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MCQ Questions and Answers on CAD, CAM, and Automation

Q.  
_______ command gives an array of object in 3D modeling.


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Answer :   Option:- C

Explanation :

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Q.  
A cylinder can be created by drawing a rectangular shape using the _______ tool.


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Answer :   Option:- A

Explanation :

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Q.  
CAD/CAM is the relationship between


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Answer :   Option:- C

Explanation :

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Q.  
Which two disciplines are tied by a common database?


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Answer :   Option:- B

Explanation :

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Q.  
The term that is used for geometric modelling like solid modelling, wire frame modelling and drafting is known as


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Answer :   Option:- A

Explanation :

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Q.  
The software that is used to control the computer’s work flow, organize its data and perform housekeeping functions is known as


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Answer :   Option:- A

Explanation :

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Q.  
During the execution of a CNC part program block N020 G02 X45.0 Y25.0 R5.0 the type of tool motion will be


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Answer :   Option:- A

Explanation :

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Q.  
In an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) along a circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion are


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Answer :   Option:- B

Explanation :

We want circular motion as mention in question,
G02 - for Circular clockwise circular interpolation.


Q.  
The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following
NC tool path command performs the above mentioned operation?


Discuss

Answer :   Option:- A

Explanation :

In CNC machining, the G02 code is used for clockwise circular interpolation, which moves the tool along a circular arc. In the given example, the tool moves from the coordinates (5, 5) to (10, 10), with the center of the arc at (10, 5). The R5 parameter indicates the radius of the arc. Correctly using G02 ensures the tool follows the desired arc path, which is important for operations that require precision, such as in complex shapes or curves.


Q.  
Match the following:
P. M05 1. Absolute coordinate system
Q. G01 2. Dwell
R. G04 3. Spindle stop
S. G09 4. Linear interpolation


Discuss

Answer :   Option:- C

Explanation :

In CNC programming, each command has a specific function. M05 stops the spindle, G01 is used for linear interpolation, where the tool moves in a straight line to a specified position, G04 is used for dwell, or a pause in the movement, and G09 is for precise stop or interpolation. Understanding these commands is essential for controlling CNC machines efficiently and ensuring accurate production of parts.