester Examinations April-May 2003 MATERIAL SCIENCES (common to Mechanical Engineering, Production Engineering and Mechatronics)
2.a) b)
Define dislocation. Explain types of dislocations with neat sketches. Discuss the effect of grain size on yield strength of polycrystalline materials. Explain slip process in mechanical deformation.
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1.a) b)
Max. Marks: 70 Answer any five questions All questions carry equal marks --Cite the several crystal systems and their distinguishing characteristics. Explain the differences between the nature of ionic and covalent bonds giving suitable examples of the materials in each case.
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Time: 3 hours
Differential between cold working and hot working material hardening. What is fatigue of materials? Explain the testing of metals for fatigue. Discuss the mechanism of creep in deformation of metals.
4.a)
With the help of band theory explain the conducting behavior of conductors, semi-conductors and insulators. Draw the stress-strain curve, label the salient feature and explain its behavior.
b) 5.a) b) 6.a)
What is super conductivity? Describe the effect of Magnetic field on a super conductor. Explain Meissner effect? Distinguish between Dia, Para and Ferro magnetizer. How does a cermet differ from metals and ceramics regarding its usage. What are its limitations? Classify composite materials mentioning properties and applications of each type of composite material.
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3.a) b) c)
Explain in detail the following: a) Ultrasonic flaw detection. b) Industrial radiographic technique. c) Gamma ray radiographic technique.
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8.
Write short notes on any Three of the following. a) Debye’s Theory of specific heats. b) Twinning. c) Electrical properties of materials. d) Structure of metals. &&&&&
Code No.: 220351 II B.Tech II-Semester Examinations April-May 2003 ...
c) Discuss the mechanism of creep in deformation of metals. 4.a) With the help of band theory explain the conducting behavior of conductors, · semi-conductors ...
6.a) Explain flattening and factoring with examples. b) Explain the need for functional verification after RTL description and after · synthesis. 7.a) What are the ...
Discuss about the Hazards of Heat Transfer Operation. 4. Discuss about : · a) Float Switches · b) Bubbler type Level Gauges. 5. Write about industrial safety ...
LASER AND FIBER OPTICS IN MEDICINE · ( Bio-medical Engineering ) ... b) Write a note on medical surveillance. 6.a) What are the advance reactions to laser ...
Code No:320455. III-B.Tech. II Semester Examinations April, 2003 · MICROWAVE ENGINEERING · (Electronics and Communication Engineering) · Time: 3 Hours · Max. Marks: 70 · Answer any FIVE questions · All questions carry equal marks · --- · 1. A two-cav
SATELLITE COMMUNICATIONS · ( Electronics and Communication Engineering ) ... b) Draw the block diagram of a satellite communication and explain each ...
b) The annual input to a sub-transmission system is 1,75,200 MW hrs. On the peak- · load day of the year, the maximum demand is 50 MW and the energy input ...
b) By proving Parseval's theorem show that Fourier transform is an isometry. 4.a) Write three properties of auto correlation function. b) Let r(t) represent a ramp ...
II-B.Tech. II Semester Examinations April/May, 2003 · MECHANICS OF FLUIDS AND HYDRAULIC MACHINES · (common to Electronics and ... isothermal conditions if the pressure and density at sea level at this temperature · are 101.325KN/m · 2 · and 1.208Kg/m
3.a) The expression giving work done in gas following polytropic compression can · not be used for ... discharge air to run a frictionless turbine. Atmospheric ...
108 kN at a distance of 2m from C. Find the support moments and support reactions. ... b) Three wires AD, BD and CD having the same cross sectional area and of same ... A moving load of 50kN/m and, 4m long, crosses a girder of 16m span.
a) Follower moves outwards through 40mm during 60° of cam rotation. ... Draw the profile of the cam when the axis of the follower is offset 20mm towards.
examples. 3.a) Explain the PROG features of lisp. b) What is scope and extent? Explain the Dynamic Scoping rules. 4.a) Explain the different methods of parameter passing mechanism. b) What is âtype checkingâ? Discuss the various types of type che
SIMULA. b) What is concurrency ? Briefly explain the concurrency features in ADA. 8. Briefly explain the following : · (a) · Basics of LISP · (b) · Type equivalence.
b) What are the various losses that occur in a single phase transformer? c) In a 100KVA, 2000/200V, 50Hz transformer, the full load copper losses and iron · losses are 1500 watts and 1000 watts respectively. Determine the load for which · efficiency
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.
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. - - -.
Code No: 220155. II-B.Tech. II-Semester Supplementary Examinations, April/May-2004 · PROBABILITY AND STATISTICS · (Common to Civil Engineering, Mechanical Engineering, Production ... b) If X is normally distributed with mean 8 and S.D 4, find ... 3.a
b) Explain the concept of Tunnel diode in detail. Draw and explain its ... voltage for a P channel JFET with a=2Ã10-4 cm and channel resistively · Ï=10ohm-cm.
State the second law of thermodynamics and explain how it is applied for · development of heat engine. 6. A reversible heat engine absorbs 252 kcal at 260°C, ...
b) Describe MOTT & WHEELER method of test Coke. 2.a) Describe a method for the manufacture of producer gas. b) Mention important properties and uses of ...
1.a) Explain the star-delta transformation. b) Using mesh analysis, find the currents in all the branches of the network given · below. 2.a) Explain Lenz's law and ...
