TPC 325 How To machine Work Held In A Chuck

Question 1

The jaws of a 3-jaw universal chuck close and open

At the tail stock
In unison
Only when mounted in a lathe
Separately

Answer 1

In unison

Question 2

The jaws of a 4 – jaw independent chuck

Are designed to grasp large or odd shaped work
Can be reversed
Operate separately
All of the above

Answer 2

All of the above

Question 3

The quickest and most convenient Chuck to set up on a lathe is the

Arbor
Four – jaw independent chuck
Mandrel
Three – jaw, universal chuck

Answer 3

Three-jaw universal chuck

Question 4

The size of a chuck is designed by its

Circumference
Diameter
Radius
Width

Answer 4

Diameter

Question 5

Before mounting a chuck, always place a board across the

Apron
Spindle
Tool post
Ways

Answer 5

Ways

Question 6

When you install a chuck on the spindle, you should never use

A key
A wrench
Power from the lathe
Your hands

Answer 6

Power from the lathe

Question 7

A chuck-mounted workpiece must be centered, with the work axis parallel to the lathes

Centerline
Cross slide
Guide bar
All of the above

Answer 7

Centerline

Question 8

An exact reference for centering oddly shaped work pieces in a chuck is the

Dead center
Guide bar
Live center
Tool post

Answer 8

Dead center

Question 9

The type of work that can be held in a collect chuck is limited to

Large workpieces
Oddly shaped workpieces
Small diameter workpieces
Workpieces with rough outside diameters

Answer 9

Small diameter workpieces

Question 10

A mandrel is mounted in the lathe

Between centers
In a collet
In a four jaw-chuck
In a three jaw-chuck

Answer 10

Between centers

Question 11

Facing a workpiece gives it a square ends and a

Countersink
Reference surface
Rounded edge
All of the above

Answer 11

Reference surface

Question 12

Which angle is the most important on a facing tool?

Back radius
Back rake
Nose radius
Side rake

Answer 12

Side rake

Question 13

When facing, you should set the tool on the workpiece’s

Centerline
Circumference
Horizontal plane
Perpendicular axis

Answer 13

Centerline

Question 14

When facing a large area on a workpiece, use the

Apron handwheel
Automatic feed
Manual feed
Reverse speed

Answer 14

Automatic feed

Question 15

The rough cut is intended to remove material from the workpiece

In small amounts
Quickly
Slowly
Smoothly

Answer 15

Quickly

Question 16

The roughing cut should leave enough material for a

Facing cut
Finishing cut
Grinding operation
Trial rough cut

Answer 16

Finishing cut

Question 17

A rough turning tool does not make a good

Finish cut
Heavy cut
Trial cut
All of the above

Answer 17

Finish cut

Question 18

The proper use of cutting fluids allows you to increase

Cutting speed
Depth of cut
Time savings
All of the above

Answer 18

All of the above

Question 19

The characteristic that makes a finishing tool differ from a roughing tool is it’s

Decreased side rake
Extended shank
Increased back rake
Rounded point

Answer 19

Rounded point

Question 20

A trial finish cut is just like a trial rough cut except that you are looking primarily for

Accidental tapering
Depth of cut
Surface finish quality
Tool chatter

Answer 20

Surface finish quality

Question 21

Boring a hole in a workpiece makes the hole larger and

Faces it
Threads it
Trues it
Turns it

Answer 21

Trues it

Question 22

A bored hole and the circular path in which the tool or workpiece is rotating are always

Concentric
Horizontal
Parallel
Vertical

Answer 22

Concentric

Question 23

The end clearance on a boring tool bit prevents the

Heel from rubbing
Post from binding
Shank from bending
Workpiece from shifting

Answer 23

Heel from rubbing

Question 24

Within practical limits, always use a boring bar with the

Greatest length possible
Largest diameter possible
Longest overhang possible
Smallest radius possible

Answer 24

Largest diameter possible

Question 25

The type of corner produced at the end of a bored hole is determined by the Boring bar diameter Cutting speed Cutting tool profile Lathe design

Answer 25

Cutting tool profile

Question 26

When you bore a hole, you should offset the compound rest to an angle of _____ degrees 5 29 30 60

Answer 26

60

Question 27

During boring operations, a chip buildup should be cleaned out After completing the entire boring operation Before the tool is installed Only after counter boarding Only when the lathe is completely stopped

Answer 27

Only when the lathe is completely stopped

Question 28

Forming a recess at the top of an existing hole is called Counterboring Facing Knurling Turning

Answer 28

Counterboring

Question 29

The counterbore must be concentric with the Bore Cross slide centerline Tool post Tool profile

Answer 29

Bore

Question 30

Counterboring procedures are the same as those for Turning Facing Boring Knurling

Answer 30

Boring

Question 31

Matching a recess between two sets of internal threads separates the threads and Helps alignment prevents chatter Provides chip clearance All of the above

Answer 31

Provides chip clearance

Question 32

The diameter of a hole to be threaded must equal the threads Lead radius Major diameter Minor diameter Pitch

Answer 32

Minor diameter

Question 33

When threading a bored hole, be sure that you allow for A 60-degree angle of thread A counterbore A taper Tool clearance

Answer 33

Tool Clarence

Question 34

A thread-cutting tool must be ground to the particular Boring bar form Lathe design Recess width Thread form

Answer 34

Thread form

Question 35

For right-hand thread cutting, the compound-rest must be rotated to the left_________ degrees. 5 29 45 60

Answer 35

29

Question 36

How many different methods are there of boring a taper on a lathe? Four One Three Two

Answer 36

Two

Question 37

When you use the compound-rest method to bore a taper, you must rotate the compound to an angle equal to One half the included angle One third the included angle The included angle Twice the included angle

Answer 37

One half the included angle

Question 38

When using the compound-rest method for boring a taper, you must set the tool post and tool holder parallel to the Compound rest centerline Lathe centerline Workpiece All of the above

Answer 38

Compound rest centerline

Question 39

Of all the methods available to machine a taper on a lathe, which of the following is the most accurate? Compound-rest method Reversed-chuck method Tailstock-offset method Taper-attachment method

Answer 39

Taper-attachment method

Question 40

The telescopic taper attachment differs from the plain taper attachment in which of the following ways? A cross-feed screw telescopes internally It clamps to the tailstock Its guide bar is stationary The workpiece must be held between centers

Answer 40

A cross-feed screw telescopes internally

Question 41

A faceplate provides a reference surface that is perpendicular to the lathes Apron Headstock Spindle axis Tool post

Answer 41

Spindle axis

Question 42

When turning a faceplate, you should select a_________ tool Broad – nosed Rough facing Rough turning Threading

Answer 42

Broad – nosed

Question 43

Large workpieces that pose mounting problems in a chuck can be mounted on a faceplate with Clamps Drivers Faceplate jaws V-blocks

Answer 43

Faceplate jaws

Question 44

Face plate clamps are inserted into The cored hole The faceplate slots The live center The workpiece

Answer 44

The faceplate slots

Question 45

To prevent a workpiece from shifting backwards on a faceplate, you should use a Clamps Counterweight Driver Mandrel

Answer 45

Driver

Question 46

Workpieces that cannot be held against the vertical surface of a faceplate should be mounted on A mandrel An angle plate The apron The ways

Answer 46

An angle plate

Question 47

You can offset the weight of an angle plate by using a Chuck Counterweight Driver V -block

Answer 47

Counterweight

Question 48

Each half of the clamp on a V-block angle plate has Set screws Straps V-shaped jaws A keyway

Answer 48

V-shaped jaws

Question 49

A specialized mandrel for machining eccentric circular areas has more than one set of Center holes Clamps Counterweights Drivers

Answer 49

Center holes

Question 50

When you bore very large workpieces, such as motor housings, on lathe, you should mount them In a special chuck On the carriage In a collet On a mandrel

Answer 50

On the carriage