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Millwright Level 1 > Print Reading > Flashcards

Print Reading Flashcards

1
Q

A method of representing a three dimensional object

A

Orthographic Projection

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2
Q

Front view is also referred to as the

A

key view

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3
Q

Glass Box theory demonstrates what view

A

Third angle orthographic projection of an object suspended in a glass box

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4
Q

The Front, Top, Right view in third angle plane of views are referred to as

A

Frontal, Profile and Horizontal view

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5
Q

The difference between first and third angle projection

A

first angle- right view on left side of front view

third angle- right view on right side of front view

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6
Q

3d view is called pictorial view. What are 3 views

A

perspective
oblique
isometric

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7
Q

Drawing used in architecture and construction because drawing mimics the way eyes see an object.
Front view undistorted with top and right view tapering.

A

Perspective view

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8
Q

Not common in mechanical trades because of distortion to round objects.
Front face undistorted, other sides are distorted in proportion to the angle and scale.

A

Oblique

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9
Q

Common in mechanical trades for good representation of workpiece.
Front view has 30 angle front horizontal with all three axes 120 apart.

A

Isometric

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10
Q

Object or visible line

A

Used to show shape of an object. Should be thick and dark.

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11
Q

Centre line

A

Show a part is symmetrical.

Line is thin, broken, made of alternating long and short dashes.

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12
Q

Hidden line

A

Some features of an object are hidden.

Line is made up of a series of medium dark short dashes.

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13
Q

Dimension line

A

Used for placement of dimension.

Thin line with an arrow on each end to indicated the distance being dimensioned.

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14
Q

Extension line

A

Pair of lines extending from an object. Signify the distance that is to be dimensioned.

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15
Q

Leader line

A

Line leads from information to a particular area.

Thin line terminating with arrow, dot or tilde.

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16
Q

Cutting plane

A

Signifies sectional view was taken.

Lines are thick, dark lines either broke or continuous with arrows at right angles

17
Q

Phantom line

A

Shows a mating, or moving part. Line is broken made up of a long dash followed by two short dashes.

18
Q

Drawings should have lettering in what font.

A

Upper case gothic

19
Q

BC

A

bolt circle

20
Q

BHC

A

bolt hole centre

21
Q

BCD

A

bolt circle diameter

22
Q

C to C

A

centre to centre

23
Q

CTRS

A

centrers

24
Q

D or DIA

A

Diameter

25
Q

TYP

A

typical

26
Q

CBORE

A

counterbores

27
Q

CSK

A

countersink

28
Q

Similar to counterbore but has no depth.

Main purpose to provide flat seat for head of bolt

A

Spotface (SFACE)

29
Q

CH or CHAM

A

chamfers

30
Q

Sizing of woodruff key
first 2 number
last 2 numbers

A

first 2 numbers x 1/32=width

last 2 numbers x 1/8=diameter

31
Q

What angles should chamfers be?

A

45

32
Q

What are 2 bearing types

A

plain

anti friction

33
Q

Full section

A

the cutting plane is straight and goes completely through the work piece

34
Q

half section

A

the cutting plane goes through only half the work piece, showing the inside and outside at the same time

35
Q

removed section

A

shows cross sectional shape of a work piece. A center line is used to show where the section was taken from

36
Q

revolved section

A

similar to a removed section, but the cross sectional shape of an object is revolved 90 degrees

37
Q

broken out section

A

shows only a small portion of a part. a broken line is used to isolate the piece that is to be sectioned

38
Q

offset section

A

cutting plane lines changes direction 90 degree several times to cut through features to be show in section

39
Q

aligned section

A

cutting plane line is rotated through various angles to align all the features

Millwright Level 1 (17 decks)

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