Descriptive Geometry Quiz 1
-
A form of oblique projection in which the line-of-sight is drawn at a 45 degree angle from teh X-axis and the protrudting lines are drawn at half scale.
-
Cabinet Oblique
-
General Oblique
-
Cavalier Oblique
-
None of the above
-
Descriptive Geometry Quiz 1 assesses knowledge in oblique and orthographic projections, focusing on cabinet, general, and cavalier projections. It tests understanding of angles and scales in isometric projections, enhancing skills crucial for technical drawing and engineering graphics.
(255).jpg "Descriptive Geometry Quiz 1 - Quiz")
Quiz Preview
- 2.
The two types of orthographic projections are:
-
First and Third Angle
-
First and Second Angle
-
Second and Third Angle
-
None of the above
Correct Answer
A. First and Third AngleExplanation
The correct answer is First and Third Angle. Orthographic projections are a method of representing a three-dimensional object in two dimensions. In first angle projection, the object is placed in the first quadrant of the projection plane, and the views are taken from the opposite side of the object. In third angle projection, the object is placed in the third quadrant of the projection plane, and the views are taken from the same side as the object. These two types of projections are commonly used in engineering and technical drawings.Rate this question:
-
- 3.
When constructing an isometric scale, a bse line is first established at a _____ degree angle from the X-axis.
-
15
-
25
-
45
-
None of the above
Correct Answer
A. 45Explanation
When constructing an isometric scale, a baseline is first established at a 45-degree angle from the X-axis. This angle is chosen because it allows for equal proportions and dimensions in the isometric drawing. By using a 45-degree angle, the three axes (X, Y, and Z) in the isometric drawing will have the same scale and measurements, resulting in an accurate representation of the object being drawn.Rate this question:
-
- 4.
A true isometric projection is constructed at a scale of 0.85 or 85% of the actual size.
-
True
-
False
Correct Answer
A. FalseExplanation
An isometric projection is a method of representing a three-dimensional object on a two-dimensional surface. It maintains the proportions of the object and shows all three dimensions equally. However, the scale at which an isometric projection is constructed can vary. Therefore, it is not necessarily true that a true isometric projection is always constructed at a scale of 0.85 or 85% of the actual size. The statement is false because the scale can be different depending on the specific requirements of the projection.Rate this question:
-
- 5.
The three classifications of Oblique projections are:
-
Cabinet, General, and Horizontal
-
Cabinet, General, and Frontal
-
Cabinet, General, and Cavalier
-
None of the above
Correct Answer
A. Cabinet, General, and CavalierExplanation
The correct answer is Cabinet, General, and Cavalier. These three classifications are used in the field of engineering and architecture to describe different types of oblique projections. Cabinet projection is a type of oblique projection where the depth is represented at half scale compared to the height and width. General projection is a type of oblique projection where the depth is represented at full scale. Cavalier projection is a type of oblique projection where the depth is represented at full scale and the angles between the projection lines are not distorted.Rate this question:
-
Quiz Review Timeline (Updated): Mar 21, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Jun 14, 2011Quiz Created by
Bchristman
Back to top