# Engineering homework help

Lecture 9: Section View II ENGR 0101
Engineering Graphics
Spring 2019

Final Exam
May 12
120 Minutes

5 short question (Multiple choice, dimension and autoCAD problems)
1 Multi-view drawing
1 3D Isometric drawing
2 section view drawing
1 extra credit

Section View – review

Section View – review

Section View – review

Section View – review

Section View – review

Section View – review

Section View – review

Section View – review

Section View

Section View

Section View
u  1) draw the outline of the cut section

Section View

Section View
u  1) draw the outline of the cut section
u  2)every line your cutline touch, there’s something happen

Section View

Section View

Section View
1 2 3
4
5 6
7
5
8

Section View
u  1) draw the outline of the cut section
u  2)every line your cutline touch, there’s something happen
u  3)measure how the line move up/down once it touch those line

Section View
1

Section View
1
In a circular object, event can be moved throught its Circumference

Section View

Section View
1
In the new event 1 location, draw a line to the top view, and as you can see, it is 3 unit depth.

Section View
1
Therefore, the first event goes 3 unit

Section View
2
In event 2, it goes 2 unit, but it is going back

Section View
3
In event 3, it goes 1.5 unit

Section View
4
In event 4, it goes 2.5 unit back

Section View
5
In event 5, it goes 2.5 unit

Section View
6
In event 6, it goes 1.5 unit

Section View
7
In event 7, it goes 2 unit

Section View
8
In event 8, it goes 3 unit

Section View
u  1) draw the outline of the cut section
u  2)track every line your cutline touch, there’s an event happen
u  3)measure how the line move up/down once it touch those line
u  Hatch the solid areas

Section View

Section View

Section View It didn’t has arrow here, so you only need to draw half of the object

Section View There is 5 events here
1 2 3 4
5

Section View In event 1, you goes through its Circumference. And then draw a straight line to the top view, and you know it is 2 unit

Section View Next, goes to event 2

Section View In event 2, the Circumference didn’t really help because its center of circle is not in the center of the object

Section View However, the small circle in event 2 are similar to the small in the side. Therefore, we can use the side circle as new event 2

Section View Draw a straight line to top view, it is 2 units

Section View 2 unit in event 2

Section View Next, goes to event 3

Section View Event 3 goes 4 units

Section View Next, goes to event 4. However, event 4 is a hidden line.

Section View If an event meets a hidden line, Your section view’s line need to be discontinuous.

Section View In event 4, it goes 1.5 units from very back

Section View 1.5 units from very back

Section View Next, goes to event 5. Since event 4 is break, now it needs both event 3 and 4 go to event 5

Section View Event 5 goes 2.5 back

Section View goes 2.5 back

Section View goes 2.5 back

Section View close the boundary

Section View Finally, define where is the empty area,and where is solid area

Section View Therefore, event 2 to 3. And event 4 to 5 are empty area
empty
empty

Section View Hatch the solid area

Section View – practice

Homework

homework