Question 1

____ cycles are canned cycles that are used to automate stock removal for turning operations.

Accepted Answer

A)  Profile turning 
B)  Continuous 
C)  Auto-turning 
D)  Grooving 
A)  Profile turning 
B)  Continuous 
C)  Auto-turning 
D)  Grooving C

Question 2

What is the function of the Fanuc code G28?

Accepted Answer

A)  Spindle speed mode 
B)  Return to home position 
C)  Feed rate mode 
D)  Auto-turning cycle 
A)  Spindle speed mode 
B)  Return to home position 
C)  Feed rate mode 
D)  Auto-turning cycle B

Question 3

What is the major limitation of tool tip programming?

Accepted Answer

Tool tip programming is convenient, but it does have some serious limitations. The correct geometry is created only when turning and facing parallel to either the X- or Z-axis. If we attempt to turn a taper or radius, then a geometry error will occur. This error occurs because the actual tangential edge of the tool falls short of the theoretical toolpath.

Question 4

CNC turning centers do not use the Cartesian coordinate system for programmed coordinates.

Accepted Answer

A) True 
 B)False

Question 5

A ____ tool is a cutting tool used to establish the axial workzeros of a workpiece from which all other cutting tools are referenced through the use of tool offsets.

Accepted Answer

A)  zero setting 
B)  nonreferential 
C)  imaginary 
D)  turret 
A)  zero setting 
B)  nonreferential 
C)  imaginary 
D)  turret

Question 6

Most finish-turning operations should be performed with the aid of automatic cutter compensation.

Accepted Answer

A) True 
 B)False

Question 7

How does the drilling cycle work?

Accepted Answer

The G74 code is used for peck drilling o

Question 8

The ____-word is the Z-axis increment distance from the start to the center of the arc segment.

Accepted Answer

A)  I 
B)  J 
C)  K 
D)  Y 
A)  I 
B)  J 
C)  K 
D)  Y

Question 9

Describe the grooving canned cycle.

Accepted Answer

The grooving canned cycle allows for wid

Question 10

Turning centers follow the convention that the axis aligned with the spindle should be designated "____."

Accepted Answer

A)  I 
B)  X 
C)  Y 
D)  Z 
A)  I 
B)  X 
C)  Y 
D)  Z

Question 11

____ is a mode of operation that allows a lathe spindle to continuously adjust the spindle RPM as the tool moves through different diameters.

Accepted Answer

A)  Proper feed 
B)  Constant surface speed 
C)  Faced surface 
D)  Continuous RPM 
A)  Proper feed 
B)  Constant surface speed 
C)  Faced surface 
D)  Continuous RPM

Question 12

Long tools-like drills will tend to stick out significantly past the edge of the zero setting tool.

Accepted Answer

A) True 
 B)False

Question 13

The G75 code is used for peck drilling on both Okuma and Fanuc controls.

Accepted Answer

A) True 
 B)False

Question 14

The ____ tool tip is the point of intersection formed by two lines that are tangent to a tool nose radius and aligned with the major axes of a lathe.

Accepted Answer

A)  imaginary 
B)  cutter 
C)  compensated 
D)  aligned 
A)  imaginary 
B)  cutter 
C)  compensated 
D)  aligned

Question 15

Turning tools usually have a small radius ground into the tip of the tool, typically ranging from 1/64" to ____".

Accepted Answer

A)  1/32 
B)  1/16 
C)  3/32 
D)  1/8 
A)  1/32 
B)  1/16 
C)  3/32 
D)  1/8

Question 16

The ____ threading cycle (invoked with G71) allows us to cut a complete screw thread with a single block of code.

Accepted Answer

A)  multi-pass 
B)  imaginary 
C)  dwell 
D)  chip-breaking 
A)  multi-pass 
B)  imaginary 
C)  dwell 
D)  chip-breaking

Question 17

____ is an operation in which the tool is plunged into the surface of the workpiece until the proper depth is reached.

Accepted Answer

A)  Drilling 
B)  Threading 
C)  Filing 
D)  Grooving 
A)  Drilling 
B)  Threading 
C)  Filing 
D)  Grooving

Question 18

What is the direction of each lathe axis?

Accepted Answer

Positive Z points to the right of the sp

Question 19

Roughing operations are a very time-consuming issue with lathe programming.

Accepted Answer

A) True 
 B)False

Question 20

What rules apply to cutter compensation for turning?

Accepted Answer

The same rules apply to cutter compensat

____ cycles are canned cycles that are used to automate stock removal for turning operations.

What is the function of the Fanuc code G28?

What is the major limitation of tool tip programming?

CNC turning centers do not use the Cartesian coordinate system for programmed coordinates.

A ____ tool is a cutting tool used to establish the axial workzeros of a workpiece from which all other cutting tools are referenced through the use of tool offsets.

Most finish-turning operations should be performed with the aid of automatic cutter compensation.

How does the drilling cycle work?

The ____-word is the Z-axis increment distance from the start to the center of the arc segment.

Describe the grooving canned cycle.

Turning centers follow the convention that the axis aligned with the spindle should be designated "____."

____ is a mode of operation that allows a lathe spindle to continuously adjust the spindle RPM as the tool moves through different diameters.

Long tools-like drills will tend to stick out significantly past the edge of the zero setting tool.

The G75 code is used for peck drilling on both Okuma and Fanuc controls.

The ____ tool tip is the point of intersection formed by two lines that are tangent to a tool nose radius and aligned with the major axes of a lathe.

Turning tools usually have a small radius ground into the tip of the tool, typically ranging from 1/64" to ____".

The ____ threading cycle (invoked with G71) allows us to cut a complete screw thread with a single block of code.

____ is an operation in which the tool is plunged into the surface of the workpiece until the proper depth is reached.

What is the direction of each lathe axis?

Roughing operations are a very time-consuming issue with lathe programming.

What rules apply to cutter compensation for turning?

Computer Numerical Control of Machine Tools

Measurement and Quality

The Nc Programming Process

Nc Materials, Tooling and Machining Processes

Tool and Workpiece Setup

Programming Concepts and Job Planning

Codes for Positioning and Milling

Basic Codes to Control Machine Functions

Hole-Making Cycles

Tool Radius Compensation

Advanced Programming Concepts

Cadcam

Mathematics for Nc Programming

Filters

Exam 12: Lathe Programming

____ cycles are canned cycles that are used to automate stock removal for turning operations.

What is the function of the Fanuc code G28?

What is the major limitation of tool tip programming?

CNC turning centers do not use the Cartesian coordinate system for programmed coordinates.

A ____ tool is a cutting tool used to establish the axial workzeros of a workpiece from which all other cutting tools are referenced through the use of tool offsets.

Most finish-turning operations should be performed with the aid of automatic cutter compensation.

How does the drilling cycle work?

The ____-word is the Z-axis increment distance from the start to the center of the arc segment.

Describe the grooving canned cycle.

Turning centers follow the convention that the axis aligned with the spindle should be designated "____."

____ is a mode of operation that allows a lathe spindle to continuously adjust the spindle RPM as the tool moves through different diameters.

Long tools-like drills will tend to stick out significantly past the edge of the zero setting tool.

The G75 code is used for peck drilling on both Okuma and Fanuc controls.

The ____ tool tip is the point of intersection formed by two lines that are tangent to a tool nose radius and aligned with the major axes of a lathe.

Turning tools usually have a small radius ground into the tip of the tool, typically ranging from 1/64" to ____".

The ____ threading cycle (invoked with G71) allows us to cut a complete screw thread with a single block of code.

____ is an operation in which the tool is plunged into the surface of the workpiece until the proper depth is reached.

What is the direction of each lathe axis?

Roughing operations are a very time-consuming issue with lathe programming.

What rules apply to cutter compensation for turning?

Computer Numerical Control of Machine Tools

Measurement and Quality

The Nc Programming Process

Nc Materials, Tooling and Machining Processes

Tool and Workpiece Setup

Programming Concepts and Job Planning

Codes for Positioning and Milling

Basic Codes to Control Machine Functions

Hole-Making Cycles

Tool Radius Compensation

Advanced Programming Concepts

Cadcam

Mathematics for Nc Programming

Filters