Deck 41: Oblique Sketching

Question 1

In the accompanying figure, the items identified with a number 1 are the ____.

A) midpoint of triangles
B) diagonals and center lines
C) arcs through midpoints
D) base lines

Answer 1

D

Question 2

List the steps in making oblique sketches with straight lines.

Answer 2

STEP 1 Select one view of the object that gives most of the desired information.
STEP 2 Draw light horizontal and vertical baselines.
STEP 3 Lay out the edges of the die block in the front view from the base lines. All vertical lines on the front face of the object will be parallel to the vertical base line; all horizontal lines will be parallel to the horizontal base line. All lines will be in their true size and shape in this view. STEP 4 Start at the intersection of the vertical and horizontal base lines and draw a line at an angle of 45° to the base line. This line is called the oblique base line.
STEP 5 Draw the remaining lines for the right-side and top view parallel to either the oblique base line or to the horizontal or vertical base lines, as the case may be. Because these lines are not in their true size or shape, they should be drawn so they appear in proportion to the front view.
STEP 6 Place dimensions so they are parallel to the edge lines.
STEP 7 Erase unnecessary lines. Darken object lines to make the sketch clearer and easier to interpret.

Question 3

In the accompanying figure, the item identified with a number 4 is the ____.

A) midpoint of triangles
B) diagonals and center lines
C) arcs through midpoints
D) base lines

Answer 3

A

Question 4

Because the top and side views of a circle or arc located on the front face of an oblique sketch are distorted, a circle or arc will be ____ in these views.

A) shortened
B) distorted
C) rounded
D) elliptical

Question 5

List the steps in sketching circles in oblique.

Question 6

Describe foreshortening.

Question 7

In the accompanying figure, the items identified with a number 3 are the ____.

A) midpoint of triangles
B) diagonals and center lines
C) arcs through midpoints
D) base lines

Question 8

A(n) ____ is a line that drawn at an angle of 45° to the base line of an image at the intersection of the vertical and horizontal base lines.

A) center line
B) midpoint line
C) oblique base line
D) primary diagonal line

Question 9

A(n) ____ is a type of pictorial drawing on which two or more surfaces are shown at one time on one drawing.

A) oblique sketch
B) isometric sketch
C) orthogonal sketch
D) perspective sketch

Question 10

Describe right and left oblique sketches.

Question 11

Describe an oblique sketch and where they are used most often.