Winter 2012 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY 

DIPLOMA ENGG. – DLM - SEMESTER– VI • EXAMINATION – WINTER 2012 

Subject code: 361901    Date: 01-01-2013 

Subject Name: CAD/CAM 

Time: 02:30 pm – 05:00 pm      Total Marks: 70 

Instructions:
1.  Attempt all questions.
2.  Make suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  English version is considered to be Authentic.

*****************

Q.1  (a)  Write definition of CAD and CAM. List applicationsof CAD/CAM.  07

(b)  List different motion control system of CNC machine and explain any one.  07

Q.2   (a)  Prepare CNC part program using ISO codes of a component given in Fig.-1. 07

(b)  List the types and features of graphic terminals.Explain any one in brief.  07

OR

(b)  Write concept and application of animation.  07

Q.3   (a)  Write complete procedure to draw 3D model for a given component in Fig.-2   07

(b)  Write features ofPro-Engineer.  07

OR

Q.3  (a)  Write complete procedure to draw 3D model for a given component in Fig.-3.   07

(b)  Write features of Ideas software.  07

Q.4   (a)  Explain any Five G Codes and five M Codes in detail.  07

(b)  Explain following auto CAD commands : (1)UCS (2) REVSURF (3) RULESURF (4) TABSURF   07
 

OR

Q. 4  (a)  Explain concept and importance of canned cycle.  07

(b)  Differentiate : (1)Open loop & Closed loop system. (2) Absolute & Incremental dimensioning   07

Q.5   (a)  Give classification of Robots and list types of robots.  07

(b)  Write Short Note: (1) FMS (2) CIM   07

OR 

Q.5  (a)  State the principal functions and applications of DNC.  07

(b)  Write Short Note: (1) CAD/CAM Integration. (2) Classification of ATC.   07

*************

*****************

Summer 2013 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY 

Diploma Engineering - SEMESTER–VI • EXAMINATION – SUMMER 2013

Subject Code: 361901  Date: 09/05/2013 

Subject Name: Computer Aided Design and 

Computer Aided Manufacturing (CAD / CAM)

Time: 10:30 am TO 01:00 pm  Total Marks: 70 

Instructions:
1.  Attempt all questions.
2.  Make suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  English version is considered to be Authentic

************

Q.1  (a)  Define CAD. State any five functional areas of CAD.  07

(b)  Explain CAD workstation with block diagram and enlist types of input and output devices used in it.   07

Q.2   (a)  State different types of graphical terminals. Compare its features.  07

(b)  State and compare various types of geometric modelling.  07

OR

(b)  Enlist types of CAD software used for solid modelling and write features of any one.  07

Q.3   (a)  Write down AUTOCAD commands to draw 3D model for a given component in Fig.1.  07

(b)  Explain following AutoCAD commands with suitable example (i)  TABSURF (ii) 3D ARRAY (iii) SLICE (iv) UCS   07

OR 

Q.3  (a)  Write down AUTOCAD commands to draw 3D model for a given component in Fig.2.  07

(b)  Explain following G Codes and M Codes in brief.(i)  G01 (ii) G02 (iii) G04 (iv) G41 (v) M03 (vi) M06 (vii) M30   07

Q.4   (a)  Write short notes with sketch i) Ball screw (ii) Working of ATC   07

(b)  Prepare CNC part program for turning using ISO codes of a component given in figure 3   07

  OR

Q. 4  (a) Prepare CNC part program for milling using ISO codes of a component given   in figure 4.  07

(b)  Classify the CNC Machine Tool in brief.  07

Q.5   (a)  Write short note on DNC with block diagram.  07

(b)  Write short note on (i) canned cycle (ii) subroutines(sub programme)  07

OR  

Q.5  (a)  Write short notes on i) FMS (ii) Tool compensation with suitable example   07

(b)  Define robotics. Give classification of robot and write main elements of robots.   07

************** 

*****************

Summer 2014 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY

Diploma Engineering - SEMESTER–VI • EXAMINATION – SUMMER • 2014

Subject Code: 361901  Date: 22-05-2014 

Subject Name: Computer Aided design and

Computer aided Manufacturing

Time: 10:30 am - 01:00 pm  Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  English version is considered to be Authentic.

**************

Q.1  (a)  What is need and salient feature of CAD/CAM?  07

(b)  What is meant by Graphic terminal? Differentiate between DVST terminal and Raster Scan terminals.  07

Q.2  (a)  Explain parametric, non-parametric and feature based modeling  07

(b)  Define transformation. Explain 2D translation with suitable example.  07

OR

(b)  A quadrilateral ABCD  has following coordinates A (1,1) ,B(6,1), C(10,5), D(5,5) . Calculate and show the new coordinates of the quadrilateral if it is translated by 10 units in x direction and 5 units in y direction.  07

Q.3  (a)  Write down the AUTOCAD command in sequences for the Figure 1  07

(b)  Discuss following AUTOCAD commands. (1) V port (2) 3D orbit (3) Rule Surf (4) Rev Surf   07

OR 

Q.3  (a)  Write complete procedure to draw 3D model for a given component in Fig. 2  07

(b)  List various solid modeling software used in CAD and explain any one.    07

Q.4  (a)  Differentiate open loop and closed loop in context with CNC machine.  07

(b)  Prepare CNC part programming for turning using ISO codes of a component given in Figure 3.  07

OR 

Q. 4  (a)  Explain APT language used in computer assisted part programming.  07

(b)  Prepare CNC part programming for milling using ISO codes of a component given in Figure 4  07

Q.5  (a)  State the principal functions and application of DNC.  07

(b)  Explain feature of FMS and list the main component of FMS.  07

OR 

Q.5  (a)  Give classification of robots and list type of robots.  07

(b)  Explain area covered in CIM using block diagram.  07

*************

**************

Winter 2014 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY

Diploma Engineering - SEMESTER–VI • EXAMINATION – WINTER • 2014

Subject Code: 361901  Date: 26-11-2014 

Subject Name: Computer Aided design and

Computer aided Manufacturing

Time: 02:30 pm - 05:00 pm  Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  English version is considered to be Authentic.

***************

Q.1  (a)  Explain CAD Design steps and reasons of its implementations.  07

(b)Explain CAD work station.  07

Q.2  (a)  What is CAD Standard and Explain in detail.  07

(b)Explain 2D transformation in detail  and 3D transformation in brief.  07

OR

(b)  Triangle having end points A(0,0) B(4,4),C(2,6) obtain new coordinates after Scaling in X axis 2 Units and in Y axis 1.5 Units. State diagram on graph paper.  07

Q.3  (a)  State Solid modeling methods and its application.  07

(b)  State complete Cad procedure for development Cad model of fig: 2 (use Auto-Cad)  07

OR 

Q.3  (a)   07
1 parametric and Non parametric modeling, explain in detail.
2 List Advance CAD/CAM softwares and explain anyone.

(b)  State procedure to develop 3D model of fig. 1 (use pro-e/solid edge modeling software )  07

Q.4  (a)  Explain following modeling Commands.  07
(1) Revolving surface (2) Edge surface (3) 3D Array (4) Substract

(b)  Explain Assembly modeling methods in ProE/Solidedge with one example.  07

OR 

Q. 4  (a)  Explain types and Classification of CNC machine tools. 07

(b)  Explain ATC and APC in details.  07

Q.5  (a)  Write CNC part program for fig. 3Use ISO format and state your Assumptions.  07

(b)  Explain Adoptive control and robotics.  07

OR 

Q.5  (a)  Write CNC part programe for fig. 4 Use ISO format and state your assumptions.  07

(b)  Explain DNC and FMS.  07

                                                                      ***************

Summer 2015 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY

DIPLOMA ENGINEERING – SEMESTER–VI• EXAMINATION – SUMMER 2015

Subject Code:3361901  Date:30-04 - 2015

Subject Name: Computer Aided Manufacturing (CAM)

Time: 10:30am to 1:00pm              Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authentic.

***************

Q.1 Answer any seven out of ten..   14

1.Write any two differences between NC and CNC machine.

2.  Define CAM and write any two applications of CAM.

3.  Draw the block diagram showing components for NC machine.

4.Draw the block diagram of open loop control system.

5.  Write any two advantages and disadvantages of CIM system.

6.  Write full form of IGES, PHIGS, MCU, and SLA.

7.  Explain the ISO part programming code “M03” with suitable example. 

8.  Draw the block diagram of CIM system.

9.  Define subroutine and write its two features.

10.  Define the robotics terminology “ Pitch” & “Yaw”.

Q.2  (a)  Write any six main technical specifications for the selection of CNC machine.  03

OR

(a)  Explain “DNC” system with block diagram in brief.  03

(b)  Write any three advantages and disadvantages of CNC machine tool.  03

OR

(b)  Explain “point to point” motion control system used in CNC machine with line diagram.  03

(c)  Draw the neat sketch of ATC & write its four advantages.  04

OR

(c)  Draw the neat sketch of APC& explain in brief.  04

(d)  Draw the neat sketch of “re-circulating screw & nut“ & explain in brief.  04

OR

(d)  Describe qualified tool used in CNC machine with neat sketch.  04

Q.3  (a)  Define HMC, VMC & UMC in reference with CNC machine.  03

OR

(a)  Draw and explain close loop control system used in CNC machine.  03

(b)  Draw and explain any one work holding device used in CNC machining center.  03

OR

(b)  Draw and explain any one work holding device used in CNC turning  center. 03

(c)  Write name of two types of tool holding devices used in CNC machining center & explain any one with neat sketch.  04

(d)  Explain axis nomenclature used in CNC turning center with neat sketch.  04

OR

(d)  Explain axis nomenclature used in CNC machining center with neat sketch.  04

Q.4  (a)  Define adoptive control system & write its four applications.  03

OR

(a)  Define FMS. Draw its block diagram & write its two applications.  03

(b)  Define robot, draw the sketch showing key components of robot & write two applications of robot.  04

OR

(b)  Define rapid prototyping and write its four techniques and two applications.  04

(c)  Prepare the CNC part program using G and M codes with ISO format for the given fig-1of milling contour with circular interpolation.  07

Q.5  (a)  Prepare the CNC turning part program using G and M codes with ISO format for the given Fig-2 with circular interpolation.  07

(b)  Write a CNC subroutine program to milled three(3) square pocket of  20X20mm for the given squareplatefigure-3.   04

(c)  Define and explain Modal and non-modal command used in CNC.  03

***************

Add caption

***************

Winter 2015 Computer Aided Manufacturing question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY

DIPLOMA ENGINEERING – SEMESTER –VI • EXAMINATION – WINTER 2015

Subject Code: 3361901    Date:  19/12/2015

Subject Name: Computer Aided Manufacturing

Time: 02:30 PM TO 05:00 PM    Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authentic

***************

Q.1 Answer any seven out of ten. 14

1.  Write meaning of G02 and G03 codes in CNC part programming.

2.  Write meaning of G41 and G42 codes in CNC part programming.

3.  Define Work zero and Machine zero.

4.  Define Robotics and list main parts of robots.

5.  Write two main differences between NC and CNC machines.

6.  Write four main advantages of CNC machines

7.  List name of different feedback devices used in CNC machines.

8.  List name of different motion control system of CNC machines.

9.What are functions of Miscellaneous code (M codes) M03 and M06?

10.  Differentiate between incremental and absolute dimensioning.

Q.2  (a)  Explain axis designation in lathe machine and vertical milling machine.  03

OR

(a)  Explain axis designation in Drilling machine and Planner machine.  03

(b)  Write part programme for drilling holes using canned cycle as shown in figure-3.   03

OR

(b)  Explain working of Automatic Palate changer (APC) with neat sketch.  03

(c)  Write short note on Tool Radius Compensation.  04

OR

(c)  Differentiate between open loop control and closed loop control system in CNC machines  04

(d)  Explain canned cycles for drilling with examples.  04

OR

(d)  Explain canned cycles for boring with examples.  04

Q.3  (a)  List Industrial applications of robots.  03

OR

(a)  Classify Robots and Explain any one type in brief.  03

(b)  Explain working of Servo motor.  03

OR

(b)  List potential benefits of CIM.  03

(c)  Define Rapid proto typing and list various Rapid proto typing process.  04

OR

(c)  Explain an adaptive control with diagram  04

(d)  Write area covered in CIM using block diagram.  04

OR

(d)  Explain main elements and their functions of FMS  04

Q.4  (a)  Explain macros in part programming with example.  03

 OR

(a)  Explain subroutine  in part programming with example  03

(b)  Write short note on DNC with neat sketch.  04

OR

(b)  Explain in brief, main four constructional features of CNC machines  04

(c)  Prepare CNC part programme for turning using ISO code of a component given in figure 1.    07

Q.5  (a)  Prepare CNC part programme for milling using ISO code of a component given in figure 2.    04

(b)  Classify CNC machines and briefly explain any one type.  04

(c)  Explain construction and working of Re circulating Ball screw  03

(d)  Explain working of Automatic tool changer(ATC) with neat sketch  03

***************

***************

Summer-2016 Computer Aided Manufacturing question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSITY

DIPLOMA ENGINEERING – SEMESTER – VI• EXAMINATION – SUMMER 2016

Subject Code: 3361901  Date: 07/05/2016

Subject Name: Computer Aided Manufacturing

Time: 10:30 AM to 01:00 PM  Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authenti

***************

Q.1 Answer any seven out of ten. 14

1.  What is CAM ? Give two advantages of CAM.

2.  Draw block diagram of NC and CNC.

3.  State any four applications of CAM.

4.  Draw CNC axis and nomenclature.

5.  Which types of CNC are used in Mass production?

6.  State various tool positions on CNC machine for Part programming.

7.  Give basic 4 codes with meaning used in CNC Part programming for manufacturing.

8.  Why M codes used in CNC Part programming?

9.  State types of recent trend used in CAM.

10.  Define rapid prototyping and its applications.

Q.2  (a)  State the selection criteria for CNC machine.  03

OR

(a)  Draw block diagram of DNC and explain in brief.  03

(b)  Explain spindle drives and axes drive used in CNC machine.  03

OR

(b)  Explain APC for CNC machine.  03

(c)  State types and classification of CNC machine, explain any one.  04

OR

(c)  Write short note on recirculating ball screw.  04

(d)  Explain feedback devices used in CAM.  04

OR

(d)  What is ATC ? Explain ATC.  04

Q.3  (a)  Explain interfacing standards for CAD/CAM.  03

OR

(a)  Define Qualified tools and state its need and advantages.  03

(b)  Define Adoptive control and explain.  03

OR

(b)  Define FMS and explain.  03

(c)  Explain part programming format and structure of part programming.  04

OR

(c)  Explain any four G and M code with example commonly used in CAM.  04

Q.4  (a)  Write milling part program for fig :1 in ISO format  07

OR

(a)  Write milling part program for fig :2 in ISO format  07

(b)  Write short note on Canned cycle.03

OR

(b)  Write short note on sub routine cycle.  03

(c)  Write part program for turning for fig :3 in ISO format  06

Q.5  (a)  Explain CNC machining centre.  03

(b)  Explain CNC turning centre.  03

(c)  Write short note on CIM.  03

(d)  Write short note on Robotics.  03

***************

***************

Winter- 2016 Computer Aided Manufacturing Question Paper

***************

GUJARAT TECHNOLOGICAL UNIVERSIT

Diploma Engineering - SEMESTER–VIII • EXAMINATION – WINTER • 2016

Subject Code: 3361901  Date: 20-10-2016

Subject Name: Computer Aided Manufacturin

Time: 10:30 am - 01:00 pm  Total Marks: 70

Instructions:

1.  Attempt all questions.

2.  Make Suitable assumptions wherever necessary

3.  Figures to the right indicate full marks.

4.  Use of programmable & Communication aids are strictly prohibited.

5.  Use of only simple calculator is permitted in Mathematics.

6.  English version is authentic.

***************

Q.1  Answer any seven out of ten.  14

1.  Define CAM and its scope.

2.  Write four selection criteria for CNC M/C.

3.  What is spindle drive and axis drives on CNC M/C?

4.  What are qualified tools in CNC M/C?

5.  State tool holder types and its application.

6.  Definition of various positions like machine zero, home position, work piece zero

7.  State any four G codes with its function.

8.  Types of part programming formats used in CAM

9.  What is tool radius compensation?

10.  State interfacing standards of CAD/CAM

Q.2  (a)  State and explain advantages and limitations of CNC M/C. 03

OR

(a)  State difference between CNC and DNC.  03

(b)  Explain CNC axes and motions nomenclature.    03

OR

(b)  Explain feedback devices (transducers, encoders) for CNC M/C.  03

(c)  Write short notes on Re-circulating ball screw.  04

OR

(c)  State and explain CNC machines Types, classification and working.   04

(d)  Explain CNC turning centres.  04

OR

(d)  Explain CNC machining centres.  04

Q.3  (a)  Write short notes on canned cycles.  03

OR

(a)  Write shore notes on APC.  03

(b)  Explain importance of Do-LOOP used in CNC part programming.  03

OR

(b)  Explain CNC part programming used for CAM.   03

(c)  Write CNC part program for turning Fig: 1 using ISO format.  08

OR

(c)  Write CNC part program for milling   Fig: 2 using ISO format.  08

Q.4  (a)  Write short notes on Macro used for part programming.  03

OR

(a)  Explain any 3 M codes offenly used in CNC part programming with example.  03

(b)  Explain need and importance of various compensations:  04

i. Tool length compensation.ii. Pitch error compensation.

iii. Tool radius compensation.  iv. Tool offset.

 OR

(b)  Explain Flexible Manufacturing System.  04

(c)  Write shore notes on subroutines write subroutine part program for fg :3.  07

Q.5  (a)  Write short notes on ATC.  04

(b)  Explain Adoptive controls used in CAM.  04

(c)  Write shore notes on CIM.  03

(d)  Write short notes on robotics.  03

***************

***************

Computer Aided Manufacturing previous year question paper | 3361901|

What advantage can you take with gtu previos Exam Papers?

Exams appear to be a mystery to most students but some may find it exciting by looking at it as a competition. They pray about having a perfect dream about the coming test so that they already know it but that is not a reality truth is if you wants to succeed you have to prepare well for the exams.

Studying past papers are a valuable part of exam preparation and help keep revision focused on important themes whilst practicing exam style questions.

One of the simplest ways to prepare for the exams is to manage your study according to a well-defined time table and allot time to every subject. It is a good practice to compare the questions of the examiners because it will give a better idea about what the examiner is looking for in the exam.

 Technique for Studying gtu previos Exam Papers

Most of the universities keep copies of the past exams in their libraries or they can also be accessed from the university websites available on the internet. A good practice is to take past five year papers and, instead of going through the past exam paper year by year, find questions about the same topic and prepare that topic really well. This technique can be very helpful for preparing the exam.

Advantages of Studying gtu previos Exam Papers

One of the most important part of exam preparation is going through past exams. It is important  to revise your entire syllabus quickly. They can provide you the general idea of the upcoming paper and you could easily guess the important topics of a particular subject. Past exam papers give you the idea of number of questions and the available choices. It is therefore necessary for students to give some time to go through the past paper while revising a subject.

Past exam papers are one of the most helpful tools available to prepare for both internal and external examinations as they provides students with practical insight into how the forthcoming exam paper is likely to look and the key themes or subject areas most likely to be covered. Before starting revision for a subject it is always worth taking time to seek out past papers.