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6 Month 6 > TPC 324 Lathe Turning Between Centers > Flashcards

TPC 324 Lathe Turning Between Centers Flashcards

1
Q

Always check the lathe bed to make sure it is

Attached
Level
Straight
All of the above

A

Level

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2
Q

Longer work pieces should be

Mounted between centers
Mounted in a chuck
Mounted on a faceplate
Any of the above

A

Mounted between centers

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3
Q

When installing a faceplate

Screw it on by hand
Screw it on using the lathes power
Tap it in place with a small mallet
Use the face plate tool attachment

A

Screw it on by hand

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4
Q

Always select a lathe dog

At least as long as the workpiece
Not larger than necessary to accept the workpiece
Slightly larger than necessary to accept the workpiece
That will bottom out in the faceplate

A

Not larger than necessary to accept the workpiece

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5
Q

When facing, use a half center to

Allow clearance for the cutting tool
Cut back on friction on the dead center
Help turn very long work pieces
Turn at very high speeds

A

Allow clearance for the cutting tool

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6
Q

Be sure the tail of the lathe dog

Bottoms out in the faceplate
Does not extend to the faceplate
Does not sit on the bottom of the faceplate
Extends beyond the heads stock

A

Does not sit on the bottom of the faceplate

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7
Q

Make sure the cutting tool

Does not hang out excessively from the tool holder
Does not protrude from the tool holder
Extends well beyond the tool holder
Is always at a 90° angle toward the workplace

A

Does not hang out excessively from the tool holder

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8
Q

The cutting speed and feed on a lathe should always be

Calculated to obtain the best possible finish
In accordance with published tables from manufacturers
In balance
All of the above

A

All of the above

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9
Q

When moving the cutter into the workpiece during facing,

Always lightly strike the dead center
Be careful not to strike dead center
Do not loosen the carriage locking nut
Never use the hand cross feed

A

Be careful not to strike dead center

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10
Q

Always remember that your depth of cut will

Reduce the overall diameter by one half the amount of cut
Reduce the overall diameter by exactly the amount of cut
Reduce the overall diameter by twice the amount of cut
Reduce the overall diameter three times the amount of cut

A

Reduce the overall diameter by twice the amount of cut

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11
Q

Always use a right-hand tool when

Cutting left to right
Cutting right to left
Making a standard finishing cut
Shouldering

A

Cutting right to left

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12
Q

Depending on the hand of cut, the cutting tool point should be _____ degrees toward the headstock or tailstock

2 to 3
4 to 5
6 to 7
8 to 9

A

4 to 5

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13
Q

In rough turning, the cutter point should positioned _____ The centerline

4° below
5° above
5° below
Directly on

A

5° above

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14
Q

With a constant depth of cut

An increase in speed does not affect feed
An increase in speed requires a decrease in feed
An increase in speed requires an increase in feed
An increase in speed will double the feed

A

An increase in speed requires a decrease in feed

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15
Q

The most accurate way to test if adjustments are needed is

A finish cut
A rough cut
A trial cut
All of the above

A

A trial cut

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16
Q

When reversing work end for end between centers,

Do not use the lathe dog on the reserved operation
Increase the feed rate
Increase the speed rate
Protect the machine surface from the lathe dog

A

Protect the machine surface from the lathe dog

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17
Q

Always take your finishing cut

At twice the speed as the rough cut
In the opposite direction of the rough cut
In the same direction as the rough cut
With the same tool as the rough cut

A

In the same direction as the rough cut

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18
Q

When aligning the cutting tool for a finishing cut

Set the cutting tool above the center line of the work
Set the cutting tool below the centerline of the work
Set the micrometer collar at the desired depth of the cut
Set the micrometer collar at the desired diameter of the work

A

Set the cutting tool above the centerline of the work

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19
Q

A trial cut should be about

1/16 inch
1/4 inch
3/4 inch
1 inch

A

1/4 inch

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20
Q

When a shoulder is to be turned close to the end of the workpiece, use a scale and

Compass to measure its location
Dye to measure its location
Hermaphrodite caliper to measure location
Micrometer to measure its location

A

Hermaphrodite caliper to measure its location

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21
Q

The bent leg of a hermaphrodite caliper is placed against the_____ of the workpiece

Faced end
Middle
Outside diameter
Radius

A

Faced end

22
Q

In order to lay off shoulder lengths more accurately when making more than one identical, use a

File
Finishing tool
Parting tool
Roughing tool

A

Parting tool

23
Q

Filleted shoulders are turned with a_____ cutting tool

Round nosed
Square nosed
Straight nosed
V – tipped

A

Round nosed

24
Q

Different size fillets are made by changing

The angle of cutter feed
The degree of tailstock offset
The nose radius on the cutting
To a different sized fillet attachment

A

The nose radius on the cutting

25
Q

Square corners on a shoulder are needed when

A chamfer is specified
Other machine parts will be mounted against them
The shoulder follows a taper
The shoulder needs added reinforcement

A

Other machine parts will be mounted against them

26
Q

Undercuts always ensure

Chamfered edges
Filleted shoulders
Rounded corners
Square corners

A

Square corners

27
Q

Knurling operations always

Deform the workpiece surface
Smooth the workpiece surface
True up a workpiece surface
All of the above

A

Deform the workpiece surface

28
Q

A 21 pitch knurling tool will produce a(n) _____ grade knurl

Coarse
Fine
Medium
Extra fine

A

Medium

29
Q

On a finished work surface, filing is usually done to

Bring the workpiece to finished dimensions
Form a diamond pattern in the workpiece
Remove tool marks and other irregularities
All of the above

A

Remove tool marks and other irregularities

30
Q

The split nut assembly is used only when

Chamfering
Cutting threads
Knurling
Shouldering

A

Cutting threads

31
Q

Never engage the split nut assembly

Unless another feed mechanism is in operation
When another automatic feed mechanism is in operation
When the trial cut is being made
When working between centers

A

When another automatic feed mechanism is in operation

32
Q

The distance from a point on one thread to the same point on the next thread parallel to the screw axis is the

Lead
Pitch
Travel
Width

A

Pitch

33
Q

The distance which a point pon one thread travels during one revolution of the screw is the

Lead
Pitch
Travel
Width

A

Lead

34
Q

When threading long slender workpieces, they should always be

Held in a chuck
Held in a mandrel
Supported in a collet
Supported with a follower or steady rest

A

Supported with a follower or steady rest

35
Q

American National thread angles are always

40°
55°
60°
69°

A

60°

36
Q

When cutting American National threads, the compound rest should always be set at an angle of

19°
29°
37°
42°

A

29°

37
Q

The part of a lathe which can perform the same functions as a thread stop is the

Ball crank
Lead screw
Live center
Micrometer collar

A

Micrometer collar

38
Q

How many divisions are marked on a thread dial indicator?

1
2
4
8

A

8

39
Q

In cutting a right hand thread, the cutting tool is always fed

At twice the angle of the tailstock setover
From left to right
From right to left
In both directions

A

From right to left

40
Q

A 5/8 in./ft. taper often used for twist drills, reamers, end mills, and lathe centers is the

American standard machine taper
Brown & sharpe taper
Jaron taper
Morse taper

A

Morse taper

41
Q

A taper whose calculation depends on its assigned number in the form of a numerator over a constant denominator of 8, 10, or 2 is a(n)

American Standard Taper
Brown & sharp taper
Jarno taper
Morse taper

A

Jarno Taper

42
Q

The basic formula for calculating a taper is

Large diameter - small diameter
– – – – – – – – – – –
Length

Length
– – – – – – – – –
Small diameter – large diameter

Small diameter – large diameter
– – – – – – – – –
Length

Tangent of the included angle
– – – – – – – – – – –
Large diameter + small diameter

A

Large diameter – small diameter
– – – – – – – – –
Length

43
Q

The taper turning method which requires Work to be removed from the lathe for the set up is the______ method

Compound rest
Plain taper attachment
Tailstock setover
Telescopic taper attachment

A

Tailstock setover

44
Q

The amount of inward and outward feed on the lathe’s compound rest when using the taper attachment is controlled by the

Guide bar
Lead screw
Tailstock handwheel
Tool post

A

Guide bar

45
Q

A plain taper attachment requires you to

Disconnect the crossfeed screw
Disconnect the taper attachment from the lathe bed
Misalign the dead center
Swivel the compound rest

A

Disconnect the crossfeed screw

46
Q

The key to using the compound rest method for turning a taper is the fact that the compound rest

Detaches
Moves up and down
Swivels
All of the above

A

Swivels

47
Q

When using the compound rest method for turning tapers, you will need to work with angular dimensions because

Taper dimensions are always given in angles
Tapers are figured in metrics
The base of the rest is graduated in degrees
The compound rest swivels on half angles

A

The base of the rest is graduated in degrees

48
Q

When making cutting adjustments using the compound rest method, you must back the compound rest all the way out in order to

Allow for the play in the tool post
Have full travel
Make the tool contact the workpiece
Use the hand cross feed controls

A

Use the hand cross feed controls

49
Q

Along with using a series of trial cuts, the most accurate way to obtain angular settings for a taper turning is the

Compass and gauge method
Dial test indicator and veneer bevel protractor method
Hand crossfeed, and micrometer collar method
Surface averaging instrument method

A

dial test indicator and veneer, bevel protractor method

50
Q

You should always cut off bar stock for machining

After it has been rough, turned
Slightly longer than needed
Slightly shorter than needed
With a band saw

A

Slightly longer than needed

6 Month 6 (8 decks)

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