CNC Part Programming 1
Authored by Si Cho
Professional Development
University
Used 12+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of NC part programming?
To plan and document the sequence of processing steps to be performed on an NC machine
To determine the specifications of the machine to be used
To identify the plane of cutting
To study relevant component drawings
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between modal and non-modal G codes?
Modal G codes remain active until another G code from the same group is programmed into a block, while non-modal G codes must be programmed into a block when it is required
Modal G codes must be programmed into a block when it is required, while non-modal G codes remain active until another G code from the same group is programmed into a block
Modal G codes are only effective in the block in which it is specified, while non-modal G codes are effective until the end of the program
Modal G codes are effective in the block in which it is specified, while non-modal G codes are only effective until the end of the program
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the G90 command in CNC part programming?
To specify the spindle speed in rpm
To change the way axis motion commands are interpreted
To specify the cutter feed rates in inch per minute
To return to the machine zero position on all axes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a subprogram in CNC part programming?
To cancel canned cycles
To specify the spindle speed in rpm
To define a series of commands which might be repeated several times in a program
To specify the tool to be used
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of CAD/CAM in NC part programming?
To perform NC part programming without human assistance
To simulate the part program off-line to verify its accuracy
To divide the tasks between the programmer and the computer
To manually enter the part geometry data and motion commands directly into the MCU
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the G81 code in CNC part programming?
To specify the spindle speed in rpm
To cancel canned cycles
To return to the machine zero position on all axes
To drill holes in a single drill stroke
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of Mastercam in CNC part programming?
To manually enter the part geometry data and motion commands directly into the MCU
To perform NC part programming without human assistance
To divide the tasks between the programmer and the computer
To input the part geometry, workpiece orientation, material, type of operation, cutting tool, and cutting parameters
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