SHEET-3(PROJECTION OF POINTS AND LINES)
SWN | SHEET-3
Indus University
CSE Section
SHEET-3
1).Draw the projection of given points on a common reference line.
i. A, 25 mm above H.P. and 35 mm in front of V.P.ii. B, 30 mm above H.P. and 40 mm behind V.P.
iii. C, 20 mm below H.P. and 45 mm behind V.P.
iv. D, 35 mm below H.P. and 25 mm in front of V.P.
v. E, 45 mm above H.P. and in V.P.
vi. F, 30 mm below H.P. and in V.P.
vii. G, on H.P. and 35 mm in front of V.P.
viii. H, on H.P. and 25 mm behind of V.P.
2).A line AB, 75 mm long, has its end A 20 mm below H.P. and 25 mm behind V.P. The end B is 50 mm below H.P. and 65 mm behind V.P. Draw the projections of line AB and find its inclinations with H.P. and V.P. find apparent inclinations with H.P. and V.P. Also find PL and EL of line AB.
3).A line PQ has its end P, 15 mm above H.P. and 10 mm in front of V.P. The end Q is 60 mm above H.P. The distance between the end projectors is 55 mm. The line is inclined to H.P. by 25°. Draw the projections and find its inclination with V.P. and true length of line PQ. Also find EL, PL and apparent angles with H.P. and V.P.
4). A line AB, 65 mm long, has its end A 20 mm above HP and 25 mm in front of VP. The end B is 40 mm above HP and 65 mm in front of VP. Draw the projections of AB and show its inclination with HP and VP, also find apparent inclination with HP and VP and find Elevation length and Plan length of line AB.
5). A line CD has its end C is 15 mm above H.P. and 10 mm in front of V.P. The end D is 60 mm above H.P. The distance between the end projectors is 50 mm. The line is inclined to H.P. by 25°. Draw the projections and find its inclination with V.P. and true length of line CD. Find EL, PL and apparent inclinations with H.P. and V.P.
6).A line AB is 80 mm long. It is inclined at an angle of 45° to the HP and 30° to the VP. The end A is 20 mm above HP and 30 mm in front of VP. Draw the projections of the line AB. Find the elevation length and the plan length of the line. Determine the apparent inclinations of the line AB with HP and VP.
