Page 124 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

• Draw the front view and the end view for the prisms A & B with space in between and mark the corners as
shown.
• Draw a square of side 35 mm, faces at 45° to the (HP) XY on the end view.
• Mark the corners as p", q", r" & s" as shown.

• Draw its projection to the top view and mark the points where the lines meet the square a,b,c & d as 1,2,3,4,5
& 6.
• Draw the vertical projectors from points 1,2,3 & 4 on to the front view.
• Draw horizontal projectors from corners p",q",r" & s" of EV on to the FV intersecting projection line from TV.

• Mark the intersecting points 1', 2', 3', 4', 4 ' & 1 '.
1
1
• Join the points 1'2', 2'1 ', 1'4', 3'4 '.
1
1
The lines 1'-2', 2'-1 ', 4'-3', 3'-4 ' are the lines of intersection. (Fig 15)
1 1
Fig 15

Exercise 7.16

The cylinders A & B are positioned as shown, (Fig 16) intersects each other at right angles. Draw the plan, ele-
vation, side view and show the curve of intersection.
• Draw the three views of cylinder `A' as positioned shown. (Fig 17)
• Draw the side view of the cylinder `B', as circle of diameter equals to 40 mm, such that its centre is the mid-
point of the axis of cylinder `A'.
• Divide the circle into 12 equal parts and number them.
• Draw the front view and top view of cylinder `B' projecting from the side view of the horizontal cylinder.
Note: Consider that a number of horizontal section planes passing through the generators of the
horizontal cylinder to cut both cylinders. For all the horizontal sectional planes, the sectional top
view will always be a circle of `n' diameter. Also the sectional top view of the vertical cylinder will
a circle of `m' diameter.

111
CITS : Engineering Drawing (Mechanical) - Exercise 7