TOOLINGU: INTRODUCTION TO CNC
MACHINES 201 CORRECT 100%
Which of the following controlled the movements of NC machines? - ANSWER
Electrical logic circuitry
Which of the following is a benefit of CNC machines? - ANSWER Reduced risk of
human error.
Which CNC machine uses force to create bends or holes in sheet metal? - ANSWER
CNC punch press
Where does the machine operator input part programs? - ANSWER MCU
Which type of control system has a motor that has feedback device to verify that the
work was accurately performed? - ANSWER Closed-loop system
What CNC feature provides common operations already programmed into the machine?
- ANSWER canned cycles
Which type of CNC machine rotates a workpiece while moving a cutting tool against it? -
ANSWER CNC lathe
What type of tool movement can create angles, curves, cones, and other shapes? -
ANSWER Contouring
What system uses axes to locate an object in three-dimensional space? - ANSWER
Cartesian coordinate system
Which feedback device conveys position using an electrical current between two points
and is installed in the worktable? - ANSWER Linear scale
On a vertical machining center, a positive X position combined with a negative Z
position indicates movement in which two directions? - ANSWER To the right and down
Which component of an open-loop system generates pulses to drive the movement of
the ballscrew? - ANSWER Stepper motor
Which of the following is a method of inputting information into modern CNC machines?
- ANSWER Ethernet Cable
What is a point-to-point positioning system? A point-to-point positioning system: -
ANSWER Directs the tool to cut at each end position.
MACHINES 201 CORRECT 100%
Which of the following controlled the movements of NC machines? - ANSWER
Electrical logic circuitry
Which of the following is a benefit of CNC machines? - ANSWER Reduced risk of
human error.
Which CNC machine uses force to create bends or holes in sheet metal? - ANSWER
CNC punch press
Where does the machine operator input part programs? - ANSWER MCU
Which type of control system has a motor that has feedback device to verify that the
work was accurately performed? - ANSWER Closed-loop system
What CNC feature provides common operations already programmed into the machine?
- ANSWER canned cycles
Which type of CNC machine rotates a workpiece while moving a cutting tool against it? -
ANSWER CNC lathe
What type of tool movement can create angles, curves, cones, and other shapes? -
ANSWER Contouring
What system uses axes to locate an object in three-dimensional space? - ANSWER
Cartesian coordinate system
Which feedback device conveys position using an electrical current between two points
and is installed in the worktable? - ANSWER Linear scale
On a vertical machining center, a positive X position combined with a negative Z
position indicates movement in which two directions? - ANSWER To the right and down
Which component of an open-loop system generates pulses to drive the movement of
the ballscrew? - ANSWER Stepper motor
Which of the following is a method of inputting information into modern CNC machines?
- ANSWER Ethernet Cable
What is a point-to-point positioning system? A point-to-point positioning system: -
ANSWER Directs the tool to cut at each end position.
