Question 1

Once the production performance is proved satisfactory, the machine is now ready to be run in ____ mode.

Accepted Answer

A)  prove-out 
B)  edit 
C)  single-block 
D)  automatic

Question 2

Most commonly used in horizontal spindle machines, a ____ is a tower with multiple vertical working surfaces where workholding devices are mounted.

Accepted Answer

A)  manual collet fixture 
B)  pallet system 
C)  double vise 
D)  tombstone

Question 3

Two M-codes can be used to cause a ____.

Accepted Answer

A)  tool change 
B)  dwell 
C)  rigid tap 
D)  program stop

Question 4

The X- and Y-axes of the Cartesian coordinate system divides the system into four separate regions called ____.

Accepted Answer

A)  dimensions 
B)  modals 
C)  quadrants 
D)  planes

Question 5

____ allows verification of the paths the tool will take by watching a simulated computer model cut the part on a display screen.

Accepted Answer

A)  Dry-run 
B)  Graphic simulation 
C)  Safe offset 
D)  Auto mode

Question 6

____-codes are used to turn on and off miscellaneous (auxiliary) functions.

Accepted Answer

A)  G 
B)  M 
C)  F 
D)  A

Question 7

The ____ is used for the machine's own reference purposes and helps it to keep track of how far each axis can move before it runs out of travel.

Accepted Answer

A)  WCS 
B)  MCS 
C)  MCU 
D)  MDI

Question 8

The coolant command ____ refers to the command for mist coolant.

Accepted Answer

A)  M3 
B)  M7 
C)  N2 
D)  G93

Question 9

The ____ flange was originally developed specifically for CNC use by Caterpillar Inc.

Accepted Answer

A)  BT 
B)  ER 
C)  TG 
D)  CAT

Question 10

A ____ is a tool that is mounted to the turret and, when programmed, can approach the remaining bar material after a part has been cut off.

Accepted Answer

A)  power chuck 
B)  bar feeder 
C)  bar puller 
D)  grooving tool

Question 11

Generically speaking, a ____ refers to running a machine with disabled functions to eliminate the potential for collisions.

Accepted Answer

A)  graphic simulation 
B)  safe offset 
C)  dry run 
D)  single-block

Question 12

The final step in programming, called ____, is to take all of the defined data and allow the software to write a program.

Accepted Answer

A)  prove-up 
B)  pocketing 
C)  uploading 
D)  post-processing

Question 13

Using a combination of a T- and M-word command in a single block is performing a ____.

Accepted Answer

A)  tool height offset 
B)  program stop 
C)  tool change 
D)  clearance change

Question 14

When a machine is programmed ____, all X coordinates are expressed as diameters.

Accepted Answer

A)  linearly 
B)  diametrally 
C)  radially 
D)  algebraically

Question 15

____ coordinates require that positions be identified by defining both an angle and a distance (like a vector in mathematics).

Accepted Answer

A)  Absolute 
B)  Incremental 
C)  Linear 
D)  Polar

Question 16

The drawing type wherein the part shape is defined by a thin outline only, appearing as though the part's image is made of a framework of thin wires is called ____ drawing.

Accepted Answer

A)  surface 
B)  contour 
C)  wireframe 
D)  solid model

Question 17

Once tool measurements have been determined, those tool offset measurements are stored in the machine's ____ offset page.

Accepted Answer

A)  wear 
B)  run 
C)  geometry 
D)  work

Question 18

A G83 is for the ____ drilling cycle and fully retracts the tool from the hole between pecks.

Accepted Answer

A)  rigid tap 
B)  peck 
C)  deep-hole 
D)  fast-peck

Question 19

The configuration of a modern ____ can be compared to a standard vertical knee-type mill.

Accepted Answer

A)  ATC 
B)  VMC 
C)  HMC 
D)  CTT

Question 20

____ can be placed at the beginning of each block of code to serve as a label for each block.

Accepted Answer

A)  Tool-change commands 
B)  Program stop commands 
C)  Safe-start commands 
D)  Sequence numbers

Exam 8: Computer Numerical Control