III B.Tech I Semester Supplementary Examinations, November 2006 HEAT TREATMENT TECHNOLOGY (Metallurgy & Material Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain the effect of Austenite grains size on the mechanical properties of steel? [7] [9]
ld .
(b) Discuss the methods for determination of Austenitic grain size?
2. What is critical diameter? Explain the determination of hardenability of a given steel specimen by Grossman’s critical diameter method? [16]
or
3. (a) Explain objectives and uses of surface hardening. Give the classification of surface hardening methods? [8] (b) Discuss any one case hardening method?
[8]
uW
4. What are stainless steels? What are the various types. Discuss the heat treatment of Ferrite stainless steels, martensitic stainless steels and Austinetic stainless steels. [16]
5. How are cast Irons classified on the basis of their manufacture, composition microstructure and appearance of fracture? Explain them. [16] 6. (a) What are ferrito - pearlitic malleable cast irons? Explain.
[6] [5]
(c) What are white heart malleable cast irons? Explain
[5]
nt
(b) What are black heart malleable cast irons? Explain
7. Write short notes on the following with respect the composition, properties; microstructures and applications of [8+8] (a) Cartridge brass
Aj
(b) Admiralty brass
8. (a) Explain the importance of Titanium in the modern industrial scenario?
[6]
(b) Explain the various properties of Titanium and its alloys?
[5]
(c) Explain the various applications of Titanium and its alloys?
NR311803 III B.Tech I Semester Supplementary Examinations ...
(a) Explain objectives and uses of surface hardening. Give the classification of · surface hardening methods? [8] · (b) Discuss any one case hardening method?
(b) The ground water level in a deposit of fine sand is 1.5 m below ground level. Above the water table ... is 21 kN/m3. Calculate the total stress, the neutral stress.
(b) Explain the following particle size measurement techniques. i. Sedimentation ... compaction. [6]. (b) Define Sintering and how is it different from hot pressing.
III B.Tech I Semester Supplementary Examinations, November 2005. AERO SPACE ... (b) Maximum energy theory. [16] ... plain with live examples. (b) Write a ...
4. What are the objectives of wage and salary administration function? [4+6+6] · 5. Write short notes on: · [4x4=16] · (a) Speculative purchasing · (b) Rate contract ...
(a) What are the different problems associated with measurement of low resis- · tances. Explain. (b) How these problems are eliminated by using Kelvins double ...
(b) What is score boarding and its use in RISC? [10] · 5. (a) Explain the salient features of Pentium architecture. [6] · (b) Draw the schematic blocks of Floating ...
Which one you are saving by using statistical time-division multiplexing and prove · it. [16M] · 8. Give two full duplex protocols and explain their operation? [16M].
(a) Pattern plating process. (b) Tenting process. [8+8] · 7. (a) Draw the schematic diagram of magnetic amplifier with a center tapped trans- · former and D.C. ...
A reversible engine operating between a reservoir at 600 K and the ambient at- · mosphere at ... Determine the ratio of energy rejected by both the devices to the.
What is degree of reaction of a gas turbine; how it can be controlled, derive its ... A single stage free vortex turbine is designed for zero degree of reaction at root.
(b) Discuss the help of computers in Cardio vascular evaluation in ICU. [8] · 7. Discribe the use of computers for handicapped persons. Give two examples and.
(a) Explain the pre-anesthetic care and preparation undertaken in a hospital. Why it is important? Explain. [8] · (b) How the patients are monitored during surgery ...
III B.Tech I Semester Supplementary Examinations, November 2005. POWER ELECTRONICS · (Electrical & Electronic Engineering) · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal marks · ***** · 1. (a) Explain the oper
(c) Explain inverted paging method of memory management. [4+4+8] · 4. (a) Explain banker's algorithm for deadlock detection. (b) What are the criteria for a ...
(a) Discuss the path sensitization in a combinational circuit. shown in figure1 · (b) Find the test set to detect A1- SA0 and A1- SA1 faults using Boolean difference.
8. The convolutional encoder is given below Figure1: · Figure 1: ... (b) Construct a code tree for the convolutional encoder for 3-bit input data. [10] · âââââ.
i. plain carbon steel with 4% carbon and 0.8% manganese, ... (a) It is required to design a square key for fixing a gear on a shaft of 30 mm · diameter; to transmit ...
TECHNIQUES OF METAL JOINING · (Metallurgy & Material Technology) · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal ...
Figure 1 shows two views of a tripod bracket. All connections are pinned. Find · the forces in magnitude and nature in the three memebers due to a vertical load ...
(b) Explain the bridge type of thermocouple arrangement and mention its ... 3. The standard resistor arm of a Wheatstone bridge has a range from 0 to 100 ohm.
