III B.Tech II Semester Supplimentary Examinations, Apr/May 2009 PRODUCTION TECHNOLOGY-II (Mechanical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) What do you understand by machineabilty? By which parameters it is generally influenced?
i. Mild Steel ii. Aluminium iii. Copper.
ld .
(b) Describe the functions of a coolant in metal cutting operations. Which coolant would you suggest for turning of following metals with HSS tools?
[8+8]
or
2. (a) What are the standard feed drives.
(b) What are the effects of machining parameters on machining time? Calculate the time required facing a workpiece of 78mm diameter. The spindle Speed is 90 rpm and cross feed is 0.3 mm/rev.
uW
(c) State the factors on which speed of material removal depends upon. [4+8+4] 3. (a) Explain the back gear of a lathe with a neat sketch (b) Explain the finger key type feed gear box with a neat sketch.
[8+8]
4. Explain how to and fro motion is imparted to the ram of a shaper. Time taken for cutting stroke is more than that for the return stroke. How is this achieved? [16]
nt
5. Sketch and describe the essential elements of a two lipped twist drill. Explain the functions of all the important elements of a twist drill? [16] 6. Write short notes on the following (a) Gang milling
(b) Rotary table milling machine [6+5+5]
Aj
(c) Slotting attachment.
7. Explain the following vertical spindle surface grinding machines. (a) Double Disc type
(b) Swivel head type (c) Orbital wheel type.
[5+5+6]
8. Write in detail: (a) Principle of honing 1 of 2
NR
Code No: NR320304 (b) Honing machines (c) Methods of honing (d) State the merits and demerits of honing.
NR320304 III B.Tech II Semester Supplimentary Examinations, Apr ...
Sketch and describe the essential elements of a two lipped twist drill. Explain the · functions of all the important elements of a twist drill? [16] · 6. Write short notes ...
the concept of Lubrication in Hot extrusion process ? [8+8]. 6. (a) Sketch and describe the construction and working of hydrostatic extrusion and mention some of ...
(a) Briefly explain about the optical fibre construction details and show a figure for · transmission of light rays and discuss about the refractive index distribution.
a flat plate of chord C = 2m ,and at an angle of attack α = 50 . Analyze the flow · field. Obtain lift, drag and pitching moments from Ackerets theory. Elaborate with.
of transition to be provided? (b) Explain the principles of interlocking. [8+8] · 8. (a) Explain briefly the different factors considered for selection of site of a railway.
(b) A carrier wave of frequency 100 MHz is frequency modulated by sine wave of · amplitude 20 volts and frequency 100 KHz. The frequency sensitivity of the · modulation is 25 KHz per volt. Determine the approximate bandwidth of FM · wave using Carson
(a) What is the difference between chipping and spalling? (b) Explain how tool life curves are established? (c) Discuss working principle of strain gauge ...
Explain the construction of elastic strain gauge? What are the problems associated · with the use of elastic resistance strain gauges how can you find such a ...
of 1 msec synchronizing pulses are applied to the device such that breakdown · voltage is lowered by 50 V at each pulse. The synchronizing pulse frequency.
1. (a) What are the main objectives of using a pattern in sand molding? [7+9] · (b) Explain the ... Explain the principle involved in resistance welding. What are the ...
(a) Give an overview of C++ class structure? (b) Compare the ... What is the difference between the C++ standard library, and the C++ standard · template library ...
250 kN and a minimum value of 100 kN. The properties of the plate material are as follows: · Endurance limit stress = 225 MPa, and yield point stress = 300 MPa.
8. (a) Describe the HyL process of sponge Iron production. [6] · (b) Explain the advantages and disadvantages of HyL process of sponge Iron pro- · duction.
Find the autocorrelation and power spectral density function of X(t). [16] · 2. (a) Define ... Show that v(t) is a combination AM-FM signal. ii. Sketch the phasor ...
distribution within the cylinder. θ denotes a coordinate in a cylindrical coordinate · system. [16] · 8. (a) Two concentric cylindrical metallic shells of radii a & b (i.e. ...
(b) Distinguish between deterministic test pattern generation and probabilistic ... circuit by inserting addition control logic to the following function, obtain the.
(b) Write the principle of gas analysis by thermal conductivity. [8+8] · 5. What are the various designs of manometers used to measure pressure. [16] · 6. A tank of ...
i. Which page will FIFO replace · ii. Which page will LRU replace · iii. Which page will second chance replace · (b) In a fixed-partitioning scheme, what are the ...
1. (a) Explain under what conditions can Fick's first law be used to solve diffusion · problem. (b) In a diffusion anneal, to what level should the initial temperature ...
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.
(b) A hydraulic press has diameter of ram 200 mm and of plunger 40 mm. It is provided with a lever for applying force to the plunger. If the ratio of leverage.
(b) In what way C++ throw specification differs from throw clause in java. [8] · 8. Explain in detail the sequence control in ML. [16] · *****. 1 of 1. AjntuWorld.in.
