CAM stands for what?
A Computer-aided manufacturing
B Computer assembly measurement
C Calculated axis motion
D Central automation model
Answer: A. Computer-aided manufacturing. CAM uses computer systems to plan or control manufacturing operations.
CNC stands for what?
A Central network calibration
B Computer node calculation
C Continuous numeric casting
D Computer numerical control
Answer: D. Computer numerical control. CNC machines execute programmed motion and functions under computer control.
G01 commonly commands what tool motion?
A Linear interpolation
B Spindle stop
C Tool change
D Clockwise arc
Answer: A. Linear interpolation. G01 commands a feed-controlled straight-line move.
M-codes commonly control what machine functions?
A Only geometry dimensions
B Material properties
C Auxiliary functions
D Tool wear models
Answer: C. Auxiliary functions. M-codes control functions such as spindle, coolant and program stop.
A CAM toolpath defines what?
A Tool movement path
B Product color
C Material density
D Machine foundation
Answer: A. Tool movement path. Toolpaths specify cutter motion relative to the workpiece.
A postprocessor converts CAM output into what?
A Machine-specific code
B Neutral CAD solid
C Inspection report
D Assembly drawing
Answer: A. Machine-specific code. A postprocessor formats toolpaths for a specific CNC controller.
CNC X, Y and Z axes describe what?
A Linear machine motion
B Only rotary motion
C Temperature directions
D Tool wear axes
Answer: A. Linear machine motion. Cartesian axes define linear travel directions on a machine.
A work coordinate offset locates what relative to machine?
A Tool tip radius
B Spindle speed
C Coolant nozzle
D Part datum
Answer: D. Part datum. Work offsets relate the part coordinate system to the machine coordinate system.
A tool length offset compensates for what?
A Workpiece hardness
B Tool length variation
C Spindle speed
D Table squareness only
Answer: B. Tool length variation. Tool length offsets establish the tool tip position relative to the spindle reference.
Cutter radius compensation accounts for what?
A Workpiece temperature
B Tool diameter
C Machine backlash
D Spindle torque
Answer: B. Tool diameter. Cutter compensation shifts the path to account for cutter radius.
Cutting feed and speed depend on material and what?
A Tool geometry
B Operator height
C Factory color
D Product price
Answer: A. Tool geometry. Feeds and speeds depend on work material, tool material, geometry and operation.
A machining center commonly combines milling with what feature?
A Manual casting
B Automatic tool change
C Welding torch
D Hydraulic press only
Answer: B. Automatic tool change. Machining centers often use automatic tool changers and multiple operations.
A turning center primarily rotates which component?
A Milling tool only
B Machine table
C Workpiece
D CNC controller
Answer: C. Workpiece. In turning, the workpiece rotates while a cutting tool feeds.
A five-axis machine controls three linear axes and how many rotary axes?
A One rotary axis
B Three rotary axes
C Two rotary axes
D No rotary axes
Answer: C. Two rotary axes. Five-axis machining adds two rotary degrees of freedom to X, Y and Z.
Circular interpolation moves the tool along what path?
A Straight line only
B Random curve
C Arc
D Helix only
Answer: C. Arc. Circular interpolation follows an arc in a selected plane.
Absolute programming references positions from what?
A Previous point
B Fixed origin
C Tool radius
D Part center only
Answer: B. Fixed origin. Absolute coordinates are measured from the active coordinate origin.
Incremental programming references a position from what?
A Machine home only
B Current position
C Tool holder
D Workpiece center always
Answer: B. Current position. Incremental coordinates specify change from the current position.
A canned cycle simplifies repeated what operation?
A Machining sequence
B Material selection
C Design revision
D Tool calibration
Answer: A. Machining sequence. Canned cycles package common sequences such as drilling or tapping.
An automatic tool changer stores and exchanges what?
A Workpiece fixtures only
B CAD files
C Cutting tools
D Machine axes
Answer: C. Cutting tools. The ATC selects tools from a magazine and loads them into the spindle.
Workholding fixes the workpiece relative to what?
A Tool library
B Coolant tank
C CNC program header
D Machine coordinate frame
Answer: D. Machine coordinate frame. Fixtures secure and locate the workpiece during machining.
Toolpath simulation can identify what before machining?
A Material composition
B Supplier lead time
C Drawing revision only
D Collisions
Answer: D. Collisions. Simulation checks movement for collisions and process problems.
DNC can transmit programs from computer to what?
A Surface plate
B Tool grinder only
C Casting mold
D CNC machine
Answer: D. CNC machine. Distributed numerical control communicates programs and data to CNC equipment.
Adaptive machining control changes cutting conditions using what?
A Static drawing only
B Fixed schedule only
C Product label
D Sensor feedback
Answer: D. Sensor feedback. Adaptive control responds to measured load or process conditions.
CAM for additive manufacturing can generate what?
A Turning chips
B Gear ratios
C Layer toolpaths
D Weld defects
Answer: C. Layer toolpaths. Additive CAM prepares build paths and layer instructions.
A touch probe can locate part surfaces and what?
A Material hardness
B Work offsets
C Tool coating
D Spindle torque
Answer: B. Work offsets. Probing locates datums, measures features and can update work offsets.