entrance, university exams previous papers, e-learning,GATE,CAT,MAT,JNTU,BTECH,M.TECH,MCA,MBA,XAT,KCET,JMET,OU,AIEEE,EAMCET,IIT-JEE,BITSAT,BSNL-JTO,NTPC,BHEL,IES,IAS,GMAT Question papeers,materials

Download JNTU M.TECH 2-Semester INDUSTRIAL ROBOTICS July/August-2006 Exam Question Paper

Code No: 53215/MT
M.Tech. II-Semester Examinations, July/August-2006.
INDUSTRIAL ROBOTICS
(Common to Advanced Manufacturing Systems and Cad/Cam and
Design for Manufacturing)

Time: 3 hours             Max. Marks: 60

Answer any FIVE questions
All questions carry equal marks

- – -

1.a) How do you specify a robot? Is robotics automation?  Discuss
the different classification systems of robots.
b) Define the terms ‘Robot’ and ‘Robotics’.  Discuss the role of
robots in engineering.

2.a) What are the different actuators used in the robots?  Describe
them briefly.
b) Discuss the different feedback components used in robots.

3. Explain briefly the two stage control of manipulator using
interpolation of end effectors position method.

4.a) Explain the working of magnet grippers used for robots.
b) Discuss the applications and working principle of the following
sensors.
i) Range sensors ii) Acoustic sensors iii) Tactile sensors.

5.a) Explain the following for smoothing of image:
i) Neighborhood averaging  ii) Image averaging method
b) Discuss the current applications of machine vision system.

6.a) Discuss the textural robot language structure with the help of
block diagram.
b) Discuss the relative merits and demerits of different textual
robot languages.

7. What are the various robot cell layouts?  Describe any two with
the help of neat sketches.

8. What are the various fields in which the robots used?  Discuss
them in detail.

Download JNTU (OR) M.TECH 1-Semester ADVANCED METAL FORMING January / February-2007 Exam Question Paper

Code No: OR-12/AMS
M.Tech. I-Semester Examinations, January / February-2007.
ADVANCED METAL FORMING
(Advanced Manufacturing Systems)
Time: 3 hours                       Max. Marks: 60
Answer any FIVE questions
All questions carry equal marks

- – -
1.a)  Explain the significance of recrystalliztion temperature in metal
working.
b)  Why is hot working some times preferred to cold working inspite of
some disadvantages?

2.a)  Briefly explain the principle of rolling with a neat sketch.
b)  Explain the meaning of draught and elongation as related to hot
rolling.

3.a)  What is meant by ‘flash’ in a forging?  Explain with the help of a
sketch.
b)  Enumerate the differences between
(i) Open die forging and closed die forging
(ii) drop forging and press forging.

4.a)  Draw the cross section of a drawing die labeling various features of
it.
b)  What are the various materials used for making wire drawing dies?
Explain their applications.

5.a)  Explain with simple sketches, the process of forward and
backward extrusion.
b)  Explain how the various variables effect the extrusion pressure.

6.a)  Draw a sketch of a punch and a die set used for punching
operation.  Indicate its various parts.
b)  Explain the following terms:
(i)  Coining    (ii) Embossing  (iii) Trimming

7.a)  Explain the advantages and disadvantages of compound dies over
progressive.
b)  Explain the basic principles to be followed in the strip development
for shearing dies.

8.a)  Describe six point location principle in jig and fixture design.
b)  With the help of neat sketch, explain electromagnetic forming
process.

Download JNTU M.TECH 2-Semester ADVANCES IN CNC MACHINES JULY/AUG-2006 Exam Question Paper

Code No: 53211/MT
M.Tech. II-Semester Examinations, July/August-2006.

ADVANCES IN CNC MACHINES
(Advanced Manufacturing Systems)
Time: 3 hours       Max. Marks: 60

Answer any FIVE questions
All questions carry equal marks

- – -

1.  Explain the following terms:
(a) Incremental and absolute positioning system
(b) Point to point NC sytem
(c) Closed loop and Open loop system

2.a) Explain the various steps involved in the manual part
programming.
b) What is canned cycle?  Explain the different canned cycles.

3.a) Discuss any five motion statements used in APT programming.
b) What is automatic tool path generation?  Discuss importance in
NC programming.

4. Describe the following tooling systems used for CNC machines:
a)  Automatic head changer
b)  Interchangeable tooling system
c)  Quick change tooling system

5.a) Enumerate the advantages and disadvantages of DNC over CNC
system
b) Draw the block diagram of Adaptive control with constraints and
discuss briefly.

6.a) Explain the stereolithography process with the help of neat
schematic diagram.
b) Discuss the important applications of rapid prototyping.

7.a) Discuss the various functions of post processor
b)  Discuss the major variables in the DAPP based post processor.

8.a) What are applications of micro controllers in CNC machines?
Explain.
b) Describe the basic hardware components of PLCs.