Question

DRAW THE PROJECTION OF THE FOLLOWING LINES 1. A line AB 40 mm long is parallel to VP and inclined at an angle of 30° to HP. The end A is 15 mm above HP and 20 mm in front of VP. Draw the projections of the line. 2. Draw the projections of straight line AB 60 mm long parallel to HP and at an angle of 40° to VP. The end A is 30 mm above HP and 20 mm in front of VP. 3. A line AB of 25 mm long is perpendicular to HP and parallel to VP. The end point A is 10 mm above HP. The line is 20 mm in front of VP. Draw the projections of the line. A line AB of 50 mm long is parallel to both HP and VP. The line is 40 mm above HP and 30 mm in front of VP. Draw the projections of the line. The length of the front view of a line CD which is parallel to HP and inclined 30° to VP, is 50 mm. The end C of the line is 15 mm in front of VP and 25 mm above HP. Draw the projections of the line. †

Answer 1

YO MM Ces 30° R 40 A 1 -2 30° ISMM ! ne Yo los 30° - 40 = 34.64mm Romm 20mm 34.64 mm k 45.963mm Cos yo°=n 60 3 = n = 60 Cosyoo n=45.963mm Kit 120 mm - - Gomm 2 = 2 Sam TOMM onim

k somm omm 130mm somm. By Somm Cos 30o = so P-2 125mm رووح 15mm -X CD'z so Coszo enz so 22 30 23 - 57.74MM - 30 = 57.74mm