Cad cam mcq for study and practice for the students u can refer this for study PDF

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Cad cam mcq for study u can refer thiz for studying mcq of cad cam...

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CAD, CAM & CAE

MCQ Bank Sub. – CAD, CAM & CAE

Class- T.E. (Mechanical)

Chapter 1: Introduction to CAD/CAM Type -I Select the proper answer 1. 2. 3.

4.

5.

6.

7.

8. 9. 10.

11. 12. 13. 14. 15.

(1 Mark each)

CADIAN is ______________ software. A)CAD B)CAM C)CAE Master cam is _________ software. a) CAD b) CAM c) CAE d) All the above Creation, analysis, modification and optimization is A)CIM B)CAD C) CAM D) CAD/CAM Commercial CAD software package available for kinematics analysis and Virtual Prototyping A) CATIA V5 B) Hypermesh C) ADAMS D) Master Cam AutoDesk Inventor is ________ software A) CAM B) CAE C) CAD D) AutoCAD Pro-MACHINICA is A) Application software B) Operating software C) Networking Software D) None of these ___________ is input device. A)Touch screen B) Plotter C) Computer memory D) LCD Which of the following is not the product of Dassault Systems A) CATIA B) COSMOS C) Solid works D) Solid Edge Tool and fixture design is the task under A)CAD B)CAM C)CAE D) None of these Geometric modeling corresponds to a) Synthesis phase of CAD b) Analysis phase of CAD c) Synthesis and Analysis phase of CAD d) None of the above A joystick is a a) Graphics input device b) Graphics output device c) both a & b d) None of these A joystick is consisting of a a) Pen b) Stick c) Microphone d) None of the above ____________is a display device. A) Floppy B) Printer C) Plotter D) CRT The light pen is an a) Graphics input device b) Graphics output device c) both a & b d) None of these DELMIA software is used for

A B B

C

C

A

A

D B A

A B D A B

CAD, CAM & CAE a) CAD b) CAM c) CAE d) CAPP Which is not a input device in CAD/CAM system? 16. a) Scanner b) Joystick c) Digitizer

Type II) True and False 1.

d) CRT

D

(1 Mark each)

CREO is CAM software. A) True B) False

B

Chapter 2: Computer Graphics Type -I Select the proper answer 1.

2.

(1 Mark each)

Windowing transformation means A) Window to viewport transformation B) Geometric transformation C) Vertices transformation D) None of the above In homogeneous transformation system the inverse of rotation matrix is

A

A

3.

4.

5. 6.

7.

8.

9.

_________ is the type of graphics standards A) PHIGS B) CORE C) GKS D) All of these In the following database structure the database is represented like a tree structure A) Network database B) Relational database C) Object oriented database D) Hierarchical database Is not a CAD data Exchange translator A) IGES B) STEP C) DXE D) GKS Concatenations can be done using a) Viewing coordinate b) Polar coordinate c) Cylindrical coordinate d)Homogeneous coordinate Reflection about X axis is a) Y flips b) X flips c) X-Y flips d) None of the above The space in which the image is displayed are called a) Screen co-ordinate system b) clipping window c) world co-ordinate system d) None of the above The object space in which the application model is defined a) Screen co-ordinate system b) clipping window

D

D D

D

A C

CAD, CAM & CAE c) world co-ordinate system 10.

11.

12. 13. 14.

d) None of the above

GKS stand for a) Graphics kernel system b) Graphics kernel stands c) Generic kernel system d) None of the above Combination of more than one geometric transformation at a time in computer graphics is called as a) Double Transformations b) Multiple transformations c) Concatenation d) None of these In which transformation the object can change its basic dimensions? a) Translation b) Mirror c) Scaling d) Rotation Exchange of CAD data is possible with translators like a) IGES b) PDF c) DOC d) GKS Concatenations can be done using a) Viewing coordinate b) Cylindrical coordinate c) Polar coordinate d) Homogeneous coordinate

A

C

C A D

Type II) True and False 1.

2.

(1 Mark each) Scaling is zoom in and zoom out of an object and any portion of an object between the edges A) True B) False In coordinate transformation, vertices of the object are transformed by shifting Coordinate system A) True B) False

A A

Geometric Modeling Type -I Select the proper answer (1 Mark each) 1. The curve which is tangent at first and last segment of polygon is A) Bezier Curve B) Spline Curve C) Hermite Curve D) None of the above 2.

3. 4.

5. 6.

CSG is a A) Wire frame modeling scheme C) Surface modeling scheme

A

B) Solid modeling scheme D) All the above

B

Number of data point required to define cubic Bezier curve are A) 3 B) 4 C) 2 D) 5

B

The curve which interpolates all data points is A) Bezier Curve B) Spline Curve C) Hermite Curve

C

Following curve interpolates all control points A) Hermite B) Bezier C) b -spline _________________ is solid modelling scheme. A) CSG B) 3D C) 2D

D) None of the above

D) None

A A

CAD, CAM & CAE 7.

8.

9.

10.

11.

12.

13. 14.

15.

In the following geometric modeling which is not 3D modeling? A) Wireframe modeling B) Drafting C) Surface modeling D) Solid Modeling

B

In any curve representation, the shape associated with control points is called as A) Uniform curve B) Rectangle C) Circle D) Control Polygon

D

Computer memory space required for solid model is A) less B) Large C) Moderate

B

Which of the following curve follow the shape of polygon A) Hermit cubic spline B) Bezier curve C) B spine curve C) Input data required for surface model is A) More B) moderate C) less

D) both B) and

D

B

Which of the following curve has first order continuity A) Cubic Spline B) Bezier C) Both A and B

C

Modelling means a) 2D to 3D b) 3D to 2D

D

c) 2 1/ 2D

d) All of the above

Geometric modeling corresponds to a) Synthesis phase of CAD b) Analysis phase of CAD c) Synthesis and analysis phase of CAD d) None of the above Calculation of physical properties such asvolume, surface area, center of gravity, M.I. etc is possible using A) Solid modeling B) Wire frame modeling C) Surface modeling D) All the above

C

A

Type II) Match the Pair

1.

Column – I

Column – II

1) Bezier curve 2)B Spline curve 3) Hermite cubic curve

A) Always cubic regardless of number of data points B) Has local control C) Tangent to first and last segment

Type III) True and False Calculation of physical properties such as volume, surface area, center of gravity, 1. M.I. etc. is possible using solid modelling. A) True B) False

1-C 2-B 3-A

A

2.

4 number of data points are required to define cubic Bezier curve. A) True B) False

A

3.

The curve passes through all points is called Interpolant Curve A) True B) False

A

4.

The order of Bezier curves depend upon number of control points A) True B) False

A

CAD, CAM & CAE Type IV) Multiple answers questions 1. Wire frame modelling has A) required less memory space B) ambiguity of orientation C) required less input data D) possible of detail drawings from model

A, B

Chapter 4: Automation Type -I Select the proper answer (1 Mark each) Which of the following is the module of CIM? 1. A) CAD B) CAM C) Business data functions D) All of these 2. Retrieval type and generative type are the types of A) FMS B) GT C) CAPP D) CNC programming 3.

4.

5.

6.

Which of the following is the rapid prototyping method? A) Stereo lithography B) Selective Laser Sintering C) Fused Deposition Modeling D) All of these Flexible Manufacturing System (FMS) represents a) Group of part family b) Arrangement of all automatic machines c) Conventional machining d) None of these Which of the following is a parts classification and codification system in group technology ? a) CODE b) MICLASS c) OPITZ d) All of these Purchasing of raw material, Tools, Jix and fixture will be done in ___________ activity. a) CAD b) MRP c) CAE d) None of these

D

C

D

B

D

B

Chapter 5: Fundamentals of NC system Type -I Select the proper answer (1 Mark each) 1. FANUC, CNUMERIC,SIEMENS are CNC A) Programming language B) Controllers C) Machines D) None 2.

3.

Example of straight cut NC system is A) Milling machine B) Drilling machine C) Boring machine D) None The coordinate system in which all points are defined with respect to same origin is A) Absolute coordinate system B) Incremental coordinate system C) Both A and B D) None

B

A

A

CAD, CAM & CAE

4.

5.

6.

7.

8.

9.

10. 11.

12. 13. 14.

15.

Lathes, shapers, Planers, boring machines are using A) Multipoint tools B) Single point tools C) Both A and B D) None

B

The machine zero on lathe is generally set on the machine at A) Top right side B) Top left side C) At top mid position D) None of the above

A

Machining centre used for machining heavier work pieces with large metal removal rate is A) VMC B) HMC C) Both A) and B) D) None NC machines used for drilling, boring, reaming, tapping is A) Contouring type B) Straight cut C) Point-to-point D) None of the above DC Servo motors are used as drive motors in A) Open loop control B) Close loop control C) Both A) and B) D) None of the above In case of closed loop control system ___________ is used. a) DC Servo motors b) Stepper motors c) Hydraulic actuator d) None of these A comparator is required in A) Open loop system B) Closed loop system C) Both A) and B)

C

B

A B

In CNC tool the following function may not be automatic A) Feed rate B) Speed rate C) Loading and unloading the work piece D) All of the above FANUC is the name of A) CNC tool B) CNC controller C) CNC job holding device Which one of the following is not CNC controller? A) SINUMERIK B) CINCINNATI C) PEARSON

B

D) FANUC

Following is the basic component of CNC machine. A) Programme of instructions B) MCU C) Machine tool D) All of the above The device used in NC machine tools to read a program on punched tape is called as a) Program scanner b) Program reader c) Punched tape reader d) None of these

Type II) True and False According to ISO machine tool axes definition for CNC machine ‘+Z’ axis is 1. defined when tool goes away from the work piece A) True B) False 2. In incremental co-ordinate system the co-ordinate of all point is defined with respect to same origin A) True B) False

C B C D

C

A

B

CAD, CAM & CAE 3.

Milling operation is an example of Contouring NC. A) True B) False

A

Type III) Match pair 1. 1-C 2- B 3-D 4-A 5-E

Chapter 6: CNC-DNC Technology And Chapter 7: Tooling for CNC machines Type -I Select the proper answer (1 Mark each) 1. In CNC machine job holding and work piece change is done through A) ATC B) MDI C) APC D) All the above 2. 3.

4.

5.

6.

7.

8.

Which type of tool magazines are generally used to handle large number of tools? A) Drum type B) Chain type C) Turret type D) Both A) & B) Multiple pallets are used in CNC machine tools, basically for A) Increasing the cost of machine B) Ease of handing job C) Increase machine utilization D) All of these In numerical control systems, DNC stands for A) Dedicated Numerical Control B) Directional Numerical Control C) Distributed Numerical Control D) None of these Machining Parameter control (Real Time) A) CNC B) FMS C) Adaptive Control D) None of the above NC code generation is not possible using A) Wire frame modeling B) Solid modeling C) Surface modeling D) All the above Several machine tools can be controlled by a central computer in A) NC (Numerical Control) machine tool B) CNC (Computer Numerical Control) machine tool C) DNC (Direct Numerical Control) machine tool D) CCNC (Central-Computer Numerical Control) machine tool In CNC systems, Non-Value-adding time is ______________ a) Reduced considerably b) Increased considerably c) Not affected at all d) Depends totally on operator

C B C

C C

A

C

A

CAD, CAM & CAE 9.

10.

Which type of tool magazines are generally used to handle around 200 tools in CNC machines ? a) Drum type b) Chain type c) Turret type d) Both a) and b) The Tool is held in the CNC milling machine in a) Adapter b) Modular c) Pallets d) Magazines

Type II) True and False 1. Adaptive control is used for controlling non machining time A) True B) False

B

A

B

Chapter 8: Manual Part Programming Type -I Select the proper answer (1 Mark each) G 90 preparatory code is used for 1. A) Absolute Presetting B) Absolute co-ordinate setting C) Metric unit setting D) None of the above Miscellaneous function used for Coolant off is 2. A) M 07 B) M 09 C) M 08 D) M 30 3.

4. 5. 6. 7. 8.

9.

10.

11.

Listing of relative cutter and work piece positions in manual part programming is A) Manuscript B) Programming C) Automation D) None of the above The preparatory function used for circular clockwise interpolation function is A) G03 B) G02 C) G04 D) G01 The miscellaneous function words consist of __________ digits. A) One B) Two C) Three D) Four Canned cycles are generally used for A) Turning B) Drilling C) Threading D) Both A) and C) The preparatory function used for circular clockwise interpolation function is a) G03 b) G02 c) G04 d) G01 FANUC is the name of A) CNC tool B) CNC controller C) CNC job holding device D) Machine tool G03 code in part programming is used for a) Linear movement b) Rapid movement c) Interpolation clockwise d) Interpolation anticlockwise In the Word Address Format (WAF) for part programming, letter F used as a) Preparatory function b) Miscellaneous function c) Feed Rate d) Tool change M98 code is used in part programming a) Spindle off b) Coolant off c) Call Subprogram d) End of program

B

B

A B B B B

B

D

C C

CAD, CAM & CAE Type II) True and False 1. Tab sequential and fixed block formats are more suitable than Word Address Format. A) True B) False

B

Unit 1: Introduction to CAD / CAM/CAE 1. Which one of the following is an input device?  a) Digitizer  b) Printer  c) UPS  d) None of these.

2. In computer graphics, which one of the following represents the image generation technique?  a) CRT  b) Stroke writing  c) Monitor  d) None of these

3. Basic transformation of rotation of an image takes place about  a) Origin  b) Corner of an image  c) Centre of image  d) Top plane

4. The basic geometric entities in computer graphics are called as  a) Rectangle  b) Model  c) Line  d) Graphics primitives

5. In computer graphics GKS stands for  a) General Knowledge System  b) Graphics Kernel System  c) Graphics Knowledge System  d) None of these

6. Which one of the following takes comparatively less memory space to represent objects in geometric modelling?  a) Solid modelling  b) Surface modelling  c) Wire frame modelling  d) None of these

7. The points that govern the shape of the curve in modelling are called as  a) Control points  b) Origins  c) End points  d) Set point

8. Which one of the following is an output device?  a) Scanner  b) Keyboard  c) Drum plotter  d) none of these

9. Which of the following is not a part of CAD hardware?  A) Graphical display terminal  B) Keyboards  C) Computer program  D) Peripheral equipment

10. Which on form the following represents output device in CAD?  A) Tablet pen  B) scanner  C) Computer unit  D) None of these

11. In CAD computers are basically needed for __________  A) Modification of design  B) Optimization of design  C) Creation of design  D) All of these

12. Tablet pen is an _________ device  A) Display device  B) output  C) Input  D) All of these

13. A Touch screen is…..  A) Input device 

B) Output device

 C) Display device

14. In CAD which one of the following represents an output device?  A) Drum plotter  B) Light pen  C) Digitizer  D) Scanner

15. Which one of the following is an input device?  CPU  b) Drum plotter  c) Joystick  d) Monitor

16. The coating on the glass screen of display monitors glows when cathode ray falls on it. The material used for coating is  a) Phosphor  b) Paint  c) Enamel  d) Radium

Unit 2: Computer Graphics and Geometric Modeling 1. In CAD computers are basically needed for ___________  a) Modification of design  b) Optimisation of design  c) Creation of design  d) All of these

2. Keyboard is a ___________ device.  a) Display device  b) Output  c) Input  d) All of these

3.___________ is an image generation technique.  a) Stroke writing  b) Tablet pen  c) Scalar writing  d) None of these

4.___________ is a type of graphics standard.  a) PHIGS  b) CORE  c) GKS  d) All of these

5. A graphics software should be ___________  a) Complete  b) Robust  c) Economic  d) All of these

6. Verification of interference of features of objects in modelling is easily possible in ____  a) Wire frame modelling  b) Surface modelling  c) Solid modelling  d) All of these

7. Which of the following is a type of curve in geometric modelling?  a) Bezier  b) Benazir  c) NURBS  d) Both a and c

8. Which geometric transformation does not change the basic dimensions of the graphics objects transformed?  A) Scaling  B) Transition  C) Rotation  D) Both b) and c)

9. Basic transformation of rotation of an image takes place about  A) Origin  B) Corner of an image  C) Centre  D) Top plane

10. In computer graphics GKS stands for  A) General Knowledge System  B) Graphics Kernel System  C) Graphics Knowledge System  D) None of these

11. Moving an object across the screen parallel to its initial position is called as ___  A) Movement  B) Rotation  C) Translation  D) Shifting 12. Zoom in and zoom out transformation can be obtained by using rotation command.  A) True  B) False

13. In Geometric Transformations, vertices of the object are changed with respect to co-ordinate system.  A) True  B) False

CHAPTER 3 FINITE ELEMENT METHOD 1. Approximation in FEA is essentially by (a) pointwise interpolation

(b) piecewise interpolation

(c) extrapolation

(d) none of these

2. FEM is A) Exact method B) Approximate method C) Both A and B D) none of the above 3. Pre-processing consist of A) Building geometry B) Check the results C) Define material propert...