# IED Unit 2 Assessment

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Questions and Answers
• 1.

### A method of representing 3-D objects on a plane having only width and height is a ___.

• A.

Multi-view drawing

• B.

Orthographic projection

• C.

Perspective sketch

• D.

Oblique sketch

Correct Answer
B. Orthographic projection
Explanation
An orthographic projection is a method of representing 3-D objects on a plane by using multiple 2-D views, typically front, top, and side views. This technique allows for accurate measurements and proportions of the object to be shown, as it eliminates the distortion that can occur in perspective sketches or oblique sketches. Therefore, an orthographic projection is the appropriate method for representing 3-D objects on a plane with only width and height.

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• 2.

### A ___ is an oblique pictorial where all dimensions are full scale.

• A.

Cavalier pictorial

• B.

Cabinet pictorial

• C.

Perspective sketch

• D.

Isometric sketch

Correct Answer
A. Cavalier pictorial
Explanation
A cavalier pictorial is an oblique pictorial where all dimensions are full scale. In this type of pictorial, the object is represented in a way that shows all three dimensions (length, width, and height) at their true scale. This means that the object appears as it would in real life, without any distortion or foreshortening. The other options, cabinet pictorial, perspective sketch, and isometric sketch, all involve some degree of distortion or foreshortening in their representation of the object.

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• 3.

### Of the pictorial sketches pictured below, which one is a two-point perspective?

• A.

Figure 1

• B.

Figure 2

• C.

Figure 3

• D.

Figure 4

Correct Answer
D. Figure 4
Explanation
Figure 4 is a two-point perspective because it shows a scene where two vanishing points are present on the horizon line. In two-point perspective, objects appear to recede into the distance towards two different points on the horizon, creating a sense of depth and dimension. The other figures may show different perspectives or only have one vanishing point, making them not two-point perspectives.

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• 4.

### Which figure below contains a multi-view drawing that is associated with the given isometric pictorial?

• A.

Figure 1

• B.

Figure 2

• C.

Figure 3

• D.

Figure 4

Correct Answer
A. Figure 1
• 5.

### Which line type is labeled C?

• A.

Construction line

• B.

Object line

• C.

Horizon line

• D.

Vanishing line

Correct Answer
A. Construction line
Explanation
The line labeled C is a construction line. Construction lines are used in technical drawings to help with the layout and construction of objects. They are typically light and drawn with dashed or dotted lines to distinguish them from other types of lines. Construction lines are not part of the final drawing and are often used as guides for creating accurate proportions and angles.

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• 6.

### Which line type is labeled B?

• A.

Construction line

• B.

Object line

• C.

Horizon line

• D.

Vanishing line

Correct Answer
B. Object line
Explanation
Line type B is labeled as an "object line" because it represents the visible edges or outlines of an object in a drawing or diagram. It is used to define the shape, size, and boundaries of the object being represented. This line type is commonly used in technical drawings, architectural plans, and engineering diagrams to provide clear and accurate representations of objects. The other options, such as construction line, horizon line, and vanishing line, do not accurately describe the purpose or use of line type B.

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• 7.

### Label A is pointing to a ___.

• A.

Construction line

• B.

Object line

• C.

Horizon line

• D.

Vanishing point

Correct Answer
D. Vanishing point
Explanation
Label A is pointing to the vanishing point. In perspective drawing, the vanishing point is the point on the horizon line where parallel lines appear to converge. It is used to create the illusion of depth and distance in a two-dimensional drawing.

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• 8.

### One purpose of hatch marks or section lines in an orthographic drawing is to show ___.

• A.

Material

• B.

Texture

• C.

Dimensions

• D.

Finish

Correct Answer
A. Material
Explanation
Hatch marks or section lines in an orthographic drawing are used to indicate the material of the object being depicted. These lines are typically drawn at a 45-degree angle and help to differentiate between different materials or parts within the drawing. By using different hatch patterns or line styles, the drafter can convey information about the materials that will be used in the construction of the object. This can be important for manufacturing and construction purposes, as it helps to ensure that the correct materials are used in the fabrication process.

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• 9.

### A ___ is an oblique pictorial where the depth is represented as half scale but the width and height are full scale.

• A.

Cavalier oblique pictorial

• B.

Cabinet oblique pictorial

• C.

Orthographic projection

• D.

Perspective sketch

Correct Answer
B. Cabinet oblique pictorial
Explanation
A cabinet oblique pictorial is a type of oblique pictorial where the depth is represented as half scale but the width and height are full scale. In this type of drawing, the object is shown at an angle, typically 45 degrees, and the depth is reduced to half its actual size while the width and height remain true to scale. This type of pictorial is often used in technical drawings to provide a clear representation of an object's dimensions and proportions.

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• 10.

### The most common views used in a three view, orthographic drawing are ___.

• A.

Front, top left side

• B.

Front, left side, right side

• C.

Top, front, bottom

• D.

Front, top, right side

Correct Answer
D. Front, top, right side
Explanation
The most common views used in a three view, orthographic drawing are front, top, and right side. These views provide a comprehensive representation of an object by showing its front, top, and right side views. This allows for a complete understanding of the object's shape, dimensions, and features from different angles.

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• 11.

### The measurement associated with an object’s side-to-side dimension is known as ___.

• A.

Width

• B.

Height

• C.

Depth

• D.

Volume

Correct Answer
A. Width
Explanation
The measurement associated with an object's side-to-side dimension is known as width.

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• 12.

### The measurement associated with an object’s front-to-back dimension is known as ___.

• A.

Width

• B.

Height

• C.

Depth

• D.

Volume

Correct Answer
C. Depth
Explanation
The measurement associated with an object's front-to-back dimension is known as depth. This refers to the distance from the front of an object to its back. Width refers to the measurement of an object from side to side, height refers to the measurement from top to bottom, and volume refers to the amount of space occupied by an object.

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• 13.

### The measurement associated with an object’s top-to-bottom dimension is known as ___.

• A.

Width

• B.

Height

• C.

Depth

• D.

Volume

Correct Answer
B. Height
Explanation
The measurement associated with an object's top-to-bottom dimension is known as height.

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• 14.

### A drawing which contains views of an object projected onto two or more orthographic planes is called a(n) ___.

• A.

Multi-view drawing

• B.

Pictorial sketch

• C.

Isometric sketch

• D.

Oblique sketch

Correct Answer
A. Multi-view drawing
Explanation
A drawing which contains views of an object projected onto two or more orthographic planes is called a multi-view drawing. This type of drawing provides a comprehensive representation of the object from different angles and perspectives, allowing for a complete understanding of its shape, size, and proportions. It is commonly used in engineering and technical fields to communicate design ideas and specifications effectively.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Mar 28, 2014
Quiz Created by
Christopher Mack

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