Code No: 220351 II B.Tech. II Semester Supplementary Examinations, November-2003
.in
MATERIAL SCIENCE (Common to Mechanical Engineering, Production Engineering and Mechatronics) Time: 3 hours Max. Marks: 70 Answer any Five questions All question carry equal marks --1.a) Discuss various types of binding forces that exist in crystalline structures. b) Show that the packing fraction in FCC lattice is 0.74. c) Describe the characteristics of metallic bond. Define Burger’s vector and illustrate it on the sketch of edge dislocations. Draw neat sketches and illustrate edge and screw dislocations. Explain the significance of dislocations in the plastic deformation of metals.
3.a)
Describe the mechanism involved in slip, twinning and fracture with the help of neat sketches in single crystals. Compare and contrast cold working and hot working.
4.a) b)
Describe creep phenomena. How does the temperature affect the creep? How do you improve the creep resistance. Explain the salient features of fatigue fracture. Draw S-N curve for steel and Aluminum. Explain the effect of metallurgical variables on fatigue.
uW
b)
or ld
2.a) b) c)
Explain the effect of magnetic field on super conductors. Give an account of Type I and Type II super conductors. Explain Anti Ferromagnetism and ferrimagnetism.
6.a) b)
Discuss the mechanical and electrical properties of ceramic materials. What is a composite material? List out their advantages over pure metals. Explain fibre reinforced materials and their structures.
nt
5.a) b) c)
7.a)
Aj
b) c)
What is non-destructive testing of materials? What are the aims of NDT? List out various NDT methods. Explain in detail the X-ray radiography method. Discuss the advantages and limitations of magnetic particle method of NDT.
8.
Write short notes on THREE of the following: (a) Hysteresis loop (b) Ultrasonic testing. (c) Co-ordiration number (d) FRENKEL defects. -*-*-*-
220351 II B.Tech. II Semester Supplementary ... Accounts
7.a) What is non-destructive testing of materials? What are the aims of NDT? List out · various NDT methods. b) Explain in detail the X-ray radiography method.
(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 ...
8. (a) Enumerate various mechanical and diffusion properties of cartilage with ex- · amples? [8] · (b) Write briefly about âlubricationâ of joints? [8] · *****. 1 of 1.
7. a) How will you prepare Thiophene? What are its chief uses? b) What will happen when Quinoline and Isoquinoline are treated with · alkaline KMnO4 solution ...
Make a survey of petroleum reserves in the world and compare them with the · reserves available in India. Discuss the various exploration methods for finding.
(a) What is congruent melting alloy? Does eutectic alloy come under the above class? (b) Explain miscibility gap. (c) Discuss the coordinates of a phase diagram ...
1.a) Draw a neat sketch of optical microscope and the trace of rays through the optical · system from the ... c) Explain the term resolving power of a microscope.
Code No: 320554. III-B.Tech. II-Semester Supplementary Examinations, April/May-2004 · LANGUAGE PROCESSORS · (Common to Computer Science and Engineering and Computer Science and · Information Technology) · Time: 3 Hours · Max. Marks: 70 · Answer any F
represented by three entity sets like AIRPORT,AIRPLANE and FLIGHT. Assume suitable attributes for each entity. 3.a) Differentiate between BCNF and 3NF.
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. - - -.
(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 ...
(c) Open spaces in buildings. [6+5+5] ... (c) Independent and semi-detached houses. [5+5+6]. 1 of 3 ... (c) V.P. President Chambers with attached toilet. (d) V.P. ...
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.
a(m,n) = a(m-1,a(m,n-1)) if m!=0,n!=0 · (b) Determine what does ... [8+8] · 4. If an array holding a queue is not considered circular, the general method suggests.
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.
