7/27/2019 Projection of Straight Lines 2 310813

1/1

PROJECTION OF STRAIGHT LINES - II

1. A line CD measuring 80 mm is inclined at an angle of 30 to the HP and 45 to the VP. The point Cis 20 mm above the HP and 30 mm in front of VP. Draw the projections of the straight line.

2. A line EF, 75 mm long has its end E, 25 mm above HP and 20 mm in front of VP. The line isinclined at 35 to the HP and 50 to the VP. Draw the projections of the line.

3. One end of a line PQ, 55 mm long is 35 mm in front of the VP and 25 mm above the HP. The line isinclined at 40 to the HP and 30 to the VP. Draw the projections of PQ.

4. The end P of a line PQ, 80 mm long is in both HP and the VP. The line is inclined at 35 to the HPand 40 to the VP. Draw its projections.

5. The end P of a line PQ, 70 mm long is 15 mm above the HP and 20 mm in front of VP. Q is 40 mmabove the HP. Its top view is inclined at 45 to the XY. Draw the projections of the line and find its

true inclinations with the VP and the HP.

6. A line NS, 80 mm long has its end N, 10 mm above the HP and 15 mm in front of the VP. The otherend S is 65 mm above the HP and 50 mm in front of VP. Draw the projections of the line and find itstrue inclination with the HP and VP.

7. One end P of a line, 80 mm long is 10 mm above HP and 15 mm in front of VP. The line is inclinedat 40 to the HP and the top view makes 50 with the VP. Draw the projections of the line and find

its true inclination with the VP.8. One end P of a line PQ, 80 mm long is 25 mm above the HP and 20 mm in front of VP. The line is

inclined at 35 to the VP. Its top view has a length of 50 mm. Draw the projections of the line and

find its true inclination with the HP.9. A line PQ, 60 mm long has its end P, 30 mm above the HP and 15 mm in front of the VP. The end Q

is 50 mm above the HP and 45 mm in front of the VP. Draw the projections of the line and find its

true inclinations with the HP and the VP.

10.A line EF, 85 mm long has its end E, 25 mm above the HP and 20 mm in front of VP. The top andfront views of the line have lengths of 55 mm and 70 mm respectively. Draw the projections of the

line and find its true inclinations with the VP and the HP.

11.A distance between the projectors of two points A and B is 70 mm. A is 10 mm above HP and 15mm in front of VP. B is 50 mm above HP and 40 mm in front of VP. Find the true length and true

inclinations of the line with HP and VP using the Trapezoidal plane method.

12.A line GH has its end G, 15 mm above the HP and 20 mm in front of the VP. The end H is 40 mmabove the HP. The top view of the line measures 70 mm. The distance between the end projectors is

60 mm. Draw the projections of the line and find its true length and true inclinations with the HP and

the VP using

i) Rotating line method ii) Trapezoidal plane method

13. A straight line EF, 60 mm long makes an angle 45 with the HP and 30 with the VP. The end E is 10

mm above HP and 30 mm in front of VP. Draw the projections of the line and locate its traces.

14. The midpoint M of a straight line AB is 60 mm above HP and 50 mm in front of VP. The linemeasures 80 mm long and is inclined at an angle of 30 to the HP and 45 to the VP. Draw its

projections.

15. A line AB is 75 mm long. A is 50 mm in front of VP and 15 mm above HP. B is 15 mm in front of

VP and is above HP. Top view of AB is 50 mm long. Find the front view length and true

inclinations.

16. A line EF, 75 mm long is in the first quadrant with end E in the HP and end F in the VP. The line is

inclined at an angle of 30 to the HP and 45 to the VP. Draw the projections of the line EF.