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drafting > DDT 164 Study Guide Test #3 > Flashcards

DDT 164 Study Guide Test #3 Flashcards

1
Q

Know the two methods of creating auxiliary views we used in class

A

1.Fold Line Method
2.Reference Plane Method

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2
Q

Auxiliary View

A

An orthographic view other than one of the six principle views.

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3
Q

Line of sight (LOS)

A

Direction of view. Perpendicular to projection plane, Parallel with
construction lines. Perpendicular to fold lines or reference lines.

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4
Q

Inclined Plane

A

a plane inclined at an angle to the horizontal

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5
Q

Inclined Plane
How many auxiliary views need to show the true size and shape?
How it looks in the primary views?

A

1

L,A,A

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6
Q

Primary Auxiliary View

A

View projected of one of the six principle views

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7
Q

Second Auxiliary View

A

View projected of a primary auxiliary view

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8
Q

Tertiary Auxiliary View

A

View projected of a secondary or another tertiary auxiliary view.

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9
Q

Partial Auxiliary View
rules associated with them

A

Only show the area that is true size and shape, Can use short break lines to separate it from the other part of drawing. Used to save time.

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10
Q

Oblique Surface
How many auxiliary views need to show the true size and shape?
How it looks in the primary views?

A

2

A,A,A

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11
Q

Dihedral Angles

A

Angle between two planes

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12
Q

Auxiliary View Classifications

A

1.Primary Auxiliary View
2.Secondary Auxiliary View
3.Tertiary Auxiliary View.

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13
Q

Primary Auxiliary View Classifications and descriptions of each (where projected from, and what dimension is shown in true length) (Be able to list)

A
  1. Depth Auxiliary View – Projected from Front View – Shows depth dimension in true length.
  2. Height Auxiliary View - Projected from Top View – Shows height dimension in true length
  3. Width Auxiliary View - Projected from Profile View – Shows width dimension in true length.
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14
Q

Auxiliary view Applications

A
  1. Reverse Construction
  2. True length of Line
  3. Point View of Line
  4. Edge View of Plane
  5. True Size of Plane
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15
Q

Three traditional methods used to solve spatial problems are:

A
  1. Direct View Method (Reference Plane Method)
  2. Fold Line Method
  3. Revolution Method
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16
Q

A __________ has no width, height, or depth

A

Point

17
Q

A __________ is a geometric primitive that has no thickness, only length and direction

A

Line

18
Q

Rule #1: - True Length of a Line
If a line is positioned __________ to the projection plane and the line of sight is __________ to that projection plane, then the line will appear as true length

A

Parallel

Perpendicular

19
Q

Rule #2: - Point View of a Line
If the line of sight is __________ to a true length line, the line will appear as a __________ in the adjacent view. Corollary: Any adjacent view of a point view of a line will show the true length of a line.

A

Parallel

Point
View

20
Q

Rule #3 - Planar Surface Views
Planar surfaces of any shape always appear either as __________ or as surfaces of __________ configuration

A

Edges

Similar

21
Q

Rule #4 - Edge View of a Plane
If a line in a plane appears as a __________ the plane appears as an __________.

A

Point

Edge

22
Q

Rule #5 - True- Size Plane
A true-size plane must be __________ to the line of sight and must appear as an __________ in all adjacent views.

Corollary: If a plane is true-size then all lines in the plane are true length and all angles are true.

A

Perpendicular

Edge

23
Q

To find the Dihedral Angle between two intersecting planes you must create a view where
BOTH planes are in __________ view and where there intersecting line appears as a __________.

A

Edge

Point

24
Q

A(n) __________ is a point or line where two geometric forms, such as line or surfaces, meet or cross each other.

A

Intersection

25
Q

__________ is the clear and correct representation of the relative positions of two geometric figures in multiview drawings.

A

Visibility

26
Q

The intersection of a line and a plane is referred to as the __________.

A

Piercing

Point

27
Q

The intersection of two planes is a __________ all of whose points are common to both planes.

A

straight line

28
Q

A __________ is the unfolded or unrolled flat or plane figure of a 3-D object.

A

Development

29
Q

A __________ is a single curved surface that begins at a point called a pole and becomes larger as it travels in a plane around the origin.

A

spiral

30
Q

A __________ is the curve generated by the motion of a point on the circumference of a circle as the circle is rolled along a straight line in a plane.

A

cycloid

31
Q

A __________ is the spiral path of a point on a string unwinding from a line, circle or polygon.

A

involute

32
Q

A __________ is the curve formed by a point moving uniformly at both an angular and linear rate around a cylinder or cone.

A

helix

33
Q

A __________ surface is a flat, two dimensional bounded surface.

A

Planar

34
Q

A __________ surface is generated by moving a straight line revolved around an axis or vertex.

A

Single-curved

35
Q

A __________ surface is a surface generated by a curved line revolving around an axis (cannot be developed)

A

Double-curved

36
Q

A __________surface is a single- or double curved transitional surface. (cannot be developed)

A

Warped

37
Q

A __________ surface is a surface produced by the movement of a straight-line following a path to form a plane, single-curved surface or a warped surface.

A

Ruled

38
Q

A single curved ruled surface can be developed.

A
39
Q

A Torus is an example of a double-curved surface. (donut)

A

drafting (11 decks)

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